PROGRAM

MONDAY  AFTERNOON    FEBRUARY 11

General Session

LOCATION:   Napoleon Ballroom B123
TIME:   4:00 PM - 6:00 PM
CHAIR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN
CO-CHAIR:   William Curran
    Penn State University
    Bozeman, MT
MODERATOR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN

 

*SPEAKER



MONDAY  AFTERNOON    FEBRUARY 11

WSSA Welcome Reception

LOCATION:   Armstrong
TIME:   6:00 PM - 8:00 PM
CHAIR:   Scott Senseman
    University of Tennessee
    Knoxville, TN

 

*SPEAKER



TUESDAY  MORNING    FEBRUARY 12

WSSA Sustaining Member Exhibit Session

 

*PRESENTER



TUESDAY  MORNING    FEBRUARY 12

Poster Contest - MS Students

 

*PRESENTER     † STUDENT POSTER CONTEST

 

†Effect of Late Season Herbicide Application Seed Production of Glyphosate-resistant Palmer Amaranth. J. H. Scarparo de Sanctis*1, A. J. Jhala2; 1University of Nebraska Lincoln, Lincoln, NE, 2University of Nebraska-Lincoln, Lincoln, NE (1)

 

Droplet Size Effects on Italian Ryegrass (Lolium multiflorum) Control in Mississippi Corn (Zea mays). M. T. Wesley1, Z. R. Treadway*2, J. Ferguson2, J. A. Bond3, E. J. Larson4; 1Mississippi State University, MS State, MS, 2Mississippi State University, Mississippi State, MS, 3Delta Research and Extension Center, Stoneville, MS, 4Mississippi State University, Starkville, MS (2)

 

†Effect of Soil-Applied Herbicide Timing on Cover Crop Establishment. J. Calhoun*1, D. B. Reynolds2; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS (3)

 

†Effects of Pesticide Seed Treatments and Tillage on Amaranthus spp.. S. A. Palmer*, R. G. Smith, N. Warren; University of New Hampshire, Durham, NH (4)

 

†Evaluating Native Perennial Grass Tolerance to Indaziflam Treatments. S. J. Nissen*; Colorado State University, Fort Collins, CO (5)

 

†Herbicide Efficacy as Influenced by Spray Nozzle Design and Weed Density. M. D. Kramer*1, Z. K. Perry2, T. R. Legleiter3; 1University of Kentucky, Lynn, IN, 2University of Kentucky, Paducah, KY, 3University of Kentucky, Princeton, KY (6)

 

†Impact of Adjuvants on Quizalofop Antagonism when Mixed with ALS Herbicides. C. Webster*1, E. P. Webster2, B. McKnight2, D. C. Walker2, S. Rustom2; 1Louisiana State University, Baton Rouge, AL, 2Louisiana State University, Baton Rouge, LA (7)

 

†Influence of Alternative Weed Control Options on Hop (Humulus lupulus) Production. N. Theisen*, H. Hatterman-Valenti; North Dakota State University, Fargo, ND (8)

 

†Irrigated and Non-Irrigated Peanut (Arachis hypogaea L.) Cultivar Response to Postemergence Paraquat Tank-Mixtures. K. M. Eason*1, R. Tubbs1, T. L. Grey2, S. Li3; 1University of Georgia, Tifton, GA, 2University of Geogia, Tifton, GA, 3Auburn University, Auburn, AL (9)

 

†Managing Palmer Amaranth with Sequential Applications of Dicamba and Glufosinate with and without Acetochlor. G. K. Flusche Ogden*1, P. A. Dotray1, J. D. Everitt2; 1Texas Tech University, Lubbock, TX, 2Bayer Crop Science, Lubbock, TX (10)

 

†Palmer Amaranth (Amaranthus palmeri) Survival and Fecundity After Various Herbicide Treatments and Application Timings. E. B. Scruggs*, M. L. Flessner; Virginia Tech, Blacksburg, VA (11)

 

†Safener May Enhance Tolerance to Soil-Applied Herbicide for Winter Wheat Varieties Grown in the Pacific Northwest. D. A. Raiyemo*1, J. Campbell2, R. Ma3, W. J. Price1, T. Rauch4, T. Prather2; 1University of Idaho, Moscow, ID, 2UNIVERSITY OF IDAHO, Moscow, ID, 3, Moscow, ID, 4UNIVERSITY OF IDAHO/PSES DEPT, Moscow, ID (12)

 

†Comparison of Herbicide Programs in Conventional, Glufosinate-Resistant, and Glyphosate/Dicamba-Resistant Soybean Across Nebraska. A. Striegel*1, S. Z. Knezevic2, N. C. Lawrence3, G. L. Hein2, G. Kruger4, C. Proctor2, A. J. Jhala2; 1University of Nebraska Lincoln, Lincoln, NE, 2University of Nebraska-Lincoln, Lincoln, NE, 3University of Nebraska-Lincoln, Pullman, WA, 4University of Nebraska-Lincoln, North Platte, NE (13)

 

†Cover Crops Suppress Weeds in Young Coffee Plantations. L. S. Resende*, A. O. Alecrim, K. G. Figueiredo, F. C. Medeiros, R. J. Guimarães; Federal University of Lavras, Lavras, Brazil (14)

 

†Effect of Carrier Volume and Nozzle Selection on Glufosinate and 2,4-D Efficacy. S. Davis*1, D. Dodds2, T. W. Eubank3, L. X. Franca2, J. P. McNeal4, B. Norris1, J. J. Williams1; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS, 3Mississippi State University, Stoneville, MS, 4Mississippi State University, Mississippi State, Mississippi, MS (15)

 

†Effect of Herbivory and Soil Fertility on Chinese Tallow in Louisiana: Insights for Management. O. C. Omoyele*; Veronica Manrique, Rodrigo Diaz, Baton Rouge, LA (16)

 

†Elevated CO2 Effect on the Germination Index (GI) and Emergence Index (EI) of Red Rice and Johnsongrass. J. C. Argenta*, S. Finlayson, T. Gentry, M. V. Bagavathiannan, K. Carson; Texas A&M University, College Station, TX (17)

 

†Harvest Weed Seed Control for Johnsongrass in Grain Sorghum: A Feasibility Analysis. B. L. Young*1, D. Sarangi1, N. E. Korres2, L. M. Lazaro3, M. J. Walsh4, J. K. Norsworthy2, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2University of Arkansas, Fayetteville, AR, 3Louisiana State University AgCenter, Baton Rouge, LA, 4University of Sydney, Narrabri, Australia (18)

 

†Influence of Dicamba Exposure on Glufosinate Resistant Soybean Canopy Closure. Z. K. Perry*1, M. D. Kramer2, T. R. Legleiter3; 1University of Kentucky, Paducah, KY, 2University of Kentucky, Lynn, IN, 3University of Kentucky, Princeton, KY (19)

 

†Managing Horseweed in Soybean with Cover Crops and Herbicides. J. A. Schramski*, C. Sprague, K. Renner; Michigan State University, East Lansing, MI (20)

 

Phenotypic Characteristics of F1 Hybrid Progenies of Sorghum bicolor x S. halepense. C. Sias*1, S. Ohadi2, G. Hodnett1, W. Rooney1, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2University of California, Davis, Davis, CA (21)

 

†Plant Demography of Chinese Tallow in Louisiana: Baseline Information Needed for Sustainable Management. D. Sevor*1, V. Manrique1, R. R. Diaz2; 1Southern University and A&M College, Baton Rouge, Baton Rouge, LA, 2Louisiana State University, Baton Rouge, LA (22)

 

†Response of Insect Pest and Beneficial Species to the Timing and Severity of Dicamba Injury in Soybean. W. A. Tubbs*, K. Rice, M. Bish, K. Bradley; University of Missouri, Columbia, MO (23)

 

Tank-Contamination of Dicamba or 2,4-D Influences Dry Edible Bean Production. S. R. Bales*1, C. Sprague2; 1Michigan State University, east lansing, MI, 2Michigan State University, East Lansing, MI (24)

 

†Bermudagrass Tolerance of Indaziflam Preemergence Applications. N. L. Hurdle*1, T. L. Grey2, P. McCullough3; 1University of Georgia, Tifton, GA, 2University of Geogia, Tifton, GA, 3University of Georgia, Griffin, GA (25)

 

†Herbicides Leaching Potential in Association with Hydroretent Polymer. K. G. Figueiredo*, A. T. Reis, C. F. Chagas, A. O. Paiva, L. S. Resende, G. B. Voltolini, F. C. Medeiros; Federal University of Lavras, Lavras, Brazil (26)

 

†Off-Target Movement Risk Associated with Flying Strategies, Nozzle Type, and Wind Variability for an Unmanned Aerial Sprayer. J. E. Hunter*, R. E. Austin, R. Richardson, T. Gannon, J. Neal, R. Leon; North Carolina State University, Raleigh, NC (27)

 

Rainfall Timing Effects on Preemergence Herbicide Efficacy in Soybean. P. H. Urach Ferreira1, L. H. Merritt*2, D. B. Reynolds1, J. T. Irby1, G. Kruger3, J. Ferguson1; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, MS State, MS, 3University of Nebraska-Lincoln, North Platte, NE (28)

 

†Repeat Applications of Postemergence Turfgrass Herbicides for Season-Long Yellow Nutsedge (Cyperus esculentus) Control. N. S. Minaev*1, J. D. McCurdy2, M. P. Richard1, Z. D. Small3; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State University, MS, 3Mississippi State University, Mississippi State, MS (29)

 

Response of Seashore Paspalum (Paspalum vaginatum Sw.) and Hybrid Bermudagrass (Cynodon dactylon x C. transvaalensis L. Pers.) to Topramezone and Triclopyr Mixtures. C. G. Goncalves*1, A. M. Brown2, J. R. Jim Harris2, J. S. McElroy2; 1Auburn University, auburn, AL, 2Auburn University, Auburn, AL (30)

 

†Virtual Models for Weed Science Education. A. Peart*1, B. A. Ackley2; 1The Ohio State University, Columbus, OH, 2Ohio State University, Columbus, OH (31)

 

†Weed Species Diversity in Railroad Right-of-Ways. A. W. Osburn*1, M. Loux2, E. E. Regnier1, K. Harrison2; 1The Ohio State University, Columbus, OH, 2Ohio State University, Columbus, OH (32)




TUESDAY  MORNING    FEBRUARY 12

Poster Contest - PhD Students

 

*PRESENTER     † STUDENT POSTER CONTEST

 

†Effects of Irrigation Water Quality on the Partitioning of Saflufenacil, Indaziflam, and Penoxsulam in Two California Orchard Soils. K. Martin*1, B. Hanson2; 1University of California, Davis, Davis, CA, 2University of California, Davis, Winters, CA (33)

 

Differences in Bioavailability of Atrazine, Topramezone and Mesosulfuron-methyl to Sensitive Species Across Varying Soil Textures. S. S. Ramanathan*1, T. Gannon1, A. Locke2, W. Everman1; 1North Carolina State University, Raleigh, NC, 2USDA-ARS and North Carolina State University, Raleigh, NC (34)

 

†Relative Duration of Residual Control Among Preemergent Herbicides. B. Sperry*1, D. B. Reynolds2, J. Ferguson2, J. A. Bond3, G. Kruger4, A. Brown-Johnson5; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS, 3Delta Research and Extension Center, Stoneville, MS, 4University of Nebraska-Lincoln, North Platte, NE, 5Mississippi State Chemistry Laboratory, Mississippi State, MS (35)

 

†Classification of Weeds in Row Crops Using Unmanned Aerial Systems. B. B. Sapkota*, V. Singh, D. Cope, M. V. Bagavathiannan; Texas A&M University, College Station, TX (36)

 

†Field Evaluation of 2,4-D and Dicamba Formulations on Cotton and Soybean Response. J. T. Buol*, D. B. Reynolds; Mississippi State University, Mississippi State, MS (37)

 

†Response of Dicamba-Resistant Kochia to Dicamba Applied Preemergence. R. Yadav*1, P. Jha1, V. Kumar2, S. Leland1; 1Montana State University, Huntley, MT, 2Kansas State University, Hays, KS (38)

 

†Leptochloa acuminata Flooding Tolerance in California Water Seeded Rice. K. E. Driver*, A. Godar, K. Al-Khatib; University of California, Davis, Davis, CA (39)

 

†Relative Uptake of Organic and Inorganic Nitrogen in Eight Common Weed Species. N. D. Warren*1, E. A. Hobbie1, J. Chen2, R. G. Smith1; 1University of New Hampshire, Durham, NH, 2International Atomic Energy Agency, Seibersdorf, Austria (40)

 

Effect of Crop Canopy and Herbicide Treatment on Kochia Density and Seed Production. E. G. Mosqueda*1, A. Kniss1, N. C. Lawrence2, P. Jha3, G. Sbatella4; 1University of Wyoming, Laramie, WY, 2University of Nebraska-Lincoln, Pullman, WA, 3Montana State University, Huntley, MT, 4University of Wyoming, Powell, WY (41)

 

†Cover Crops in Almond Orchards: Irrigation and Weed Suppression. S. C. Haring*1, C. Crézé1, A. Gaudin1, B. Hanson2; 1University of California, Davis, Davis, CA, 2University of California, Davis, Winters, CA (42)

 

†Cover Crop Response to Residual Herbicides in Peanut and Cotton Rotation. K. J. Price*1, S. Li1, A. Price2; 1Auburn University, Auburn, AL, 2USDA-ARS, Auburn, AL (43)

 

†Using Cover Crops to Manage Kochia scoparia in Wheat Production Systems of the Western United States. D. M. Thiemann*1, S. L. Young2; 1Utah State University, Nibley, UT, 2University of Nebraska-Lincoln, Ithaca, NY (44)

 

Postemergence Applications of Oxadiazon Effectively Diagnose Resistance in Eleusine indica. B. Bi*1, Q. Wang1, J. J. Coleman1, J. S. McElroy1, J. M. Peppers2, N. Hall1; 1Auburn University, Auburn, AL, 2Auburn University, auburn, AL (45)

 

Indaziflam Efficacy in the Control of Downy Brome. T. L. Burke*, I. C. Burke; Washington State University, Pullman, WA (46)

 

†Examining Negative Plant-Soil Feedback across Cropping Systems for Novel Weed Management. L. CHENG*1, J. Kao-Kniffin1, A. DiTommaso2; 1CORNELL UNIVERSITY, Ithaca, NY, 2Cornell University, Ithaca, NY (47)

 

†Use of Trifludimoxazin Alone and with Various Tank-Mix Partners for Foliar Control of Giant Ragweed (Ambrosia trifida). N. R. Steppig*1, S. Willingham2, D. M. Whalen3, B. G. Young4; 1Purdue University, Lafayette, IN, 2BASF, Seymour, IL, 3University of Missouri, Columbia, MO, 4Purdue University, Brookston, IN (48)

 

Management of Perennial Grass ssp. in Louisiana Rice Production. D. C. Walker*1, E. P. Webster1, B. McKnight1, S. Rustom1, C. Webster2; 1Louisiana State University, Baton Rouge, LA, 2Louisiana State University, Baton Rouge, AL (49)

 

†Weed Control and Economic Returns of Herbicide Systems. J. J. Williams*1, D. Dodds1, L. X. Franca1, B. Norris2, S. Davis2, J. P. McNeal3; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, Starkville, MS, 3Mississippi State University, Mississippi State, Mississippi, MS (50)

 

†Evaluating the Reproductive Capacities of Select Multiple Herbicide-Resistant Amaranthus tuberculatus Populations. E. A. Jones*1, M. D. Owen2, R. Leon1, W. Everman1; 1North Carolina State University, Raleigh, NC, 2Iowa State University, Ames, IA (51)

 

†Effect of Flooding Period and Seed Burial Depth on Palmer Amaranth (Amaranthus palmeri) Seed Germination. L. X. Franca*1, D. Dodds1, S. Davis2, J. P. McNeal3, J. J. Williams2, B. Norris2; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, Starkville, MS, 3Mississippi State University, Mississippi State, Mississippi, MS (52)

 

†Investigating Palmer Amaranth Resistance to S-Metolachlor in Arkansas. J. Kouame*1, N. R. Burgos2, C. D. Willett2, M. B. Bertucci2, E. M. Grantz2; 1University of Akansas, Fayetteville, AR, 2University of Arkansas, Fayetteville, AR (53)

 

†Palmer Amaranth (Amaranthus palmeri) and Thrips (Thrips sp.) Control with Various Dicamba + Insecticide Tank-Mixes in Cotton (Gossypium hirsutum). J. P. McNeal*1, D. Dodds2, A. L. Catchot3, S. Davis3, L. X. Franca2, B. Norris3, J. J. Williams3; 1Mississippi State University, Mississippi State, Mississippi, MS, 2Mississippi State University, Mississippi State, MS, 3Mississippi State University, Starkville, MS (54)

 

†Residual Control of Palmer Amaranth as Effected by Cover Crop and Herbicide. C. M. Perkins*1, K. Bradley2, J. K. Norsworthy3, D. B. Reynolds4, K. L. Gage5, S. Steckel6, B. G. Young7, L. E. Steckel6; 1The University of Tennessee, Jackson, TN, 2University of Missouri, Columbia, MO, 3University of Arkansas, Fayetteville, AR, 4Mississippi State University, Mississippi State, MS, 5Southern Illinois University, Carbondale, IL, 6University of Tennessee, Jackson, TN, 7Purdue University, Brookston, IN (55)

 

†Weed Population Herbicide Resistance Control through Sensitive Allele Gene Swamping in silico for Amaranthus tuberculatus.. B. C. Alexander*1, A. S. Davis2, A. Hager3, P. Tranel4; 1University of Illinois, Champaign, IL, 2N-319 Turner Hall, Urbana, IL, 3University of Illinois, Urbana, IL, 4University of Illinois, Urbana, IL (56)

 

Detection of ACCase-Inhibiting Herbicide Resistance in Southern Crabgrass (Digitaria ciliaris) through Gel-Box Bioassay. S. Basak*1, B. Bi1, A. M. Brown1, P. McCullough2, J. S. McElroy1; 1Auburn University, Auburn, AL, 2University of Georgia, Griffin, GA (57)

 

Characterization of the Functional Trait Diversity in Ryegrass (Lolium spp.) Accessions Collected from Texas Blacklands. A. Maity*1, S. Abugho1, V. Singh1, N. Subramanian1, G. R. Smith2, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2Texas A&M University, Overton, TX (58)

 

†Cross-Resistance to ALS Inhibitors in Smooth Pigweed (Amaranthus hybridus) from the Campos Gerais Region in Brazil. R. R. Mendes*1, R. S. Oliveira Jr.2, V. V. Silva3, H. K. Takano4; 1State University of Maringa, Maringá, Brazil, 2Stat University of Maringa, Maringá, Brazil, 3State University of Maringá, Maringá, Brazil, 4Colorado State University, Ft Collins, CO (59)

 

†The Function of Cytochrome P450 Monooxygenases in Herbicide Bioactivation and Inactivation. D. W. Brooks*1, T. Gaines1, R. L. Nichols2, F. E. Dayan1; 1Colorado State University, Fort Collins, CO, 2Cotton Incorporated, Cay, NC (60)




TUESDAY  MORNING    FEBRUARY 12

Section 1. Agronomic Crops

 

*PRESENTER

 

WSSA Advocates for Weed Controls that Protect Soybean Export Value. C. Moseley*1, L. Van Wychen2, H. Curlett3, J. Schroeder4, P. D. Laird5, S. P. Conley6; 1Syngenta, Greensboro, NC, 2WSSA, Alexandria, VA, 3APHIS-USDA, Washington, DC, 4USDA Office of Pest Management Policy, Arlington, VA, 5Syngenta Crop Protection, LLC, Greensboro, NC, 6University of Wisconsin, Madison, WI (61)

 

Evaluation of Preemergence and Postemergence Applications of Metribuzin on Weed Control Programs and Crop Safety in Corn. T. Bararpour*1, R. R. Hale2; 1Mississippi State University, Stoneville, MS, 2Mississippi State University, Fayetteville, AR (62)

 

Effective Herbicide Programs for Managing Glyphosate-Resistant Palmer Amaranth in Roundup Ready 2 Xtend Soybean. V. Kumar*1, R. Liu1, T. Lambert2, D. Peterson3; 1Kansas State University, Hays, KS, 2Kansas State University, hays, KS, 3Kansas State University, Manhattan, KS (63)

 

Canopy Structure of Wheat Varieties and their Influence on the Weed Suppressive Ability. M. E. Cena1, H. A. Acciaresi*2; 1CIC, Pergamino, Argentina, 2Instituto Nacional Tecnologia Agropecuaria, Pergamino, Argentina (64)

 

Effects of Cover Crop Mixtures in the Weed Emergence and Above Ground Dry Matter. M. V. Buratovich1, H. A. Acciaresi*2; 1Inta Pergamino, Pergamino, Argentina, 2Instituto Nacional Tecnologia Agropecuaria, Pergamino, Argentina (65)

 

Effect of Fallow Sequential Spray of ALS Herbicides in Soybean Grain Yield Productivity. M. A. Principiano*1, H. A. Acciaresi2; 1CIC-UNNOBA, Pergamino, Argentina, 2Instituto Nacional Tecnologia Agropecuaria, Pergamino, Argentina (66)

 

Industrial Hemp Herbicide Tolerance Screening. M. L. Flessner*, J. Byrd, J. Fike, K. W. Bamber; Virginia Tech, Blacksburg, VA (67)

 

Perspectives on Wheat Yield Losses Due to Weeds in North America. M. L. Flessner*1, A. Dille2, P. Sikkema3, I. C. Burke4, W. Everman5, M. J. VanGessel6; 1Virginia Tech, Blacksburg, VA, 2Kansas State University, Manhattan, KS, 3University of Guelph, Ridgetown, ON, 4Washington State University, Pullman, WA, 5North Carolina State University, Raleigh, NC, 6University of Delaware, Georgetown, DE (68)

 

Herbicide Resistance in Montana: Current Status and Future Directions. P. Jha*1, V. Kumar2, C. A. Lim1, R. Yadav1, S. Leland1, J. Anjani1; 1Montana State University, Huntley, MT, 2Kansas State University, Hays, KS (69)

 

The Influence of Application Timing on Sequential Applications of Enlist Duo, Enlist One, and Liberty on Palmer Amaranth Control. D. C. Foster*1, P. A. Dotray1, K. R. Russell1, M. Lovelace2; 1Texas Tech University, Lubbock, TX, 2Corteva Agriscience, Lubbock, TX (70)

 

Hyperspectral Reflectance Properties of Redroot Pigweed Versus Okra Leaf Cotton. R. Fletcher*; USDA-ARS, Greenville, MS (71)

 

Systems Approach to Weed Management in Corn in Wisconsin. R. Werle*1, R. P. Dewerff2, S. V. Striegel3, N. Arsenijevic1, V. H. Vidal Ribeiro1, M. Coura Oliveira1; 1University of Wisconsin-Madison, Madison, WI, 2Agricultural Research of Wisconsin, LLC, Madison, WI, 3, What Cheer, IA (72)

 

Does Overlap of Provisia Herbicide Impact ACCase-Resistant Rice Tolerance? B. McKnight*1, E. P. Webster1, S. Rustom1, C. Webster2, D. C. Walker1; 1Louisiana State University, Baton Rouge, LA, 2Louisiana State University, Baton Rouge, AL (73)

 

Kochia (Bassia scoparia) Control and Enlist Cotton (Gossypium hirsutum) Response Following Preplant Herbicide Treatments. U. Torres*1, P. A. Dotray1, K. R. Russell1, G. K. Flusche Ogden1, M. Lovelace2; 1Texas Tech University, Lubbock, TX, 2Corteva Agriscience, Lubbock, TX (74)

 

Management of Bromus Species with Pyroxasulfone and Metribuzin in Winter Wheat. R. J. Zuger*, I. C. Burke; Washington State University, Pullman, WA (75)

 

State of Resistance for Palmer Amaranth Populations from the North Carolina Coastal Plain. D. J. Mahoney*1, D. Jordan2, A. T. Hare2, N. R. Burgos3, K. M. Jennings2, R. Leon2, M. C. Vann2; 1North Carolina State University, Cary, NC, 2North Carolina State University, Raleigh, NC, 3University of Arkansas, Fayetteville, AR (76)

 

Control of Amaranthus palmeri with Resistance to Inhibitors of EPSPS and ALS in the Succession of Soybean-Cotton. F. S. Ikeda*1, S. D. Cavalieri1, F. Poltronieri2, A. Deon2; 1Embrapa, Sinop, Brazil, 2Federal University of Mato Grosso, Sinop, Brazil (77)

 

Response of Peanut to Low Rates of Engenia at Different Growth Stages. T. Bararpour*1, R. R. Hale2, J. W. Seale1; 1Mississippi State University, Stoneville, MS, 2Mississippi State University, Fayetteville, AR (78)

 

The Susceptibility of Soybean (Glycine Max) to Soil Incorporated Palmer Amaranth (Amaranthus palmeri)  and Pitted Morning Glory (Ipomoea lacunosa) Residues. D. D. Joseph*; Clemson University, Clemson, SC (79)

 

Control of Glyphosate-Resistant Common Ragweed in Corn with Preemergence and Postemergence Herbicides. N. Soltani*, L. R. Brown, P. Sikkema; University of Guelph, Ridgetown, ON (80)

 

Potential Yield Loss in Corn, Soybean, Dry Bean and Sugar Beet Due to Weed Interference in North America. N. Soltani*1, A. Dille2, T. J. Peters3, I. C. Burke4, W. Everman5, M. J. VanGessel6, V. Davis7, P. Sikkema1; 1University of Guelph, Ridgetown, ON, 2Kansas State University, Manhattan, KS, 3North Dakota State University, Fargo, ND, 4Washington State University, Pullman, WA, 5North Carolina State University, Raleigh, NC, 6University of Delaware, Georgetown, DE, 7BASF, Verona, WI (81)

 

Grape Hyacinth Control in a Wheat-Soybean Rotation. S. C. Beam*1, M. L. Flessner2, M. J. VanGessel3, K. Vollmer3; 1Virginia Tech, Concord, NC, 2Virginia Tech, Blacksburg, VA, 3University of Delaware, Georgetown, DE (82)

 

Comparison of Various Water and Tank Cleaner Rinse Sequences for Effective Removal of Dicamba from Contaminated Sprayer Systems. Z. A. Carpenter*, D. B. Reynolds, A. B. Johnson; Mississippi State University, Mississippi State, MS (83)

 

Cutleaf Evening Primrose (Oenothera laciniata) and Winter Annual Broadleaf Control in Wheat in Mississippi and Oklahoma. C. Ferguson*1, M. Manuchehri2, M. T. Wesley3, L. H. Merritt3, K. L. Broster1, Z. R. Treadway1, J. Childers2; 1Mississippi State University, Mississippi State, MS, 2Oklahoma State University, Stillwater, OK, 3Mississippi State University, MS State, MS (84)

 

Herbicide Carryover to Various Fall Planted Cover Crop Species. L. S. Rector*1, M. L. Flessner1, K. B. Pittman1, S. C. Beam2, K. W. Bamber1; 1Virginia Tech, Blacksburg, VA, 2Virginia Tech, Concord, NC (85)

 

Impact of Reduced Rates of Isoxaflutole on Soybean Growth and Yield. D. Miller*1, D. O. Stephenson2; 1Louisiana State University AgCenter, St. Joseph, LA, 2Louisiana State University AgCenter, Alexandria, LA (86)

 

Season Long Herbicide Programs in Mississippi Peanut Production. K. L. Broster*1, J. Ferguson1, T. A. Baughman2, B. Zurweller3, B. Rushing4; 1Mississippi State University, Mississippi State, MS, 2Oklahoma State University, Ardmore, OK, 3Mississippi State University, Starkville, MS, 4Mississippi State University, Newton, MS (87)

 

Influence of Six Herbicides Applied to Silage Corn on Fall Planted Rye and Radish Cover Crop Growth in South Dakota Soils. S. Pridie*1, G. Shaffer2, S. Potthoff1, S. A. Clay1; 1South Dakota State University, Brookings, SD, 2South Dakota State University, Aberdeen, SD (88)

 

Early Development of Horseweed (Conyza canadensis L.). W. Molin*, K. Parys, C. L. Beck; USDA-ARS, Stoneville, MS (89)

 

Effect of Asulam on Fall Panicum Seed Production. D. Odero*, R. Negrisoli; University of Florida, Belle Glade, FL (90)

 

Saflufenacil, Halauxifen-Methyl, and Other Herbicides for Preplant Weed Control. W. C. Greene*1, M. L. Flessner2, K. B. Pittman2, K. W. Bamber2, L. S. Rector2, S. C. Beam3, C. W. Cahoon4; 1Virginia Tech, Virginia Tech, VA, 2Virginia Tech, Blacksburg, VA, 3Virginia Tech, Concord, NC, 4Virginia Tech, Painter, VA (91)

 

Residual Activity of Thiencarbazone-Methyl with and without Common Soybean Herbicides. Z. D. Lancaster*1, J. K. Norsworthy1, G. L. Priess1, T. Barber2; 1University of Arkansas, Fayetteville, AR, 2University of Arkansas, Lonoke, AR (92)

 

Impact of Sublethal Dicamba and Glyphosate on Three Chipping Potato Cultivars. M. J. Brooke*; North Dakota State University, Fargo, ND (93)

 

Geographical Distribution of Cyhalofop-Butyl and Penoxsulam Resistant Echinochloa Species in Korea. D. KIM*1, J. Kim2, S. Lim3; 1Seoul National University, Seoul, South Korea, 2National Institute of Agricultural Sciences, Wanju, South Korea, 3Universtiy of Illinois, Urbana-Champaign, IL (94)

 

Weed Management in Saffron. M. A. Haidar*; American University of Beirut, BEIRUT, Lebanon (95)

 

Evaluation of Pyraclonil for its Weed Control Efficacy and Crop Safety in California Rice. A. S. Godar*1, K. Al-Khatib1, J. Gutierrez2; 1University of California, Davis, Davis, CA, 2Nichino America, Inc., Fresno, CA (96)




TUESDAY  MORNING    FEBRUARY 12

Section 2. Horticultural Crops

 

*PRESENTER

 

IR-4 Project: Update and New Programs to Address Specialty Crop Grower Needs. D. Kunkel*1, R. B. Batts2, M. J. Braverman3, J. Baron4; 1Rutgers University, Princeton, NJ, 2NCSU IR-4 Field Research Center, Fremont, NC, 3Rutgers University, princeton, NJ, 4IR-4 Project, Hillsborough, NJ (97)

 

Cranberry Response to Rate and Application Timing with Flumioxazin and Sulfentrazone. B. L. Carr1, T. E. Besancon*2; 1Rutgers University, Chatsworth, NJ, 2Rutgers University, CHATSWORTH, NJ (98)

 

Use of Drone Imaging for Assessing Weed Control and Disease Pressure in Highbush Blueberry. M. G. Mars1, D. C. Nuhn1, B. L. Carr2, T. E. Besancon*3, P. V. Oudemans3; 1Stockton University, CHATSWORTH, NJ, 2Rutgers University, Chatsworth, NJ, 3Rutgers University, CHATSWORTH, NJ (99)

 

Herbicide Evaluations for Ontario Grown Quinoa. R. E. Nurse*1, M. Cowbrough2; 1Agriculture and Agri-Food Canada, Harrow, ON, 2Ontario Ministry of Agriculture, Food and Rural Affairs, Guelph, ON (100)

 

Response of Sweetpotato to Fluridone Preplant Followed by Irrigation. S. Chaudhari*, K. M. Jennings, D. Monks, S. C. Smith, L. D. Moore; North Carolina State University, Raleigh, NC (101)

 

Muscadine Grape (Vitis rotundifolia) Tolerance to 2,4-D Choline Applied as a Directed Spray. C. D. Holmberg*1, K. M. Jennings2; 1North Carolina State University, Mills River, NC, 2North Carolina State University, Raleigh, NC (102)

 

Interseeded Cover Crop Tolerance to Herbicides in Non-Transgenic Sweet Corn. E. Peachey, A. Donaldson*; Oregon State University, Corvallis, OR (103)




TUESDAY  MORNING    FEBRUARY 12

Section 3. Turf and Ornamental Crops

 

*PRESENTER

 

Deep Learning for Image-Based Weed Detection. J. Yu*1, S. M. Shaun2, A. W. Schumann2, N. Boyd1; 1University of Florida, Balm, FL, 2University of Florida, Wimauma, FL (104)

 

Role of Herbicide Movement through Organic Mulch on Weed Control Efficacy in Nursery Container Production. D. Saha*1, C. Marble2, B. Pearson1, H. Perez3, G. MacDonald3, D. Odero4; 1Mid-Florida Research and Education Center, University of Florida, Apopka, FL, 2University of Florida, Apopka, FL, 3University of Florida, Gainesville, FL, 4University of Florida, Belle Glade, FL (105)

 

Control Strategies for Nostoc: A Health and Safety Concern in Container Nurseries. J. Neal*, C. D. Harlow, H. Lin; North Carolina State University, Raleigh, NC (106)

 

On Farm Evaluation of Multiple Mulch Materials for Long-Term Weed Control in Container Nurseries. C. Marble*1, S. T. Steed2; 1University of Florida, Apopka, FL, 2University of Florida/IFAS Extension, Seffner, FL (107)

 

Combination Treatments of Simazine and Trifloxysulfuron for Poa annua. E. B. De Castro*1, M. P. Richard2, J. D. McCurdy3; 1Mississippi State University, STARKVILLE, MS, 2Mississippi State University, Starkville, MS, 3Mississippi State University, Mississippi State University, MS (108)

 

Rate Response of Select Grass Weeds to Pinoxaden. J. M. Peppers*; Auburn University, Auburn, AL (109)

 

Seasonal Goosegrass (Eleusine indica) Emergence in Turfgrass. M. T. Elmore*1, D. P. Tuck2, K. Diehl1; 1Rutgers University, New Brunswick, NJ, 2Rutgers University, North Wales, PA (110)




TUESDAY  MORNING    FEBRUARY 12

Section 4. Pasture, Rangeland, Forest, and Rights of Way

 

*PRESENTER

 

Herbicide Application Timing to Control Bulbous Buttercup (Ranunculus bulbosus) in a Pasture. R. S. Chandran*; West Virginia University, Morgantown, WV (111)

 

Hayfield Sward Response to Herbicide-Impregnated Dry Fertilizer. W. C. Greene1, M. L. Flessner2, K. W. Bamber*2, P. L. Burch3, S. Flynn4; 1Virginia Tech, Virginia Tech, VA, 2Virginia Tech, Blacksburg, VA, 3Corteva Agriscience, Christiansburg, VA, 4Corteva Agriscience, Lees Summit, MO (112)

 

Strategies for Controlling Wild Poinsettia in Alabama Roadsides. A. P. Boyd*1, E. Guertal1, D. Han1, H. Peavey2; 1Auburn University, Auburn, AL, 2Alabama Department of Transportation, Montgomery, AL (113)




TUESDAY  MORNING    FEBRUARY 12

Section 5. Wildland and Aquatic Invasive Plants

 

*PRESENTER



TUESDAY  MORNING    FEBRUARY 12

Section 6. Regulatory Aspects

 

*PRESENTER

 

WSSA Hosts US EPA Summer Tour through Nebraska and Iowa. G. Kruger*1, J. Gizotti de Moraes1, B. Canella Vieira1, J. Schroeder2, L. Van Wychen3; 1University of Nebraska-Lincoln, North Platte, NE, 2USDA Office of Pest Management Policy, Arlington, VA, 3WSSA, Alexandria, VA (114)




TUESDAY  MORNING    FEBRUARY 12

Section 7. Teaching and Extension

 

*PRESENTER

 

Partnering With Industry to Deliver Weed Science Continuing Education to Florida’s Turfgrass Professionals. F. Fishel*1, H. Russo2; 1University of Florida, Gainesville, FL, 2Florida Turfgrass Association, Lakeland, FL (115)

 

The University of Tennessee's Comprehensive Herbicide Stewardship Program. N. Rhodes*1, L. E. Steckel2, T. Mueller1, D. McIntosh1; 1University of Tennessee, Knoxville, TN, 2University of Tennessee, Jackson, TN (116)

 

A Short Course on Herbicide Modes of Action and Herbicide Resistance. T. Mueller*; University of Tennessee, Knoxville, TN (117)

 

Burcucumber Management in Pennsylvania: What Have we Learned in 20 years? D. Lingenfelter*1, W. S. Curran2; 1Penn State University, University Park, PA, 2Penn State University, Bozeman, MT (118)

 

Grower Preferred Extension Topics, Information Sources, and Delivery Methods in Virginia. K. B. Pittman*, M. L. Flessner; Virginia Tech, Blacksburg, VA (119)

 

Screening for ALS-Inhibitor Resistance in Shattercane Populations Collected from Sorghum Fields in Texas Gulf Coast. S. Shrestha*1, G. Hodnett2, W. Rooney2, M. V. Bagavathiannan2; 1Mississippi State University, Starkville, MS, 2Texas A&M University, College Station, TX (120)

 

Improving Early Weed Detection in an Era of Rapid Range Expansion through Development of a Weed ID Network in NY State. A. DiTommaso*, C. A. Marschner; Cornell University, Ithaca, NY (121)

 

Complicated: Kentucky Grower and Applicator Impressions and Responses following 2018 Dicamba Trainings. T. R. Legleiter*1, J. Green2; 1University of Kentucky, Princeton, KY, 2University of Kentucky, Lexington, KY (122)

 

An Interactive Web App that Estimates the Risk of Developing Herbicide Resistance. A. Kniss*1, A. T. Adjesiwor1, N. C. Lawrence2; 1University of Wyoming, Laramie, WY, 2University of Nebraska-Lincoln, Pullman, WA (123)




TUESDAY  MORNING    FEBRUARY 12

Section 8. Formulation, Adjuvant and Application Technology

 

*PRESENTER

 

Dicamba Volatility from Nitrogen Fertilizer Enriched Soils. M. Bernards*, B. S. Heaton; Western Illinois University, Macomb, IL (124)

 

Hordeum spp. and Bromus spp. with Glyphosate Resistance, as a New Infection Case in Olive Grove from South of Spain. C. Palma-Bautista1, A. M. Rojano-Delgado2, D. A. Mora2, R. Domínguez-Mendez2, J. M. Rosario3, J. Vasquez-Garcia2, J. Portugal4, R. De Prado Amian*5; 1University of Cordoba, CÓRDOBA, Spain, 2University of Cordoba, Cordoba, Spain, 3Universidad Católica Tecnológica del Cibao, La Vega, Dominican Republic, 4Polytechnic Institute of Beja, Beja, Portugal, 5University of Cordoba, Córdoba, Spain (125)

 

Influence of CyP450 in the Resistance to PPO-Inhibiting Herbicides: Case of a Euphorbia heterophylla Biotype. A. M. Rojano-Delgado1, C. Palma-Bautista2, J. Vazquez-Garcia1, D. A. Mora1, J. M. Rosario3, J. Portugal4, R. De Prado Amian*5; 1University of Cordoba, Cordoba, Spain, 2University of Cordoba, CÓRDOBA, Spain, 3Universidad Católica Tecnológica del Cibao, La Vega, Dominican Republic, 4Polytechnic Institute of Beja, Beja, Portugal, 5University of Cordoba, Córdoba, Spain (126)

 

Multiple Resistance to IMI and FOP Herbicides of L. rigidum Biotypes Found in Clearfield Wheat Crops. R. Domínguez-Mendez1, C. Palma-Bautista2, A. M. Rojano-Delgado1, J. M. Rosario3, M. D. Osuna4, J. Portugal5, R. De Prado Amian*6; 1University of Cordoba, Cordoba, Spain, 2University of Cordoba, CÓRDOBA, Spain, 3Universidad Católica Tecnológica del Cibao, La Vega, Dominican Republic, 4Agrarian Research Center “Finca La Orden Valdesequera”, Badajoz, Spain, 5Polytechnic Institute of Beja, Beja, Portugal, 6University of Cordoba, Córdoba, Spain (127)




TUESDAY  MORNING    FEBRUARY 12

Section 9. Weed Biology and Ecology

 

*PRESENTER

 

Tricotyledenous Giant Ragweed (Ambrosia trifida L.). E. R. Page*1, S. Meloche2, J. Bae3, J. Larsen2, M. Laforest4, R. E. Nurse1; 1Agriculture and Agri-Food Canada, Harrow, ON, 2Agriculture and Agr-Food Canada, Harrow, ON, 3Agriculture and Agri-Food Canada, Harrow, BC, 4Agriculture and AgriFood Canada, St-jean-sur-Richelieu, QC (128)

 

An ALA122THR Substitution in the AHAS/ALS Gene Confers Imazamox-Resistance in Jointed Goatgrass (Aegilops cylindrica Host.). I. C. Burke*, J. Rodriguez, A. Hauvermale, A. Carter; Washington State University, Pullman, WA (129)

 

Modeling Seed Germination in Palmer Amaranth (Amaranthus palmeri). M. Matzrafi*, S. Ohadi, M. B. Mesgaran; University of California, Davis, Davis, CA (130)

 

Seed Banks During Five Year on Integrated Crop-Livestock-Forest System Under Different Shading Levels in Sinop, Mato Grosso, Brazil. F. S. Ikeda*1, S. D. Cavalieri1, F. Poltronieri2, L. Menegatti2, F. M. Lima Júnior2, L. H. Metz2, B. T. Fonseca2; 1Embrapa, Sinop, Brazil, 2Federal University of Mato Grosso, Sinop, Brazil (131)

 

Seed Banks Size During Six Years on Single and Integrated Cropping Systems in Sinop, Mato Grosso, Brazil. F. S. Ikeda*1, S. D. Cavalieri1, F. Poltronieri2, L. Menegatti2, F. M. Lima Júnior2, L. H. Metz2, B. T. Fonseca2; 1Embrapa, Sinop, Brazil, 2Federal University of Mato Grosso, Sinop, Brazil (132)

 

The Interaction Between Cover Crops and Herbicide Programs on Weed Management in Tobacco. E. Haramoto*1, C. J. Lowry2, R. Pearce1; 1University of Kentucky, Lexington, KY, 2Agricultural Research Service, Urbana, IL (133)

 

Adaptation of Palmer Amaranth to the Upper Midwest. M. Coura Oliveira*1, M. Bernards2, A. J. Jhala3, C. Proctor3, S. Stepanovic4, R. Werle1; 1University of Wisconsin-Madison, Madison, WI, 2Western Illinois University, Macomb, IL, 3University of Nebraska-Lincoln, Lincoln, NE, 4University of Nebraska-Lincoln, Grant, NE (134)

 

Effect of Cover Crop Biomass on the Summer Annual Weed Density and Biomass in Soybean. T. Stanton*, E. Haramoto; University of Kentucky, Lexington, KY (135)

 

Germination Ecology of Carpetweed, Carolina Geranium, Eclipta, and Goosegrass. S. M. Sharpe*1, N. Boyd2; 1University of Florida, Wimauma, FL, 2University of Florida, Balm, FL (136)

 

Do Pesticide Seed Treatments Alter the Abundance and Composition of Weed Communities? R. G. Smith*, S. A. Palmer, N. D. Warren; University of New Hampshire, Durham, NH (137)

 

Relationship Between the Growth Habit and the Vegetative and Reproductive Aerial Structures of Junglerice (Echinochloa colona). G. Picapietra1, H. A. Acciaresi*2; 1EEA INTA Pergamino, Argentina, Argentina, 2Instituto Nacional Tecnologia Agropecuaria, Pergamino, Argentina (138)

 

The Mitochondrial Genome of Goosegrass (Eleusine indica) and a Method for Detecting Mitochondrial Gene Content in Species Lacking Assembled Mitochondrial Genomes. N. D. Hall*1, H. Zhang1, J. P. Mower2, L. R. Goertzen1, J. S. McElroy1; 1Auburn University, Auburn, AL, 2University of Nebraska–Lincoln, Auburn, NE (139)

 

Can Pollination Bags be Used to Evaluate the Seed Production of Common Ragweed (Ambrosia artemisiifolia)? M. Simard*1, R. E. Nurse2, E. R. Page2; 1Agriculture and Agri-Food Canada, Saint-jean-sur-Richelieu, QC, 2Agriculture and Agri-Food Canada, Harrow, ON (140)

 

Emergence Characteristics of Palmer Amaranth Populations from the U.S. Central Great Plains. R. Liu*1, V. Kumar1, T. Lambert2, M. Manuchehri3, N. C. Lawrence4, M. V. Bagavathiannan5, T. Gaines6; 1Kansas State University, Hays, KS, 2Kansas State University, hays, KS, 3Oklahoma State University, Stillwater, OK, 4University of Nebraska-Lincoln, Pullman, WA, 5Texas A&M University, College Station, TX, 6Colorado State University, Fort Collins, CO (141)

 

A New Mutation in the Amaranthus retroflexus Acetolactate Synthase Gene Confers Resistance to Imidazolinones, but not Sulfonylureas and Triazolopyrimidines. M. Laforest*1, B. Soufiane2, K. Bisaillon2; 1Agriculture and AgriFood Canada, St-jean-sur-Richelieu, QC, 2Agriculture and AgriFood Canada, St-Jean-sur-Richelieu, QC (142)

 

Changes in Rice Field Algae Assemblage in Response to Fertilizer Application Rate. S. Ohadi*1, J. D. Madsen2, K. Al-Khatib1; 1University of California, Davis, Davis, CA, 2USDA-ARS, Woodland, CA (143)

 

Wild radish (Raphanus raphanistrum L.) Seedling Emergence in NC. T. A. Reinhardt Piskackova*, K. M. Jennings, R. Richardson, C. Reberg-Horton, R. Leon; North Carolina State University, Raleigh, NC (144)

 

Non-Chemical Management Practices and their Impact on Weed Population Dynamics in Organic Grain Production. S. L. Samuelson*, N. Rajan, R. Schnell, M. V. Bagavathiannan; Texas A&M University, College Station, TX (145)




TUESDAY  MORNING    FEBRUARY 12

Section 10. Biocontrol of Weeds

 

*PRESENTER

 

Extending the Host Range of a Commercial Bioherbicidal Fungus. C. D. Boyette*1, R. E. Hoagland2, K. C. Stetina1; 1USDA-ARS, Stoneville, MS, 2USDA-ARS-CPSRU, Stoneville, MS (146)

 

Pesta Granular Mycoherbicide for Combating Broomrape in Vicia faba Field in Egypt. Y. M. Shabana*1, M. M. El-Hawary2, M. E. Sadek3; 1Mansoura University, El-Mansoura, Egypt, 2Agricultural Research Center, Giza, Egypt, 3Mansoura University, Mansoura, Egypt (147)

 

Developing Host-Specific Bioherbicide for Management of Waterhyacinth in Egypt. Y. M. Shabana*; Mansoura University, El-Mansoura, Egypt (148)

 

Isoxazolopyridines – Herbicides with Novel PSII Inhibition Characteristics for Weed Control. D. A. Carrera*1, S. Rühm1, R. Campe2, J. Lerchl2; 1BASF SE, Ludwigshafen, Germany, 2BASF SE, Limburgerhof, Germany (149)

 

Characterization of Phalaris brachystachys L. Resistant to ALS Inhibitor Herbicides in Winter Wheat from Iran. S. Golmohammadzadeh1, J. Gherekhloo1, C. Palma-Bautista2, A. M. Rojano-Delgado3, R. De Prado Amian*4; 1Gorgan University, Iran, Iran, 2University of Cordoba, CÓRDOBA, Spain, 3University of Cordoba, Cordoba, Spain, 4University of Cordoba, Córdoba, Spain (150)

 

Allelopathic Rice Varieties for Weed Suppression: A Tool in Organic Rice. S. Abugho*1, J. L. Samford2, A. McClung3, X. Zhou4, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2Texas A&M University, Eagle Lake, TX, 3USDA-ARS, Stuttgart, AR, 4Texas A&M University, Beaumont, TX (151)




TUESDAY  MORNING    FEBRUARY 12

Section 11. Physiology

 

*PRESENTER

 

The Evaluation of Organic Cleaner for Dicamba. G. LaBiche*1, L. M. Lazaro1, M. R. Foster1, Z. Liu2; 1Louisiana State University AgCenter, Baton Rouge, LA, 2Louisiana State University, Baton Rouge, LA (152)

 

Investigating Dicamba Uptake and Translocation in Dicamba-Tolerant Tomato Using HPLC. R. Zangoueinejad1, M. Alebrahim2, T. Tseng*3; 1Mississippi State University, mississippi st, MS, 2University of Mohaghegh Ardabili, Ardabil, Iran, 3Mississippi State University, Mississippi State, MS (153)

 

A Non-Destructive Leaf Disc Assay for Rapid Diagnosis of Herbicide Resistance in Weeds. C. Wu*1, A. Perez-Jones2, P. Feng3; 1Bayer Crop Science, St Louis, MO, 2Bayer Crop Science, Chesterfield, MO, 3Bayer Crop Science, Saint Louis, MO (154)

 

Importance of the Imazamox Exudation in the Resistance Level of a Euphorbia heterophylla Biotype. A. M. Rojano-Delgado1, C. Palma-Bautista2, D. A. Mora1, J. Vazquez-Garcia1, J. M. Rosario3, J. Portugal4, R. De Prado Amian*5; 1University of Cordoba, Cordoba, Spain, 2University of Cordoba, CÓRDOBA, Spain, 3Universidad Católica Tecnológica del Cibao, La Vega, Dominican Republic, 4Polytechnic Institute of Beja, Beja, Portugal, 5University of Cordoba, Córdoba, Spain (155)

 

Multiple Resistance to Herbicides in a Parthenium hysterophorus Biotype Found in Caribbean Zone. D. A. Mora1, J. M. Rosario2, C. Palma-Bautista3, R. Domínguez-Mendez1, A. M. Rojano-Delgado1, J. Portugal4, R. De Prado Amian*5; 1University of Cordoba, Cordoba, Spain, 2Universidad Católica Tecnológica del Cibao, La Vega, Dominican Republic, 3University of Cordoba, CÓRDOBA, Spain, 4Polytechnic Institute of Beja, Beja, Portugal, 5University of Cordoba, Córdoba, Spain (156)

 

Resistance to ALS Inhibitors Due to Trp574Leu Substitution in Redroot Pigweed and Tall Waterhemp from Mississippi. V. K. Nandula*1, D. Giacomini2, J. Ray3; 1USDA-ARS, Cleveland, MS, 2University of Illinois, Urbana, IL, 3USDA, Stoneville, MS (157)

 

Resistance to Protoporphyrinogen Oxidase (PPO) Inhibitors in Palmer Amaranth from Mississippi. V. K. Nandula*1, W. Molin2; 1USDA-ARS, Cleveland, MS, 2USDA-ARS, Stoneville, MS (158)

 

Herbicide Resistance Screening Studies on a Phalaris minor Population from India. V. K. Nandula*1, S. Singh2; 1USDA-ARS, Cleveland, MS, 2CCSHAU, Hisar, India (159)

 

An Interactive Database for Exploring the Physicochemical Properties of Herbicides and Herbicide Leads. J. S. Mylne*, M. N. Gandy, M. G. Corral, K. A. Stubbs; The University of Western Australia, Perth, Australia (160)

 

Herbicide Discovery and Development 2020, Perth. J. S. Mylne*, K. A. Stubbs, J. Haywood; The University of Western Australia, Perth, Australia (161)

 

Insights into the Genetic Basis of Glufosinate Resistance in Italian ryegrass (Lolium multiflorum) from California. S. Morran*1, M. Matzrafi1, P. Tehranchian2, M. Jasieniuk1; 1University of California, Davis, Davis, CA, 2University of Arkansas, Davis, CA (162)




TUESDAY  MORNING    FEBRUARY 12

Section 12. Soil and Environmental Aspects

 

*PRESENTER

 

Soybean Response to Dicamba in Plot-Scale Furrow Irrigation Water. C. D. Willett*, E. M. Grantz, J. Lee, E. L. Archer, R. T. Grewe, J. K. Norsworthy; University of Arkansas, Fayetteville, AR (163)

 

Dynamics of Fusarium verticillioides after Herbicide Treatment on Maize Stubble. W. N. Braz, R. A. Guimarães, J. P. Silva, F. V. Medeiros, F. C. Medeiros*; Federal University of Lavras, Lavras, Brazil (164)

 

Rice Preemergence Herbicides Washoff from Ryegrass Straw Under Simulated Rainfall. M. Tomazetti, E. R. Camargo*, J. Gomes, L. Vieira, J. Refatti, V. Gehrke; Federal University of Pelotas, Pelotas, Brazil (165)

 

Relative Toxicity of Selected Organic and Conventional Herbicides to Worms. E. G. Mosqueda, A. T. Adjesiwor*, A. Kniss; University of Wyoming, Laramie, WY (166)

 

Effect of Bentazon and Iodosulfurom-Methyl on the Antioxidant Metabolism of Lotus corniculatus L. N. S. Correa1, F. Reolon*1, C. L. Moraes2, C. F. Larré1, D. M. Moraes1; 1Federal University of Pelota, Pelotas, Brazil, 2Federal University of Pelota, Pelotas, British Indian Ocean (167)




TUESDAY  MORNING    FEBRUARY 12

Section 13. Integrated Weed Management

 

*PRESENTER

 

Burning Sugarcane Residue: An Integrated Apporach for Managing Surface Deposited Divine Nightshade and Itchgrass Seed. D. J. Spaunhorst*; USDA-ARS, Houma, LA (168)

 

Control of Amaranthus palmeri Resistant to ALS and EPSP Inhibitors with Pre and Postemergence Herbicides in Intercropping of Corn and Marandu Grass. F. S. Ikeda*1, S. D. Cavalieri1, F. M. Lima Júnior2, L. H. Metz2, B. T. Fonseca2, F. Poltronieri2; 1Embrapa, Sinop, Brazil, 2Federal University of Mato Grosso, Sinop, Brazil (169)

 

Palmer Amaranth (Amaranthus palmeri) Control in XtendFlex and Enlist Cotton (Gossypium hirsutum). K. R. Russell*1, P. A. Dotray1, J. W. Keeling2; 1Texas Tech University, Lubbock, TX, 2Texas A&M AgriLife Research, Lubbock, TX (170)

 

Artificial Intelligence Based Semi-Automatic Herbicide Sprayer System. V. Singh*, A. Sosa, A. Gutierre, A. Knowlton, M. A. Acosta, J. Lusher, S. Kalafatis, M. V. Bagavathiannan; Texas A&M University, College Station, TX (171)

 

Evaluation of Remotely Piloted Aerial Application Systems (RPAAS) for Herbicide Application. V. Singh*1, M. Latheef2, D. Martin2, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2USDA-ARS, College Station, TX (172)

 

UAV-Based Imaging for Weed Identification in Row Crops. V. Singh*, B. B. Sapkota, M. Bishop, D. Cope, M. V. Bagavathiannan; Texas A&M University, College Station, TX (173)

 

Distribution of Herbicide Resistant Waterhemp (Amaranthus tuberculatus) Across Row Crop Production Systems in Texas. V. Singh*1, R. Garetson1, P. A. Dotray2, S. A. Nolte3, G. Morgan1, M. V. Bagavathiannan1, J. McGinty4; 1Texas A&M University, College Station, TX, 2Texas Tech University, Lubbock, TX, 3Texas A&M AgriLife Extension, College Station, TX, 4, College Station, TX (174)

 

Multiple Herbicide Resistant Ragweed Parthenium (Parthenium hysterophorus L.) Confirmed in Texas, USA. S. Singh*1, V. Singh1, N. Subramanian1, J. McGinty2, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2, College Station, TX (175)

 

Distribution of Herbicide Resistant Palmer Amaranth (Amaranthus palmeri) in Row Crop Production Systems in Texas. V. Singh*1, R. Garetson1, P. A. Dotray2, M. V. Bagavathiannan1, S. Singh1; 1Texas A&M University, College Station, TX, 2Texas Tech University, Lubbock, TX (176)

 

"GROW": A Science Based Resource Tool for Integrated Weed Management. C. G. Rubione*1, M. J. VanGessel1, M. L. Flessner2, S. B. Mirsky3, M. V. Bagavathiannan4, L. M. Lazaro5, K. B. Pittman2; 1University of Delaware, Georgetown, DE, 2Virginia Tech, Blacksburg, VA, 3USDA-ARS, Beltsville, MD, 4Texas A&M University, College Station, TX, 5Louisiana State University AgCenter, Baton Rouge, LA (177)

 

Understanding Cover Crop Effects on Weed Size Inequality at Time of Herbicide Exposure. J. M. Wallace*1, W. S. Curran2, D. Mortensen1; 1Penn State University, University Park, PA, 2Penn State University, Bozeman, MT (178)

 

Crop Rotation Influence on Maize Productivity and Weeds. M. Z. Brankov*1, G. Kruger2, V. D. Dragicevic1, M. S. Simic1; 1Maize Research Institute, Belgrade, Serbia, 2University of Nebraska-Lincoln, North Platte, NE (179)

 

Action Mechanism of Bleaching Herbicide Cyclopyrimorate: A Novel Homogentisate Solanesyltransferase Inhibitor. T. Hamada*, M. Shino, Y. Shigematsu, K. Hirase, S. Banba; Mitsui Chemicals Agro, Inc., Mobara-shi, Chiba, Japan (180)

 

Active Ingredient Effects on Italian Ryegrass (Lolium multiflorum) Control in Mississippi Corn (Zea mays L.). M. T. Wesley*1, J. A. Bond2, D. B. Reynolds3, E. J. Larson4, J. Ferguson3; 1Mississippi State University, MS State, MS, 2Delta Research and Extension Center, Stoneville, MS, 3Mississippi State University, Mississippi State, MS, 4Mississippi State University, Starkville, MS (181)

 

On a Knife Edge: Conservation Agriculture and Troublesome Weed Control. A. Price*; USDA-ARS, Auburn, AL (182)

 

Evaluation and Characterization of a Propane Based Flaming System for Weed Control in Onion (Allium cepa). R. N. Lati*1, Z. Peleg2; 1Agricultural Research Organization, Newe Ya’ar Research Center, Kfar Tavor, Israel, 2The R.H. Smith Institute of Plant Science & Genetics in Agriculture, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel (183)

 

Herbicide Resistance Gene Flow in Weeds: Under-Estimated and Under-Appreciated. H. J. Beckie*1, R. Busi2, M. V. Bagavathiannan3; 1University of Western Australia, Crawley, WA, Australia, 2University Western Australia, CRAWLEY, Australia, 3Texas A&M University, College Station, TX (184)

 

Inhibitions of Pigweed (Amaranthus palmeri S.) Germination and Growth by Cover Crop Residues. A. Shekoofa*, S. Safikhan, T. Raper, L. E. Steckel, S. Butler, D. Copeland; University of Tennessee, Jackson, TN (185)




TUESDAY  MORNING    FEBRUARY 12

Global Perspective on Herbicides Being Banned

LOCATION:   Napoleon Ballroom B123
TIME:   8:00 AM - 2:00 PM
CHAIR:   Nilda Burgos
    University of Arkansas
    Fayetteville, AR
CO-CHAIR:   Carol Mallory-Smith
    Oregon State University
    Corvallis, OR
MODERATOR:   Carol Mallory-Smith
    Oregon State University
    Corvallis, OR

 

*SPEAKER

 

8:00   Herbicides at Risk: A Global Perspective. C. Mallory-Smith*1, N. R. Burgos2, C. Maneechote3; 1Oregon State University, Corvallis, OR, 2University of Arkansas, Fayetteville, AR, 3Department of Agriculture, Bankok, Thailand (186)

 

8:15   The Dose Makes the Poison: Exposure to Glyphosate. K. R. Solomon*; University of Guelph, Guelph, ON (187)

 

8:45   Environmental Fate and Ecological Impact of Glyphosate. S. O. Duke*; USDA-ARS-NPURU, Oxford, MS (188)

 

9:15   Glyphosate Ban in the EU - Consequences and Challenges. S. K. Mathiassen*, P. Kudsk; Aarhus University, Slagelse, Denmark (189)

 

9:45   Discussion

 

10:00   Break

 

10:15   The Banning of Bromacil in Costa Rica. B. E. Valverde*; Investigación y Desarrollo en Agricultura Tropical, Alajuela, Costa Rica (190)

 

10:45   A Overview of Pesticide Ban and Restricted Use in Brazil and South America. E. R. Camargo*1, L. A. Avila1, M. Zapiola2; 1Federal University of Pelotas, Pelotas, Brazil, 2Pontifical Catholic University of Argentina, buenos aires, Argentina (191)

 

11:15   Toxicology and the Impact of Paraquat Ban on Human Poisoning. D. KIM*; Seoul National University, Seoul, South Korea (192)

 

11:45   Ban of Herbicides: The Case of Glyphosate in Sri Lanka. B. Marambe*; University of Peradeniya, Peradeniya, Sri Lanka (193)

 

12:00   Lunch

 

1:00   Canceled Registration of Herbicides in Israel Affects Weed Distribution and Management. B. Rubin*1, H. Eizenberg2; 1Hebrew University of Jerusalem, Rehovot, Israel, 2Farmers Valley Center, Migdal Haemek, Israel (194)

 

1:15   Risk Analysis of Possible Glyphosate Ban in EU on Turkish Hazelnut Productions and Economy . H. Mennan*; Ondokuz Mayıs University, ATAKUM, Turkey (195)

 

1:30   Discussion




TUESDAY  MORNING    FEBRUARY 12

Section 1. Agronomic Crops

LOCATION:   Borgne
TIME:   8:00 AM - 5:00 PM
CHAIR:   Neha Rana
    Bayer CropScience
    St Louis, MO
CO-CHAIR:   Ryan Lins
    Syngenta Crop Protection
    Rochester, MN
MODERATOR:   Neha Rana
    Bayer CropScience
    St Louis, MO

 

*SPEAKER

 

8:00   The Goosegrass (Eleusine indica) Genome Resolves Homeologous Gene Relationships within Allotetraploid Crop Plan African Finger Millet (Eleusine coracana). N. Hall*, J. D. Patel, J. S. McElroy, L. R. Goertzen; Auburn University, Auburn, AL (196)

 

8:15   Critical Time for Weed Removal in Corn and Soybean as Influenced by Pre-Herbicides. S. Z. Knezevic*1, O. Osipitan2, J. E. Scott2; 1University of Nebraska-Lincoln, Lincoln, NE, 2University of Nebraska-Lincoln, Concord, NE (197)

 

8:30   Improving Mesosulfuron Methyl Performance in Winter Wheat. M. D. Anderson*1, J. McGregor2; 1BAYER CROPSCIENCE, Spangle, WA, 2, Research Triangle Park, NC (198)

 

8:45   Seeding Rate, Row Spacing and Herbicide Effects on Weed Control in Pinto Bean. D. W. Morishita*, K. D. LeQuia; University of Idaho, Kimberly, ID (199)

 

9:00   Horseweed (Conyza canadensis L.) Management in Oklahoma Winter Wheat. M. Manuchehri*1, J. A. Crose1, T. A. Baughman2, J. Childers1, V. Kumar3; 1Oklahoma State University, Stillwater, OK, 2Oklahoma State University, Ardmore, OK, 3Kansas State University, Hays, KS (200)

 

9:15   Management of Grass Weed Species with Soil-Applied Herbicides in Cool-Season Grasses Grown for Seed. A. G. Hulting*1, D. W. Curtis2, K. C. Roerig2, C. Mallory-Smith2; 1OREGON STATE UNIVERSITY, Corvallis, OR, 2Oregon State University, Corvallis, OR (201)

 

9:30   Optimizing Chloroacetamide Placement in Cotton Production Systems. S. Davis*1, D. Dodds2, L. X. Franca2, J. P. McNeal3, B. Norris1, J. J. Williams1; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS, 3Mississippi State University, Mississippi State, Mississippi, MS (202)

 

9:45   Developing a Laser Weeding Robot for Weed Control in Broad-Scale Production Systems. G. R. Coleman*, M. J. Walsh; University of Sydney, Narrabri, Australia (203)

 

10:00   Break

 

10:15   Impact of Increasing Levels of Irrigation on Weed Control and Corn Yield with and Without a Wheat Cover Crop. R. Currie*, P. Geier; Kansas State University, Garden City, KS (204)

 

10:30   Weed Stress Effects of Cover Crops in Early Corn Growth Stages. J. M. Miller*, S. A. Clay, D. E. Clay, G. Reicks, D. Joshi; South Dakota State University, Brookings, SD (205)

 

10:45   The Impact of Cover Crop Biomass and C:N Ratio on Early-Season Weed Suppression. K. B. Pittman*, J. Barney, M. L. Flessner; Virginia Tech, Blacksburg, VA (206)

 

11:00   Cover Crop Response to Residual Herbicides in Peanut and Cotton Rotation. K. J. Price*1, S. Li1, A. Price2; 1Auburn University, Auburn, AL, 2USDA-ARS, Auburn, AL (207)

 

11:15   Implications of Narrow Crop Row Spacing and Delayed Avena Fatua and Avena Ludoviciana Emergence for Weed Growth and Seed Production in Wheat. B. S. Chauhan*, G. Mahajan; The University of Queensland, Gatton, Australia (208)

 

11:30   On-farm Assessment of Weed Management and Productivity of Dry-seeded Rice in the Irrigated Rice-Wheat Cropping System. M. S. Bhullar*1, N. Dhaliwal2, J. Grover3, K. Kaur4, A. Kaur5, M. Singh6, S. Chopra7, H. Singh8, M. Kaur1; 1Punjab Agricultural University, Ludhiana, India, 2Punjab Agricultural University, Sri Muktsar Sahib, India, 3Punjab Agricultural University, Faridkot, India, 4Punjab Agricultural University, Amritsar, India, 5Punjab Agricultural University, Moga, India, 6Punjab Agricultural University, Sangrur, India, 7Punjab Agricultural University, Gurdaspur, India, 8Punjab Agricultural University, Fatehgarh sahib, India (209)

 

11:45   Lunch

 

1:00   Influence of Carrier Volume, Nozzle Type, and Weed Size on Glufosinate Efficacy. J. Calhoun*1, D. B. Reynolds2; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS (210)

 

1:15   Glufosinate-Resistant Italian Ryegrass from Oregon: Role of Glutamine Synthetase Isoforms and Herbicide Metabolism in the Resistance Mechanism. C. A. Brunharo*1, H. K. Takano2, C. Mallory-Smith1, F. E. Dayan3, B. Hanson4; 1Oregon State University, Corvallis, OR, 2Colorado State University, Ft Collins, CO, 3Colorado State University, Fort Collins, CO, 4University of California, Davis, Winters, CA (211)

 

1:30   Control of Common Lambsquarters and Velvetleaf by Tank-Mixing Glufosinate and Fluthiacet-Methyl in Glufosinate-Resistant Soybean. P. Chahal, A. J. Jhala*; University of Nebraska-Lincoln, Lincoln, NE (212)

 

1:45   Characterization of Palmer Amaranth with Reduced Sensitivity to S-metolachlor. C. Brabham*, J. K. Norsworthy, M. M. Houston; University of Arkansas, Fayetteville, AR (213)

 

2:00   Status of Multiple Herbicide-Resistant Palmer Amaranth in Kansas. V. Kumar*1, R. Liu1, T. Lambert2, D. Peterson3; 1Kansas State University, Hays, KS, 2Kansas State University, hays, KS, 3Kansas State University, Manhattan, KS (214)

 

2:15   Influence of Sequence and Timing of Synthetic Auxins and Glufosinate on Large Palmer Amaranth Control. F. B. Browne*, S. Li, K. J. Price; Auburn University, Auburn, AL (215)

 

2:30   Multiple Herbicide-Resistant Horseweed (Conyza canadensis L. Cronq.) and Waterhemp (Amaranthus tuberculatus Moq. J. D. Sauer) Dose Response to Tolpyralate and Tolpyralate Plus Atrazine. B. A. Metzger*1, A. J. Raeder2, D. Hooker3, D. Robinson4, P. Sikkema4; 1University of Guelph, Wallenstein, ON, 2ISK Biosciences, Concord, OH, 3University of Guelph, Ridge, ON, 4University of Guelph, Ridgetown, ON (216)

 

2:45   Predicting the Relative Long-Term Effectiveness of Herbicide Programs Using Syngenta's Resistance Fighter Model. R. Wuerffel*1, C. L. Dunne2, E. Parker1, E. Palmer3, D. L. Bowers4, D. Kaundun5, C. Liu5; 1Syngenta, Vero Beach, FL, 2Syngenta Crop Protection, Vero Beach, FL, 3Syngenta Crop Protection, Greensboro, NC, 4Syngenta, Greensboro, NC, 5Syngenta, Braknell, England (217)

 

3:00   Break

 

3:15   Economic Implications of Herbicide Resistant Weed Management in Glyphosate-Resistant Sugarbeet. A. T. Adjesiwor*1, N. C. Lawrence2, P. Jha3, T. Gaines4, E. Westra4, A. Kniss1; 1University of Wyoming, Laramie, WY, 2University of Nebraska-Lincoln, Pullman, WA, 3Montana State University, Huntley, MT, 4Colorado State University, Fort Collins, CO (218)

 

3:30   Efficacy and Economic Comparison of Enlist, Xtend and Liberty Based Weed Control Systems in Cotton. S. A. Nolte*1, R. Vulchi2, M. Matocha3, G. Morgan2, J. McGinty4; 1Texas A&M AgriLife Extension, College Station, TX, 2Texas A&M University, College Station, TX, 3Texas AgriLife Extension Service, College Station, TX, 4, College Station, TX (219)

 

3:45   Investigation of Conyza canadensis Control in Kentucky No-Till Soybean Across Three Herbicide Resistant Soybean Varieties. T. R. Legleiter*1, J. Green2; 1University of Kentucky, Princeton, KY, 2University of Kentucky, Lexington, KY (220)

 

4:00   On-Farm Evaluations of Auxin Nozzles for Peanut Pest Management. E. P. Prostko*1, M. R. Abney2, R. C. Kemerait2, G. C. Rains2, J. L. Jacobs3, C. T. Powell4, W. G. Tyson5; 1University of Georgia, Tifton, GA, 2The University of Georgia, Tifton, GA, 3The University of Georgia, Blackshear, GA, 4The University of Georgia, Colquitt, GA, 5The University of Georgia, Statesboro, GA (221)

 

4:15   Gramoxone Magnum: A New Option for Burndown and Residual Control . R. Lins*1, M. Saini2, D. L. Bowers3; 1Syngenta Crop Protection, Rochester, MN, 2Syngenta Crop Protection, Greensboro, NC, 3Syngenta, Greensboro, NC (222)

 

4:30   Research Results on a Future Residual Herbicide for Dicamba-Tolerant Soybeans. C. Asmus*1, K. E. Keller2; 1BASF, Raleigh, NC, 2BASF, Rougemont, NC (223)




TUESDAY  MORNING    FEBRUARY 12

Section 5. Wildland and Aquatic Invasive Plants

LOCATION:   Maurepas
TIME:   8:00 AM - 11:30 AM
CHAIR:   Christopher Mudge
    U.S. Army Engineer Research and Development Center
    Baton Rouge, LA
CO-CHAIR:   Mark Renz
    University of Wisconsin
    Madison, WI
MODERATOR:   Christopher Mudge
    U.S. Army Engineer Research and Development Center
    Baton Rouge, LA

 

*SPEAKER

 

8:00   Federal Research and its Linkage with the USEPA Aquatic Herbicide Registration Process. K. D. Getsinger*1, C. R. Mudge2, B. T. Sartain1, M. Netherland3; 1U.S. Army Engineer Research and Development Center, Vicksburg, MS, 2U.S. Army Engineer Research and Development Center, Baton Rouge, LA, 3University of Florida, Gainesville, FL (224)

 

8:15   Concentration and Exposure Time Requirements of Florpyrauxifen-Benzyl for Managing Invasive Aquatic Plants. C. R. Mudge*1, K. D. Getsinger2, B. T. Sartain2, M. Netherland3; 1U.S. Army Engineer Research and Development Center, Baton Rouge, LA, 2U.S. Army Engineer Research and Development Center, Vicksburg, MS, 3University of Florida, Gainesville, FL (225)

 

8:30   Field Demonstrations of Selective Control of Major US Aquatic Invasive Plants using ProcellaCOR (a.i., florpyrauxifen-benzyl). M. A. Heilman*1, K. D. Getsinger2, D. Jones3, J. Ferrell4; 1SePRO, Carmel, IN, 2U.S. Army Engineer Research and Development Center, Vicksburg, MS, 3University of Florida, Lake Alfred, FL, 4University of Florida, Gainesville, FL (226)

 

8:45   Herbicide Trials with Brazilian Egeria (Egeria densa) for Management in the Sacramento / San Joaquin River Delta. J. D. Madsen*; USDA-ARS, Woodland, CA (227)

 

9:00   Evaluation of Metsulfuron-Methyl for Controlling Giant Salvinia. W. J. Prevost*1, C. R. Mudge2; 1Louisiana State University, Baton Rouge, LA, 2U.S. Army Engineer Research and Development Center, Baton Rouge, LA (228)

 

9:15   Does Giant Salvinia Impact Aerial Colonization of Aquatic Insects? C. Wahl*; Louisiana State University AgCenter, BATON ROUGE, LA (229)

 

9:30   Challenges and Opportunities for Biological Control of Non-Native Weeds in Louisiana. R. R. Diaz*1, V. Manrique2, M. B. Rayamajhi3, C. Wahl4, R. Watson1; 1Louisiana State University, Baton Rouge, LA, 2Southern University and A&M College, Baton Rouge, Baton Rouge, LA, 3USDA, Cooper City, FL, 4Louisiana State University AgCenter, BATON ROUGE, LA (230)

 

9:45   Is Biological Control Method a Viable Option for Invasive Weed Management? Recent Examples from Florida. M. B. Rayamajhi*; USDA, Cooper City, FL (231)

 

10:00   Break

 

10:15   Evaluation of Improved Herbicidal Techniques for Crested Floating Heart (Nymphoides cristata) Management. R. Richardson*; North Carolina State University, Raleigh, NC (232)

 

10:30   Management of Problematic Native Aquatic Vegetation to Enhance Multi-User Benefits in Southeastern Waterbodies. K. L. Calhoun*, G. N. Ervin, L. G. Turnage; Mississippi State University, Starkville, MS (233)

 

10:45   Can Seawater be Used for Selective Management of Brazilian Peppertree in Mangrove Communities? S. F. Enloe*, C. C. Jacono; University of Florida, Gainesville, FL (234)

 

11:00   Development of an Autonomous Application System for Aquatic Plant Management. R. Richardson*1, S. Hoyle1, J. Nawrocki2; 1North Carolina State University, Raleigh, NC, 2UPI, Inc., Raleigh, NC (235)

 

11:15   Bio-Economic Models Prioritizing East Maui Watershed Protection Against Miconia Invasion. J. J. Leary*1, N. A. Jorgensen2, M. Renz3, K. Burnett4, C. Wada4, B. V. Mahnken5; 1University of Florida- Institute of Food and Agricultural Sciences, Gainesville, FL, 2University of Wisconsin-Madison, Madison, WI, 3University of Wisconsin, Madison, WI, 4University of Hawaii-Manoa, Honolulu, HI, 5University of Hawaii-Manoa, Makawao, HI (236)




TUESDAY  MORNING    FEBRUARY 12

Section 4. Pasture, Rangeland, Forest, and Rights of Way

LOCATION:   Maurepas
TIME:   11:30 AM - 12:00 PM
CHAIR:   Joseph Omielan
    University of Kentucky
    Lexington, KY
CO-CHAIR:   Lisa Obear
    University of Nebraska-Lincoln
    Fort Atkinson, WI
MODERATOR:   Christopher Mudge
    U.S. Army Engineer Research and Development Center
    Baton Rouge, LA

 

*SPEAKER

 

11:30   A Low Cost Individual Plant Applicator. J. D. Byrd, Jr.*; Mississippi State University, Mississippi State, MS (237)

 

11:45   Comparison of Herbicide Options for Guardrails and Cable Barriers. J. Omielan*; University of Kentucky, Lexington, KY (238)




TUESDAY  MORNING    FEBRUARY 12

PhD Student Oral Contest Session I

LOCATION:   Napoleon Ballroom A2
TIME:   10:00 AM - 5:00 PM
CHAIR:   Stephen Schraer
    Syngenta
    Meridian, ID
CO-CHAIR:   Darrin Dodds
    Mississippi State University
    Mississippi State, MS
MODERATOR:   Stephen Schraer
    Syngenta
    Meridian, ID

 

*SPEAKER     † STUDENT CONTEST

 

10:00   †Are Non-Synthetic Herbicides Useful for Weed Control in Rice? S. Abugho*1, A. V. Pagenotto2, X. Zhou3, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2University of Sao Paulo, Sao Paulo, Brazil, 3Texas A&M University, Beaumont, TX (239)

 

10:15   Efficacy of Trifludimoxazin Alone and in Combination with Glufosinate, Glyphosate, Paraquat, and Saflufenacil on Emerged Tall Waterhemp (Amaranthus tuberculatus). N. R. Steppig*1, S. Willingham2, D. M. Whalen3, B. G. Young4; 1Purdue University, Lafayette, IN, 2BASF, Seymour, IL, 3University of Missouri, Columbia, MO, 4Purdue University, Brookston, IN (240)

 

10:30   †Integrated Weed Management Systems to Control Common Ragweed in Virginia Soybean. S. C. Beam*1, M. L. Flessner2; 1Virginia Tech, Concord, NC, 2Virginia Tech, Blacksburg, VA (241)

 

10:45   Cotton (Gossypium hirsutum) Defoliation as Affected by Droplet Size and Carrier Volume. J. P. McNeal*1, D. Dodds2, G. Kruger3, S. Davis4, L. X. Franca2, B. Norris4, J. J. Williams4; 1Mississippi State University, Mississippi State, Mississippi, MS, 2Mississippi State University, Mississippi State, MS, 3University of Nebraska-Lincoln, North Platte, NE, 4Mississippi State University, Starkville, MS (242)

 

11:00   †Antioxidant Responses to Weed Competition in Arabidopsis and Maize. N. Berardi*, C. J. Swanton, S. Amirsadeghi; University of Guelph, Guelph, ON (243)

 

11:15   †Phytochemical Characterixzation and Bio-Herbiciddal Potential of Lantana Camara L. against Selected Weeds of Wheat Crop. T. Anwar*1, N. Ilyas1, R. Qureshi1, M. Khan Panni2; 1Pir Mehr Ali Shah Arid Agriculture University, Shamsabad, Murree Road, Rawalpindi,, Pakistan, 22Bioactive Natural Products and Phytoceuticals Laboratory, Plant and Soil Building, Michigan State University, East Lansing, MI (244)

 

11:30   †Ecosystem Services Provided by Cover Crops Interseeded in Corn. A. P. Brooker*1, K. Renner2, C. Sprague2, L. Tiemann2; 1Michigan State University, Haslett, MI, 2Michigan State University, East Lansing, MI (245)

 

11:45   †Physiological Basis for the Contact Activity of Glufosinate. H. K. Takano*1, R. S. Beffa2, C. Preston3, P. Westra4, F. E. Dayan4; 1Colorado State University, Ft Collins, CO, 2Bayer Crop Science, Frankfort / Main, Germany, 3University of Adelaide, Glen Osmond, Australia, 4Colorado State University, Fort Collins, CO (246)

 

12:00   Lunch

 

1:00   †Cereal Rye Cover Crop and Herbicide Application Method Impacts Cotton Stand, Palmer Amaranth Control, and Yield. L. C. Hand*1, R. L. Nichols2, T. M. Webster3, A. S. Culpepper4; 1University of Georgia, Tifton, GA, 2Cotton Incorporated, Cay, NC, 3USDA-ARS, Tifton, GA, 4University of Georgia, Tifton, GA (247)

 

1:15   †Prediction of PPO-Inhibitor Resistance Risk through Genomic Analysis. A. L. Barker*, F. E. Dayan; Colorado State University, Fort Collins, CO (248)

 

1:30   †Tradeoffs between Planting Date, Cover Crop Biomass, and Weed Suppression in an Organic No-till System Using Tarps. N. P. Lounsbury*, R. G. Smith; University of New Hampshire, Durham, NH (249)

 

1:45   †Isoleucine to Leucine Amino Acid Substitution in Plastidic ACCase Confers Resistance to Pinoxaden Herbicide in Southern Crabgrass (Digitaria ciliaris). S. Basak*1, B. Bi1, A. M. Brown1, P. McCullough2, J. S. McElroy1; 1Auburn University, Auburn, AL, 2University of Georgia, Griffin, GA (250)

 

2:00   †Impact of Crop Rotation, Tillage, and Herbicide Treatment on R:S Ratio of ALS-Resistant Kochia After Four Years. E. G. Mosqueda*1, A. Kniss1, N. C. Lawrence2, P. Jha3, G. Sbatella4; 1University of Wyoming, Laramie, WY, 2University of Nebraska-Lincoln, Pullman, WA, 3Montana State University, Huntley, MT, 4University of Wyoming, Powell, WY (251)

 

2:15   †Target-Site Mutation in Conyza canadensis Biotypes with Extreme Resistance to Glyphosate in Ohio and Iowa, USA. Z. T. Beres*1, L. A. Giese1, D. M. Mackey1, M. D. Owen2, E. R. Page3, A. Snow4; 1Ohio State University, Columbus, OH, 2Iowa State University, Ames, IA, 3Agriculture and Agri-Food Canada, Harrow, ON, 4Ohio State University, Dept of EEOB, Columbus, OH (252)

 

2:30   †Fertilizer Placements Affect Weed Growth and Reproduction in Nursery Container Production. D. Saha*1, C. Marble2, A. Chandler1; 1Mid-Florida Research and Education Center, University of Florida, Apopka, FL, 2University of Florida, Apopka, FL (253)

 

2:45   †Single Nucleotide Polymorphism in Plastid Protoporphyrinogen Oxidase Gene (PPO1) Confers Resistance to Oxidiazon in Eleusine indica. B. Bi*1, Q. Wang1, J. J. Coleman1, J. S. McElroy1, J. M. Peppers2, N. Hall1; 1Auburn University, Auburn, AL, 2Auburn University, auburn, AL (254)

 

3:00   Break

 

3:15   †Evaluation of the Suitability of 13 Summer Cover Crop Species for Southeast Texas. S. L. Samuelson*, M. V. Bagavathiannan; Texas A&M University, College Station, TX (255)

 

3:30   †Investigation of Metabolism Associated with Quizalofop Resistance in CoAXium Wheat. R. A. Bough*, F. E. Dayan, T. Gaines; Colorado State University, Fort Collins, CO (256)

 

3:45   Assessing Dicamba Injury Across Different Soybean Varieties and Maturity Groups. E. A. Jones*1, W. Everman1, J. Sanders2, D. J. Contreras1, M. A. Granadino1; 1North Carolina State University, Raleigh, NC, 2North Carolina State University, Holly Springs, NC (257)

 

4:00   †Genetic Diversity and Molecular Markers for Abiotic Stress Tolerance in Weedy Rice. S. D. Stallworth*1, T. Tseng1, S. Shrestha2, B. C. Schumaker2; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, Starkville, MS (258)

 

4:15   Leptochloa acuminata Clomazone Metabolism in California Rice. K. E. Driver*1, C. A. Brunharo2, A. Godar1, K. Al-Khatib1; 1University of California, Davis, Davis, CA, 2Oregon State University, Corvallis, OR (259)

 

4:30   †Metabolic Resistance to S-metolachlor in Two Multiple Herbicide-Resistant Waterhemp Populations from Illinois. S. Strom*1, L. Gonzini1, C. Mitsdarfer1, A. S. Davis2, D. E. Riechers3, A. Hager1; 1University of Illinois, Urbana, IL, 2N-319 Turner Hall, Urbana, IL, 3, Urbana, IL (260)

 

4:45   †Investigating Cross-Resistance to the Synthetic Auxins Fluroxypyr and Dicamba in Kochia Scoparia. O. E. Todd*1, T. Gaines1, D. Pettinga2, P. Westra1; 1Colorado State University, Fort Collins, CO, 2Colorado State University, fort collins, CO (261)




TUESDAY  MORNING    FEBRUARY 12

PhD Student Oral Contest Session II

LOCATION:   Napoleon Ballroom A3
TIME:   10:15 AM - 5:00 PM
CHAIR:   Stephen Schraer
    Syngenta
    Meridian, ID
CO-CHAIR:   Darrin Dodds
    Mississippi State University
    Mississippi State, MS
MODERATOR:   Stephen Schraer
    Syngenta
    Meridian, ID

 

*SPEAKER     † STUDENT CONTEST

 

10:15   †A Novel Kentucky Adapted Red Clover Line Displays Increased 2,4-D Tolerance. L. P. Araujo*, M. Barrett, T. Pfeiffer, L. D. Williams, G. Olson; University of Kentucky, Lexington, KY (262)

 

10:30   †Integrating Crop Rotation and Herbicide Programs to Control Kochia and Palmer Amaranth in Sugarbeet. C. W. Beiermann*1, N. C. Lawrence2; 1University of Nebraska-Lincoln, Scottsbluff, NE, 2University of Nebraska-Lincoln, Pullman, WA (263)

 

10:45   †Comparison of Soybean Injury and Yield Response to Low-dose Dicamba Particle Drift and Vapor. F. B. Browne*, S. Li, K. J. Price; Auburn University, Auburn, AL (264)

 

11:00   †Palmer Amaranth Growth and Fecundity in Competition with Various Row Crops in North Carolina. D. J. Mahoney*1, D. Jordan2, A. T. Hare2, N. R. Burgos3, K. M. Jennings2, R. Leon2, M. C. Vann2; 1North Carolina State University, Cary, NC, 2North Carolina State University, Raleigh, NC, 3University of Arkansas, Fayetteville, AR (265)

 

11:15   †Evaluating Effectiveness of Dicamba Removal from Contaminated Sprayers Following Various Incubation Periods from Contamination to Clean Out. Z. A. Carpenter*, D. B. Reynolds, A. B. Johnson; Mississippi State University, Mississippi State, MS (266)

 

11:30   †Response of White and Yellow Popcorn Hybrids to Pre- and Post-Emergence Herbicides. E. R. Barnes*1, N. C. Lawrence2, S. Z. Knezevic1, O. R. Rodriguez3, S. Irmak1, A. J. Jhala1; 1University of Nebraska-Lincoln, Lincoln, NE, 2University of Nebraska-Lincoln, Pullman, WA, 3Conagra Foods, Inc, Brookston, IN (267)

 

11:45   †2,4-D Metabolic Resistance in Waterhemp (Amaranthus tuberculatus). M. Figueiredo*1, A. Kuepper2, D. Giacomini3, M. Jugulam4, G. Kruger5, P. Tranel6, F. E. Dayan1, P. Westra1, T. Gaines1; 1Colorado State University, Fort Collins, CO, 2Bayer Crop Science, Frankfurt, Germany, 3University of Illinois, Urbana, IL, 4Kansas State University, Manhattan, KS, 5University of Nebraska-Lincoln, North Platte, NE, 6University of Illinois, Urbana, IL (268)

 

12:00   Lunch

 

1:00   †Bicyclopyrone Efficacy in Sweet Corn. T. L. Burke*, R. Zuger, I. C. Burke; Washington State University, Pullman, WA (269)

 

1:15   †Can Off-target Movement of Dicamba be Reduced with See & Spray Technology? Z. D. Lancaster*1, J. K. Norsworthy1, J. T. Richburg2, T. Barber3; 1University of Arkansas, Fayetteville, AR, 2University or Arkansas, Fayetteville, AR, 3University of Arkansas, Lonoke, AR (270)

 

1:30   †Evaluation of Herbicide Options for Cover Crop Termination. W. C. Greene*1, M. L. Flessner2, K. B. Pittman2, K. W. Bamber2, L. S. Rector2, C. W. Cahoon3; 1Virginia Tech, Virginia Tech, VA, 2Virginia Tech, Blacksburg, VA, 3Virginia Tech, Painter, VA (271)

 

1:45   †2,4-D Amine and 2,4-D Butoxyethyl Ester Behavior in Eurasian and Hybrid Watermilfoil. M. F. Ortiz*1, M. Figueiredo1, S. J. Nissen1, F. E. Dayan1, R. M. Wersal2, W. Ratajczyk2; 1Colorado State University, Fort Collins, CO, 2Lonza, Alpharetta, GA (272)

 

2:00   †Florpyrauxifen-benzyl Activity on Common Aquatic Weeds in Louisiana Rice. S. Rustom*1, E. P. Webster1, B. McKnight1, D. C. Walker1, C. Webster2; 1Louisiana State University, Baton Rouge, LA, 2Louisiana State University, Baton Rouge, AL (273)

 

2:15   †How does Temperature Rise and Bacillus sp. Inoculation Affect Germination and Establishment of Native and Invasive Species within Riparian Forest? O. Cano*1, G. Muro-Pérez2, J. Sánchez-Salas3, J. Sáenz-Mata3, E. Jurado4, J. Flores5; 1Biological Sciences Faculty - UJED, Lerdo, Mexico, 2Biological Sciences Faculty - UJED, Gomez Palacio, Mexico, 3Biological Sciences Faculty - UJED, Gómez Palacio, Mexico, 4Forestry Sciences Faculty - UANL, Linares, Mexico, 5Environmental Sciences Division - IPICYT, San Luis Potosi, Mexico (274)

 

2:30   †Response of Sweetpotato to Fluridone Alone or in Combination with Flumioxazin Followed by S-metolachlor. S. C. Smith*, K. M. Jennings, S. Chaudhari, D. Monks; North Carolina State University, Raleigh, NC (275)

 

2:45   †Modeling Flooding and Burial Effects on the Emergence of 5 California Weedy Rice Biotypes. L. B. Galvin*1, M. B. Mesgaran2, K. Al-Khatib1, W. B. Brim-DeForest3; 1University of California, Davis, Davis, CA, 2University of California, Davis, CA, 3University of California, Davis, Yuba City, CA (276)

 

3:00   Break

 

3:15   †Persistence of Atrazine, Topramezone and Mesosulfuron-methyl in Different North Carolina Soil Types: the First Step in Investigating the Potential for Herbicide Carryover Damage to Soybean (Glycine max) Crop. S. S. Ramanathan*1, T. Gannon1, A. Locke2, W. Everman1; 1North Carolina State University, Raleigh, NC, 2USDA-ARS and North Carolina State University, Raleigh, NC (277)

 

3:30   †A Mechanistic Framework to Explain Yield Loss in Corn (Zea mays L.) Caused by Early Season Stress. H. Gonzalez*, E. A. Lee, L. Lukens, C. J. Swanton; University of Guelph, Guelph, ON (278)

 

3:45   †Estimating Standing Biomass of an Invasive Plant using sUAS. A. Howell*1, R. Richardson2; 1North Carolina State University, Sanford, NC, 2North Carolina State University, Raleigh, NC (279)

 

4:00   †Evaluation of Seed Dormancy in Ryegrass (Lolium spp.) Accessions Collected from Texas Blacklands. A. Maity*1, S. Abugho1, V. Singh1, N. Subramanian1, G. R. Smith2, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2Texas A&M University, Overton, TX (280)

 

4:15   †Interaction of Lactofen with Glyphosate or Glufosinate for Weed Control as Affected by Adjuvants and Droplet Size. J. Gizotti de Moraes*, C. Chiaranda Rodrigues, B. Vukoja, G. Kruger; University of Nebraska-Lincoln, North Platte, NE (281)

 

4:30   †Describing Phenology Patterns of Different Natural Cohorts of Sicklepod (Senna obtusifolia (L.) Irwin & Barneby) Using Sigmoidal Models. T. A. Reinhardt Piskackova*, K. M. Jennings, R. Richardson, C. Reberg-Horton, R. Leon; North Carolina State University, Raleigh, NC (282)

 

4:45   †Evaluation of Soybean Tolerance to Off-Target LoyantTM (florpyrauxifen-benzyl) Deposition. D. C. Walker*1, E. P. Webster1, D. O. Stephenson2, B. McKnight1, S. Rustom1, C. Webster3; 1Louisiana State University, Baton Rouge, LA, 2Louisiana State University AgCenter, Alexandria, LA, 3Louisiana State University, Baton Rouge, AL (283)




TUESDAY  MORNING    FEBRUARY 12

MS Student Oral Contest Session I

LOCATION:   Napoleon Ballroom C2
TIME:   10:15 AM - 4:00 PM
CHAIR:   Stephen Schraer
    Syngenta
    Meridian, ID
CO-CHAIR:   Darrin Dodds
    Mississippi State University
    Mississippi State, MS
MODERATOR:   Stephen Schraer
    Syngenta
    Meridian, ID

 

*SPEAKER     † STUDENT CONTEST

 

10:15   †Improving Selectivity of Physical Weed Control in Winter Squash:  Cultivation Tolerant Varieties and Traits. M. M. Benzle*, D. C. Brainard; Michigan State University, East Lansing, MI (284)

 

10:30   †Seed Production Potential Among Diverse Cytoplasmic Male Sterile Sorghum bicolor Genotypes Following Natural Pollination with S. halepense. C. Sias*, G. Hodnett, W. Rooney, M. V. Bagavathiannan; Texas A&M University, College Station, TX (285)

 

10:45   †Pollinator Use of Growing Season Cover Crops in an Agroecosystem. C. J. Bryan*, S. Sipes, L. Kassim, D. Gibson, D. Scott, K. L. Gage; Southern Illinois University, Carbondale, IL (286)

 

11:00   †Browntop Millet (Urochloa ramosa) and Broadleaf Signalgrass (Urochloa platyphylla) Competition Effects on Growth and Yield of Peanut (Arachis hypogaea) Managed with Prohexadione Calcium. Z. R. Treadway*1, J. Ferguson1, J. T. Irby1, B. Zurweller2, J. Gore3; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, Starkville, MS, 3Mississippi State University, Stoneville, MS (287)

 

11:15   †Optimizing Cover Crop and Herbicide Inputs for Weed Management in No-Till Corn and Soybean. J. M. Bunchek*1, J. M. Wallace2, W. S. Curran3, D. Mortensen2, M. J. VanGessel4, B. A. Scott4; 1Penn State University, State College, PA, 2Penn State University, University Park, PA, 3Penn State University, Bozeman, MT, 4University of Delaware, Georgetown, DE (288)

 

11:30   †Italian Ryegrass (Lolium multiflorum) Timing of Removal Effects on Corn (Zea mays L.) in Mississippi. M. T. Wesley*1, J. A. Bond2, D. B. Reynolds3, E. J. Larson4, J. Ferguson3; 1Mississippi State University, MS State, MS, 2Delta Research and Extension Center, Stoneville, MS, 3Mississippi State University, Mississippi State, MS, 4Mississippi State University, Starkville, MS (289)

 

11:45   †Pesticide Phytoremediation Potential of Southeastern US Terrestrial Plants: Iris versicolor, Panicum virgatum, and Andropogon virginicus. T. Gannon1, F. Yelverton1, A. M. McKnight*2; 1North Carolina State University, Raleigh, NC, 2North Carolina State University, Cary, NC (290)

 

12:00   Lunch

 

1:00   †Utilizing Geospatial Technology to Assess Off-target Dicamba Injury and Yield Loss in Missouri Soybean Fields. B. R. Dintelmann*1, S. T. Farrell2, K. Shannon2, M. Bish2, K. Bradley2; 1University of Missouri, Belleville, IL, 2University of Missouri, Columbia, MO (291)

 

1:15   †Surface and Living Mulches for Strip-Tilled Vegetable Production. J. J. Puka-Beals*1, G. G. Gramig2; 1North Dakota State University, Fargo, ND, 2NORTH DAKOTA STATE UNIVERSITY, Fargo, ND (292)

 

1:30   †Investigations of the Effects of Soil pH on the Volatility of Dicamba Formulations. E. G. Oseland*, M. Bish, K. Bradley; University of Missouri, Columbia, MO (293)

 

1:45   †Weed Suppression and Light Penetration in Standing and Rolled Cereal Rye and Wheat Cover Crop Residue. L. S. Rector*, M. L. Flessner, D. McCall, W. Thomason; Virginia Tech, Blacksburg, VA (294)

 

2:00   †Boll Distribution and Yield Response to Simulated Dicamba Drift on Non-Dicamba Tolerant Cotton (Gossypium hirsutum). K. R. Russell*, P. A. Dotray, G. L. Ritchie; Texas Tech University, Lubbock, TX (295)

 

2:15   †Examining Environmental Factors and Chemical Control Options for Juncus Species. Z. D. Small*1, J. D. McCurdy2, J. T. Brosnan3, J. D. Byrd, Jr.1, T. Tseng1, E. Reasor4, M. P. Richard5; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, Mississippi State University, MS, 3U of TN 252 Ellington Bldg, Knoxville, TN, 4PBI-Gordon Corporation, Shawnee, KS, 5Mississippi State University, Starkville, MS (296)

 

2:30   †Weedy Rice Genomic Regions Contributing to Allelopathy. B. C. Schumaker*1, T. Tseng2, S. Shrestha3, S. D. Stallworth2; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS, 3Texas A&M, College Station, TX (297)

 

2:45   †The Interaction of Plant Cutting and Burndown Herbicides on Horseweed Control To Improve Management in Double-Crop Soybeans Following Wheat. C. P. Carmody*1, K. L. Gage1, R. F. Krausz2; 1Southern Illinois University, Carbondale, IL, 2Southern Illinois University, Belleville, IL (298)

 

3:00   Break

 

3:15   †Comparison of Nozzle Type and Application Pressure on Weed Control in Peanut. K. L. Broster*1, J. Ferguson1, T. A. Baughman2, B. Zurweller3, B. Rushing4; 1Mississippi State University, Mississippi State, MS, 2Oklahoma State University, Ardmore, OK, 3Mississippi State University, Starkville, MS, 4Mississippi State University, Newton, MS (299)

 

3:30   †Scaling Up Brazilian Peppertree (Schinus terebinthifolia) IPT Research with Contractors in South Florida. M. E. Bell*; University of Florida, Gainesville, FL (300)

 

3:45   †Droplet Size Effects on Preemergence Herbicide Efficacy in Soybean. P. H. Urach Ferreira1, L. H. Merritt*2, D. B. Reynolds1, J. T. Irby1, G. Kruger3, J. Ferguson1; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, MS State, MS, 3University of Nebraska-Lincoln, North Platte, NE (301)




TUESDAY  MORNING    FEBRUARY 12

MS Student Oral Contest Session II

LOCATION:   Napoleon Ballroom C3
TIME:   10:15 AM - 2:30 PM
CHAIR:   Stephen Schraer
    Syngenta
    Meridian, ID
CO-CHAIR:   Darrin Dodds
    Mississippi State University
    Mississippi State, MS
MODERATOR:   Stephen Schraer
    Syngenta
    Meridian, ID

 

*SPEAKER     † STUDENT CONTEST

 

10:15   †Efficacy of HPPD-Inhibiting Herbicides Applied Preemergence or Postemergence for Control of Multiple Resistant Waterhemp (Amaranthus tuberculatus var. rudis). L. Benoit*1, P. Sikkema2, D. Hooker3, D. Robinson2; 1University of Guelph, Kirkton, ON, 2University of Guelph, Ridgetown, ON, 3University of Guelph, Ridge, ON (302)

 

10:30   †Out with the Old World Climbing Fern, in with the New: Evaluation of Florpyrauxifen-Benzyl and Triclopyr for Lygodium microphyllum Control in South Florida. J. S. Glueckert*1, S. F. Enloe2; 1University of Florida, Boynton Beach, FL, 2University of Florida, Gainesville, FL (303)

 

10:45   Physiological Parameters of Velvetleaf Under Normal and Elevated CO2 Treated with Tembotrione. J. C. Argenta*1, Q. Ruchel2, S. Finlayson1, T. Gentry1, M. V. Bagavathiannan1, K. Carson1; 1Texas A&M University, College Station, TX, 2Federal University of Pelotas, Pelotas, Brazil (304)

 

11:00   †PPO Arg128 Substitutions: What are the Options? K. Lillie*1, P. Tranel2, J. Lerchl3, A. Porri4; 1University of Illinois, Urbana, IL, 2University of Illinois, Urbana, IL, 3BASF SE, Limburgerhof, Germany, 4BASF SE, Ludwigshafen am Rhein, Germany (305)

 

11:15   †Is the Grass Greener?: Opting for Graminicides over Broad Spectrum Herbicides for West Indian Marsh Grass Control. K. H. Quincy*, S. F. Enloe; University of Florida, Gainesville, FL (306)

 

11:30   Accuracy and Efficiency of Herbicide applications of an Integrated System using an UAV-Sprayer and Remote Sensor-Generated Weed Map. J. E. Hunter*, R. E. Austin, R. Richardson, T. Gannon, J. Neal, R. Leon; North Carolina State University, Raleigh, NC (307)

 

11:45   †Interval Between Sequential Glufosinate Applications Influences Weed Control in Cotton. T. M. Randell*1, L. C. Hand1, J. C. Vance1, A. S. Culpepper2; 1University of Georgia, Tifton, GA, 2University of Georgia, Tifton, GA (308)

 

12:00   Lunch

 

1:00   †Weed Management in Isoxaflutole-Resistant Soybean Using a Two-Pass Herbicide Program. A. Smith*1, A. Kaastra2, D. Hooker3, D. Robinson4, P. Sikkema4; 1n/a, Ancaster, ON, 2Bayer CropScience, Guelph, ON, 3University of Guelph, Ridge, ON, 4University of Guelph, Ridgetown, ON (309)

 

1:15   Evaluation of Quizalofop Mixture Interactions with Reduced Rates of Halosulfuron in Provisia Rice. C. Webster*1, E. P. Webster2, B. McKnight2, S. Rustom2, D. C. Walker2; 1Louisiana State University, Baton Rouge, AL, 2Louisiana State University, Baton Rouge, LA (310)

 

1:30   †Variation in Herbicide Performance on Kalanchoe Control in Florida Dune Communities. J. Solomon*; University of Florida, Gainesville, FL (311)

 

1:45   †Evaluation of Early and Late-Season Marestail Management in Soybeans. H. Summers*1, D. Lingenfelter2, H. Karsten1; 1Pennsylvania State University, University Park, PA, 2Penn State University, University Park, PA (312)

 

2:00   The Effectiveness of Integrated Tactics for Managing Johnsongrass in Inzen Sorghum. B. L. Young*1, N. E. Korres2, L. M. Lazaro3, M. J. Walsh4, J. K. Norsworthy2, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2University of Arkansas, Fayetteville, AR, 3Louisiana State University AgCenter, Baton Rouge, LA, 4University of Sydney, Narrabri, Australia (313)

 

2:15   †Potential Safening of Topramezone on Creeping Bentgrass (Agrostis stolonifera L.)  with Additive Product Combinations. C. G. Goncalves*1, J. M. Peppers1, A. M. Brown2, J. S. McElroy2; 1Auburn University, auburn, AL, 2Auburn University, Auburn, AL (314)




TUESDAY  AFTERNOON    FEBRUARY 12

Section 3. Turf and Ornamental Crops

LOCATION:   Maurepas
TIME:   1:00 PM - 3:00 PM
CHAIR:   Prasanta Bhowmik
    University of Massachusetts
    Amherst, MA
CO-CHAIR:   Jatinder Aulakh
    The Connecticut Agricultural Experiment Station
    Windsor, CT
MODERATOR:   Prasanta Bhowmik
    University of Massachusetts
    Amherst, MA

 

*SPEAKER

 

1:00   Weed Control Efficacy and Christmas Tree Tolerance to Pre and Postemergence Herbicides. J. S. Aulakh*; The Connecticut Agricultural Experiment Station, Windsor, CT (315)

 

1:15   Deep Learning with Convolutional Neural Network: A Method for Precision Weed Control in Turfgrass. J. Yu*1, A. W. Schumann2, S. M. Shaun2, N. Boyd1; 1University of Florida, Balm, FL, 2University of Florida, Wimauma, FL (316)

 

1:30   Evaluation of Newly Established Buffalograss for Tolerance to Glyphosate. M. B. Bertucci*, D. Karcher, M. Richardson, D. OBrien; University of Arkansas, Fayetteville, AR (317)

 

1:45   Efficacy of Avenue South in Tall Fescue (Festuca arundinacea). J. Derr*, A. Nichols; Virginia Tech, Virginia Beach, VA (318)

 

2:00   Preemergence Control of Praxelis clematidea, an Emerging Weed in Florida Nurseries. C. Marble*1, N. Boyd2, S. T. Steed3; 1University of Florida, Apopka, FL, 2University of Florida, Balm, FL, 3University of Florida/IFAS Extension, Seffner, FL (319)

 

2:15   Greenhouse and Field Evaluation of Preemergence Herbicide Effects upon Native Warm Season Grass Establishment for Golf Course Roughs. M. P. Richard*1, J. D. McCurdy2, B. S. Baldwin1, J. I. Morrison3; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State University, MS, 3Mississippi State University, Mississippi State, MS (320)

 

2:30   Strategy for the Control of Panic Liverseedgrass (Urochloa panicoides) in Desert Turf. K. Umeda*; University of Arizona, Phoenix, AZ (321)

 

2:45   SwitchBlade™: A Non-2,4-D Option for Control of Weeds in Turfgrass. E. Reasor*1, J. W. Marvin2, B. A. Aynardi3, R. C. Williamson4; 1PBI-Gordon Corporation, Shawnee, KS, 2PBI-Gordon Corporation, Overland Park, KS, 3PBI-Gordon Corporation, State College, PA, 4PBI-Gordon Corporation, Defiance, OH (322)




TUESDAY  AFTERNOON    FEBRUARY 12

Weed Seed in Grain Samples and Trade

LOCATION:   Napoleon Ballroom B123
TIME:   3:15 PM - 4:45 PM
CHAIR:   Shawn Conley
    University of Wisconsin
    Madison, WI
CO-CHAIR:   Lee Van Wychen
    WSSA
    Alexandria, VA
MODERATOR:   Carroll Moseley
    Syngenta
    Greensboro, NC

 

*SPEAKER

 

3:15   National Overview of Weed Seeds and Phytosanitary Restrictions in Foreign Trade. R. Bishop*; USDA-APHIS, Fort Collins, CO (323)

 

3:30   Costs and Benefits of a 1% Cap on Foreign Material in US Soybean Exports. S. Naeve*; University of Minnesota, St. Paul, MN (324)

 

3:45   Eliminating Weed Seeds at Soybean Harvest: Lessons Learned from the Area-Wide IWM Team. S. B. Mirsky*1, J. K. Norsworthy2, A. S. Davis3, M. V. Bagavathiannan4, S. C. Beam5, J. A. Bond6, K. Bradley7, W. S. Curran8, J. Evans9, W. Everman10, M. L. Flessner5, G. Frisvold11, N. R. Jordan12, L. M. Lazaro13, J. Lindquist14, L. S. Shergill7, L. E. Steckel15, M. J. VanGessel16; 1USDA-ARS, Beltsville, MD, 2University of Arkansas, Fayetteville, AR, 3N-319 Turner Hall, Urbana, IL, 4Texas A&M University, College Station, TX, 5Virginia Tech, Blacksburg, VA, 6Delta Research and Extension Center, Stoneville, MS, 7University of Missouri, Columbia, MO, 8Penn State University, Bozeman, MT, 9Farmscape Analytics, Concord, NH, 10North Carolina State University, Raleigh, NC, 11University of Arizona, Tucson, AZ, 12University of Minnesota, St. Paul, MN, 13Louisiana State University AgCenter, Baton Rouge, LA, 14University of Nebraska, Lincoln, NE, 15University of Tennessee, Jackson, TN, 16University of Delaware, Georgetown, DE (325)

 

4:00   The Best-Laid Plans for Weeds by Man Sometimes Go Awry. A. Hager*; University of Illinois, Urbana, IL (326)

 

4:15   What Weed Seeds are Actually Found in Soybean Grain Samples in Louisiana. L. M. Lazaro*1, J. T. Copes2, D. O. Stephenson3, D. Miller4, A. Orgeron1; 1Louisiana State University AgCenter, Baton Rouge, LA, 2Louisiana State University AgCenter, Saint Joseph, LA, 3Louisiana State University AgCenter, Alexandria, LA, 4Louisiana State University AgCenter, St. Joseph, LA (327)

 

4:30   Weed Seeds, Phytosanitary Restrictions, and Trade Implications. L. Van Wychen*1, S. P. Conley2; 1WSSA, Alexandria, VA, 2University of Wisconsin, Madison, WI (328)




TUESDAY  AFTERNOON    FEBRUARY 12

IWSS General Session

LOCATION:   Oak Alley
TIME:   6:00 PM - 7:00 PM
CHAIR:   Nilda Burgos
    University of Arkansas
    Fayetteville, AR
MODERATOR:   Nilda Burgos
    University of Arkansas
    Fayetteville, AR

 

*SPEAKER



WEDNESDAY  MORNING    FEBRUARY 13

Section 1. Agronomic Crops

LOCATION:   Borgne
TIME:   8:00 AM - 10:00 AM
CHAIR:   Neha Rana
    Bayer CropScience
    St Louis, MO
CO-CHAIR:   Ryan Lins
    Syngenta Crop Protection
    Rochester, MN
MODERATOR:   Neha Rana
    Bayer CropScience
    St Louis, MO

 

*SPEAKER

 

8:00   The Effect of Multiple Dicamba Exposures on Soybean Growth and Yield. J. A. Bond1, K. Bradley2, N. Corbin3, K. L. Gage4, M. Loux5, E. J. Miller6, J. K. Norsworthy7, D. B. Reynolds*8, L. E. Steckel9, B. G. Young10; 1Delta Research and Extension Center, Stoneville, MS, 2University of Missouri, Columbia, MO, 3Mississippi State University, Stoneville, MS, 4Southern Illinois University, Carbondale, IL, 5Ohio State University, Columbus, OH, 6Southern Illionois University, Carbondale, IL, 7University of Arkansas, Fayetteville, AR, 8Mississippi State University, Mississippi State, MS, 9University of Tennessee, Jackson, TN, 10Purdue University, Brookston, IN (329)

 

8:15   Comparative Responses of Non-Dicamba Tolerant Soybean Varieties to Dicamba. O. Osipitan*1, J. E. Scott1, S. Z. Knezevic2; 1University of Nebraska-Lincoln, Concord, NE, 2University of Nebraska-Lincoln, Lincoln, NE (330)

 

8:30   Dicamba Durability in Roundup Ready® Xtend Crop System. N. Rana, S. Evans*; Bayer CropScience, St Louis, MO (331)

 

8:45   Effect of Carrier Volume and Spray Quality on Soybean Response to Dicamba. B. Sperry*1, J. Calhoun1, D. B. Reynolds2, J. Ferguson2, G. Kruger3; 1Mississippi State University, Starkville, MS, 2Mississippi State University, Mississippi State, MS, 3University of Nebraska-Lincoln, North Platte, NE (332)

 

9:00   Engenia Herbicide Research Update. C. Asmus*1, S. K. Bangarwa2; 1BASF, Raleigh, NC, 2BASF Corporation, Durham, NC (333)

 

9:15   Dicamba Findings in 2018. J. K. Norsworthy*1, T. Barber2; 1University of Arkansas, Fayetteville, AR, 2University of Arkansas, Lonoke, AR (334)

 

9:30   The Effect of Tank Mix Partners on Xtendimax Volatility. M. Bernards1, A. S. Culpepper2, G. Kruger3, S. A. Nolte4, J. K. Norsworthy5, D. de Oliveira Latorre6, D. B. Reynolds*7, P. Sikkema8, B. Sperry9, C. Sprague10, D. O. Stephenson11, R. Werle12, B. G. Young13; 1Western Illinois University, Macomb, IL, 2University of Georgia, Tifton, GA, 3University of Nebraska-Lincoln, North Platte, NE, 4Texas A&M AgriLife Extension, College Station, TX, 5University of Arkansas, Fayetteville, AR, 6University of Nebraska, Lincoln, NE, 7Mississippi State University, Mississippi State, MS, 8University of Guelph, Ridgetown, ON, 9Mississippi State University, Starkville, MS, 10Michigan State University, East Lansing, MI, 11Louisiana State University AgCenter, Alexandria, LA, 12University of Wisconsin-Madison, Madison, WI, 13Purdue University, Brookston, IN (335)

 

9:45   Use of Field Evaluations to Better Understand Dicamba Volatility. C. Brabham*1, J. K. Norsworthy1, M. Zaccaro1, V. K. Varanasi1, T. Mueller2; 1University of Arkansas, Fayetteville, AR, 2University of Tennessee, Knoxville, TN (336)




WEDNESDAY  MORNING    FEBRUARY 13

Section 9. Weed Biology and Ecology

LOCATION:   Maurepas
TIME:   8:00 AM - 3:00 PM
CHAIR:   Vijay Singh
    Texas A&M University
    College Station, TX
CO-CHAIR:   Mohsen Mesgaran
    University of California
    Davis, CA
MODERATOR:   Vijay Singh
    Texas A&M University
    College Station, TX

 

*SPEAKER

 

8:00   The Problem with Resource Dependent Plant Competition. C. J. Swanton*, S. Amirsadeghi; University of Guelph, Guelph, ON (337)

 

8:15   Artificial and Surrogate Weeds for Physical Weed Control Research. E. Gallandt*1, L. Pedrosa2; 1University of Maine, Orono, ME, 2Federal University of Mato Grosso, Sinip, MT, Brazil (338)

 

8:30   Influence of Management Practices on Palmer Amaranth Emergence Pattern in South Central Nebraska. P. Chahal*, E. R. Barnes, A. J. Jhala; University of Nebraska-Lincoln, Lincoln, NE (339)

 

8:45   Weed Syndromes as Cultural Phenomena. J. Cardina*; Ohio State University, Wooster, OH (340)

 

9:00   Genomics for Weed Science: De Novo Assembly, Annotation, and First Analysis of an Invasive and Troublesome Weed. A. Porri*1, J. Lerchl2, R. A. Aponte3; 1BASF SE, Ludwigshafen am Rhein, Germany, 2BASF SE, Limburgerhof, Germany, 3, Ludwigshafen, Germany (341)

 

9:15   QTL Analysis of Seed Dormancy in Japonica-like Weedy Rice. T. Imaizumi*1, K. Ebana1, Y. Kawahara1, J. Hosoi2; 1NARO, Tsukuba, Japan, 2Nagano Prefecture Agricultural Experiment Station, Suzaka, Japan (342)

 

9:30   Whole-Genome Sequencing Provides Insights into Waterhemp Evolution. J. Kreiner1, D. Giacomini2, B. Waithaka3, F. Bemm3, C. Lanz3, J. Hildebrandt3, J. Regalado3, P. Sikkema4, P. Tranel*5, D. Weigel3, J. Stinchcombe1, S. Wright1; 1University of Toronto, Toronto, ON, 2University of Illinois, Urbana, IL, 3Max Planck Institute for Developmental Biology, Tubingen, Germany, 4University of Guelph, Ridgetown, ON, 5University of Illinois, Urbana, IL (343)

 

9:45   Comparative Analysis of Glyphosate Resistant and Sensitive Genomes Indicates Genome Rearrangement as a Mechanism of Adaptation. E. L. Patterson*1, W. Molin2, D. G. Peterson3, C. A. Saski1; 1Clemson University, Clemson, SC, 2USDA-ARS, Stoneville, MS, 3Mississippi State University, Mississippi State, MS (344)

 

10:00   Break

 

10:15   Exploitation of Sex for Weed Management. M. Matzrafi, S. Ohadi, M. B. Mesgaran*; University of California, Davis, Davis, CA (345)

 

10:30   Advances in Precision Weed Management. V. Singh*1, M. Bishop1, D. Martin2, M. Latheef2, B. B. Sapkota1, A. Filippi1, M. V. Bagavathiannan1; 1Texas A&M University, College Station, TX, 2USDA-ARS, College Station, TX (346)

 

10:45   Ecological Strategies to Manage Herbicide-Resistant Kochia Seed Bank in Irrigated Cropping Systems of the US Great Plains. P. Jha*1, A. Kniss2, N. C. Lawrence3, R. Yadav1; 1Montana State University, Huntley, MT, 2University of Wyoming, Laramie, WY, 3University of Nebraska-Lincoln, Pullman, WA (347)

 

11:00   Early Season Exposure to Weed Reflected Light has Season Long Implications for Sugarbeet. A. T. Adjesiwor, A. Kniss*; University of Wyoming, Laramie, WY (348)

 

11:15   Weed Community Dynamics Affected by Long-Term (36 Years) Tillage Practices in Southeast Texas. P. Govindasamy, D. Sarangi*, J. Mowrer, N. Rajan, T. Provin, F. M. Hons, M. V. Bagavathiannan; Texas A&M University, College Station, TX (349)

 

11:30   Looking for ‘Rare’ Weeds of Agronomic Concern in a Changing Climate. S. K. Birthisel*1, B. J. Brown2, E. Gallandt1; 1University of Maine, Orono, ME, 2Cornell University, Geneva, NY (350)

 

11:45   A Weed Seedbank Survey in Bihar and Eastern UP Reveals Variations in Wheat Weed Communities. C. J. Lowry*1, D. C. Brainard2, V. Kumar3, R. Malik4, R. Jat5, S. Poonia6, M. Singh6, P. Kumar7, A. Kumar8, V. Kumar9, R. K. Joon8, A. McDonald8; 1Agricultural Research Service, Urbana, IL, 2Michigan State University, East Lansing, MI, 3IRRI, Manila, Philippines, 4CIMMYT-CSISA Hub, Patna, India, 5CIMMYT, Delhi, India, 6CIMMYT, Patna, India, 7CIMMYT, Samastipur, India, 8CIMMYT, New Delhi, India, 9IRRI, New Delhi, India (351)

 

12:00   Lunch

 

1:00   Increased Temperatures and Elevated CO2 Levels Reduce the Sensitivity of Conyza canadensis and Chenopodium album to Glyphosate. M. Matzrafi*1, C. A. Brunharo2, P. Tehranchian3, B. Hanson4, M. Jasieniuk1; 1University of California, Davis, Davis, CA, 2Oregon State University, Corvallis, OR, 3University of Arkansas, Davis, CA, 4University of California, Davis, Winters, CA (352)

 

1:15   A Meta-Analysis of Alternative Weed Hosts for Plant Pathogens in the North Central United States. E. Burns*; Michigan State University, East Lansing, MI (353)

 

1:30   Interference of Amaranthus palmeri S. Wats. and Digitaria sanguinalis (L.) Scop. in Soybean. N. T. Basinger*1, K. M. Jennings2, D. Monks2, W. Everman2, D. Jordan2, E. L. Hestir3; 1University of Georgia, Athens, GA, 2North Carolina State University, Raleigh, NC, 3University of California, Merced, Merced, CA (354)

 

1:45   Dormancy Behavior and Biology of African Mustard Weed (Brassica tournefortii) in Australia. G. Mahajan*, B. S. Chauhan; The University of Queensland, Gatton, Australia (355)

 

2:00   Development of a Goosegrass (Eleusine indica) Draft Genome and Application to Weed Science Research. H. Zhang*1, J. S. McElroy1, N. Hall1, L. R. Goertzen1, B. Bi1, C. Charles1, E. Peatman1, E. K. Lowe2; 1Auburn University, Auburn, AL, 2Georgia Institute of Technology, Atlanta, GA (356)

 

2:15   Detection of Resistance to PPO-Inhibiting Herbicides using the Syngenta Herbicide Resistance Leaf (HRL) Test. S. S. Kaundun*1, J. J. Downes1, L. V. Jackson1, R. Wuerffel2, S. Hutchings1; 1Syngenta, Bracknell, England, 2Syngenta, Vero Beach, FL (357)

 

2:30   Regional Differences in Kochia Germination from the US Great Plains: Effect of Water Potential. R. Yadav*1, P. Jha1, A. Kniss2, N. C. Lawrence3, G. Sbatella4; 1Montana State University, Huntley, MT, 2University of Wyoming, Laramie, WY, 3University of Nebraska-Lincoln, Pullman, WA, 4University of Wyoming, Powell, WY (358)

 

2:45   Tillage and Cover Crops Influence Weed-Insect Interactions in Winter Squash. D. C. Brainard*1, M. M. Benzle1, Z. Szendrei1, L. R. Appenfeller2; 1Michigan State University, East Lansing, MI, 2Michigan State Univeristy, East Lansing, MI (359)




WEDNESDAY  MORNING    FEBRUARY 13

Section 13. Integrated Weed Management

LOCATION:   Napoleon Ballroom A123
TIME:   8:00 AM - 11:45 AM
CHAIR:   Harry Strek
    BayerCropscience
    Leverkusen, Germany
CO-CHAIR:   Vijay Singh
    Texas A&M University
    College Station, TX
MODERATOR:   Harry Strek
    BayerCropscience
    Leverkusen, Germany

 

*SPEAKER

 

8:00   Multiple Resistance: The Rest of the Story. D. Simpson*1, M. Peterson2, T. Wright3; 1Corteva Agrisciences, Indianapolis, IN, 2Dow AgroSciences, West Lafayette, IN, 3Dow DuPont, Ag Division, Carmel, IN (360)

 

8:15   Direct Seeded Rice in Sequence with No-Till Wheat in North-Western India: Weed Dynamics, Weed Management and Emerging Issues. D. Yadav*1, A. Yadav2, R. Malik3, G. Gill4; 1CCS Haryana Agricultural University, Karnal, India, 2CCS Haryana Agricultural University, Hisar, India, 3CIMMYT-CSISA Hub, Patna, India, 4University of Adelaide, Adelaide, Australia (361)

 

8:30   Chaff Lining: A Recently Developed Low Cost Harvest Weed Seed Control Method for Australian Cropping Systems. J. C. Broster*1, A. E. Rayner2, A. Ruttledge3, M. J. Walsh4; 1Charles Sturt University, Wagga Wagga, Australia, 2University of Sydney, Sydney, Australia, 3Queensland Department of Agriculture and Fisheries, Toowoomba, Australia, 4University of Sydney, Narrabri, Australia (362)

 

8:45   Weeds as Indicators of Soil Imbalance and other Rural Legends. D. Doohan*1, M. Kleinhenz2, C. Brock2, D. Jackson-Smith2, S. Culman3, S. Kumarappan2, C. Herms2, A. Levia Soto2; 1Ohio State University, Wooser, OH, 2Ohio State University, Wooster, OH, 3Ohio State University, wooster, OH (363)

 

9:00   Effects of Day and Night Application of Glufosinate on Ammonia Accumulation, Electron Transport Rate, and Weed Control. E. B. De Castro*1, C. A. Carbonari2, F. H. Krenchinski3, E. D. Velini3, M. F. Dias3, T. Tseng4; 1Mississippi State University, STARKVILLE, MS, 2Sao Paulo State University, Botucatu, Brazil, 3Sao Paulo State University, BOTUCATU, Brazil, 4Mississippi State University, Mississippi State, MS (364)

 

9:15   Integrating Cultural Practices and Herbicides for Managing Glyphosate-Resistant Palmer Amaranth in Sorghum. R. Liu*1, V. Kumar1, R. Perumal2, T. Lambert2; 1Kansas State University, Hays, KS, 2Kansas State University, hays, KS (365)

 

9:30   Chenopodium album Resistance in India and its Management Strategies. S. Singh*; CCSHAU, Hisar, India (366)

 

9:45   Weed Identification by Mobile Device. H. J. Santel*, M. P. Schikora; BASF, Langenfeld, Germany (367)

 

10:00   Break

 

10:15   Living Mulch as a Tool for Integrated Weed Management in Organic Vegetables. C. R. Hooks1, A. W. Leslie2, V. L. Yurchak*1; 1University of Maryland, College Park, MD, 2University of Maryland, Glenn Dale, MD (368)

 

10:30   Spring-Seeded Cereal Rye for Weed Suppression in Watermelon. K. M. Vollmer*1, M. J. VanGessel2, B. A. Scott2, T. E. Besancon3, B. L. Carr4; 1University of Delaware, Delaware, VA, 2University of Delaware, Georgetown, DE, 3Rutgers University, CHATSWORTH, NJ, 4Rutgers University, Chatsworth, NJ (369)

 

10:45   Evaluation of Field Pennycress as a Useful Oilseed Cover Crop for Suppression of Weeds in the Northern Great Plains. J. V. Anderson*1, A. Nobriga1, B. Bigger1, M. Berhow2, S. Vaughn2; 1USDA-ARS, Edward T. Schafer Agricultural Research Center, Fargo, ND, 2USDA-ARS, National Center for Agricultural Utilization Research, Peoria, IL (370)

 

11:00   Modify the Wheat Architecture as an Agro-Technical Tool to Improve its Competitiveness with Weeds in an Integrated Weed Management (IWM). R. N. Lati*1, Z. Peleg2, R. Ben-David3; 1Agricultural Research Organization, Newe Ya’ar Research Center, Kfar Tavor, Israel, 2The R.H. Smith Institute of Plant Science & Genetics in Agriculture, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel, 3Agricultural Research Organization, Bet Dagan, Israel (371)

 

11:15   Rewarding Best Pest Management Practices via Reduced Crop Insurance Premiums. H. J. Beckie*1, S. J. Smyth2, M. D. Owen3, S. Gleim2; 1University of Western Australia, Crawley, WA, Australia, 2University of Saskatchewan, Saskatoon, SK, 3Iowa State University, Ames, IA (372)

 

11:30   Remote Detection of Goosegrass in Tomato and Strawberry Plasticulture Production using Machine Vision. S. M. Sharpe*1, A. W. Schumann1, N. Boyd2; 1University of Florida, Wimauma, FL, 2University of Florida, Balm, FL (373)




WEDNESDAY  MORNING    FEBRUARY 13

Section 12. Soil and Environmental Aspects

LOCATION:   Napoleon Ballroom A123
TIME:   11:45 AM - 12:15 PM
CHAIR:   Te-Ming Tseng
    Mississippi State University
    Mississippi State, MS
CO-CHAIR:   Daljit Singh
    Monsanto
    Wildwood, MO
MODERATOR:   Te-Ming Tseng
    Mississippi State University
    Mississippi State, MS

 

*SPEAKER

 

11:45   Indaziflam Soil Dissipation from Georgia Pecan Groves. T. L. Grey*1, K. M. Eason2; 1University of Geogia, Tifton, GA, 2University of Georgia, Tifton, GA (374)

 

12:00   Linking the Invasion of Weedy Species to Altered Functional Adaptations of Soil Microbes. K. Min*1, N. Tharayil1, P. C. Bhowmik2, V. Suseela1; 1Clemson University, Clemson, SC, 2University of Massachusetts, Amherst, MA (375)




WEDNESDAY  MORNING    FEBRUARY 13

Herbicide Resistant Weeds in Turf, Ornamental and Nursery Crops

LOCATION:   Napoleon Ballroom B123
TIME:   8:00 AM - 12:00 PM
CHAIR:   Prasanta Bhowmik
    University of Massachusetts
    Amherst, MA
CO-CHAIR:   Jatinder Aulakh
    The Connecticut Agricultural Experiment Station
    Windsor, CT
MODERATOR:   Prasanta Bhowmik
    University of Massachusetts
    Amherst, MA

 

*SPEAKER

 

8:00   Introduction to the Symposium. P. C. Bhowmik*; University of Massachusetts, Amherst, MA (376)

 

8:10   Problems Associated with Confirming Novel Resistance Mechanism. J. S. McElroy*; Auburn University, Auburn, AL (377)

 

8:30   Novel Mechanisms of Glyphosate Resistance In Amaranthus Species & Its Implication. M. Jugulam*, D. Koo, B. Gill; Kansas State University, Manhattan, KS (378)

 

8:50   A Chance to Change the Ending. J. T. Brosnan*; U of TN 252 Ellington Bldg, Knoxville, TN (379)

 

9:10   Resistant weed management in cool-season turfgrass. S. Askew*; Virginia Tech, Blacksburg, VA (380)

 

9:30   A Manufacturer's Perspective on Herbicide Resistant Weeds in Turf, Ornamentals and Nursery Crops. J. M. Breuninger*; Corteva Agriscience, Indianapolis, IN (381)

 

9:45   Break

 

10:00   Resistant Weed Management in the Southern United States. L. Tredway*; Syngenta, Raleigh, NC (382)

 

10:20   Herbicide-Resistance in Broadleaf Weeds and Sedges in Turfgrass. P. McCullough*; University of Georgia, Griffin, GA (383)

 

10:40   Herbicide-Resistant Weeds in Managed Landscapes and Nursery Crops: Current Status and Potential Impacts. J. Derr*1, J. Neal2; 1Virginia Tech, Virginia Beach, VA, 2North Carolina State University, Raleigh, NC (384)

 

10:50   Resistant Weeds in Managed Landscapes and Nursery Crops. J. Neal*; North Carolina State University, Raleigh, NC (385)

 

11:00   Critical Next Steps in Combating Herbicide Resistance: What we Heard, Think and Plan on doing after the Resistance Listening Sessions. M. Barrett*1, J. Schroeder2, D. R. Shaw3, A. Asmus4, D. E. Ervin5, R. Jussaume6, H. D. Coble7; 1University of Kentucky, Lexington, KY, 2USDA Office of Pest Management Policy, Arlington, VA, 3Mississippi State University, Mississippi State, MS, 4, Rake, IA, 5Portland State University, Portland, OR, 6Michigan State University, East Lansing, MI, 7USDA, Cary, NC (386)

 

11:20   Discussion

 

11:40   Discussion




WEDNESDAY  MORNING    FEBRUARY 13

Integrated Weed Management to Address Weed Resistance

LOCATION:   Napoleon Ballroom C123
TIME:   8:00 AM - 4:30 PM
CHAIR:   Lauren Lazaro
    Louisiana State University AgCenter
    Baton Rouge, LA
MODERATOR:   Lauren Lazaro
    Louisiana State University AgCenter
    Baton Rouge, LA

 

*SPEAKER

 

8:00   Introduction to Symposium and area-wide projects. L. M. Lazaro*; Louisiana State University AgCenter, Baton Rouge, LA (387)

 

8:10   Have We Gotten Lost in the Weeds?  Where We've Been and Where We're Headed with Weed Management in U.S. Agriculture. K. Bradley*; University of Missouri, Columbia, MO (388)

 

8:35   The Importance of Harvest Weed Seed Control in Integrated Weed Management Decisions. M. J. Walsh*; University of Sydney, Narrabri, Australia (389)

 

9:00   Current Status and Furture of Harvest Weed Seed Control in the US. M. V. Bagavathiannan*1, J. K. Norsworthy2, L. M. Lazaro3, S. Mirsky4, M. J. Walsh5; 1Texas A&M University, College Station, TX, 2University of Arkansas, Fayetteville, AR, 3Louisiana State University AgCenter, Baton Rouge, LA, 4USDA-ARS, Beltsville, MD, 5University of Sydney, Narrabri, Australia (390)

 

9:25   Break

 

10:00   Weed Seed Rain Phenology: An Areawide Approach. L. M. Lazaro*1, J. Evans2, J. K. Norsworthy3, S. B. Mirsky4, A. S. Davis5, K. Bradley6, L. E. Steckel7, M. V. Bagavathiannan8, J. A. Bond9, J. Lindquist10, N. R. Jordan11, M. L. Flessner12, M. J. VanGessel13, W. Everman14, W. S. Curran15, N. E. Korres3; 1Louisiana State University AgCenter, Baton Rouge, LA, 2Farmscape Analytics, Concord, NH, 3University of Arkansas, Fayetteville, AR, 4USDA-ARS, Beltsville, MD, 5N-319 Turner Hall, Urbana, IL, 6University of Missouri, Columbia, MO, 7University of Tennessee, Jackson, TN, 8Texas A&M University, College Station, TX, 9Delta Research and Extension Center, Stoneville, MS, 10University of Nebraska, Lincoln, NE, 11University of Minnesota, St. Paul, MN, 12Virginia Tech, Blacksburg, VA, 13University of Delaware, Georgetown, DE, 14North Carolina State University, Raleigh, NC, 15Penn State University, Bozeman, MT (391)

 

10:25   Role of Cover Crops and Tillage in Weed Management. W. S. Curran*1, J. M. Wallace2; 1Penn State University, Bozeman, MT, 2Penn State University, University Park, PA (392)

 

10:50   A National Assessment of Cover Crops in an IWM Program. S. Mirsky*1, J. K. Norsworthy2, A. S. Davis3, M. V. Bagavathiannan4, J. A. Bond5, K. Bradley6, W. S. Curran7, J. Evans8, W. Everman9, M. L. Flessner10, G. Frisvold11, N. R. Jordan12, L. M. Lazaro13, J. Lindquist14, L. S. Shergill6, L. E. Steckel15, M. J. VanGessel16; 1USDA-ARS, Beltsville, MD, 2University of Arkansas, Fayetteville, AR, 3N-319 Turner Hall, Urbana, IL, 4Texas A&M University, College Station, TX, 5Delta Research and Extension Center, Stoneville, MS, 6University of Missouri, Columbia, MO, 7Penn State University, Bozeman, MT, 8Farmscape Analytics, Concord, NH, 9North Carolina State University, Raleigh, NC, 10Virginia Tech, Blacksburg, VA, 11University of Arizona, Tucson, AZ, 12University of Minnesota, St. Paul, MN, 13Louisiana State University AgCenter, Baton Rouge, LA, 14University of Nebraska, Lincoln, NE, 15University of Tennessee, Jackson, TN, 16University of Delaware, Georgetown, DE (393)

 

11:15   Crop Rotation and Cropping System Design for Effective Weed Management. M. Liebman*, V. Nichols, D. Weisberger; Iowa State University, Ames, IA (394)

 

11:45   Lunch

 

1:00   Regional Discussion Breakout: What is Adoptable, Practical, and Economical in each Region. L. M. Lazaro*; Louisiana State University AgCenter, Baton Rouge, LA (395)

 

1:45   Addressing Longterm Integrated Weed Management Decisions through Modeling. J. A. Evans*1, A. S. Davis2, G. Frisvold3, S. B. Mirsky4; 1Farmscape Analytics, Concord, NH, 2N-319 Turner Hall, Urbana, IL, 3University of Arizona, Tucson, AZ, 4USDA-ARS, Beltsville, MD (396)

 

2:10   GROW (Getting Rid of Weeds): A National Extension Effort Driving Adoption of Integrated Weed Management. M. L. Flessner*1, M. J. VanGessel2, M. V. Bagavathiannan3, L. M. Lazaro4, K. B. Pittman1, C. G. Rubione2, S. B. Mirsky5; 1Virginia Tech, Blacksburg, VA, 2University of Delaware, Georgetown, DE, 3Texas A&M University, College Station, TX, 4Louisiana State University AgCenter, Baton Rouge, LA, 5USDA-ARS, Beltsville, MD (397)

 

2:35   Break

 

3:00   Socioeconomics. G. Frisvold*; University of Arizona, Tucson, AZ (398)

 

3:25   Where is Integrated Weed Management Headed? J. K. Norsworthy*; University of Arkansas, Fayetteville, AR (399)

 

3:50   Discussion




WEDNESDAY  MORNING    FEBRUARY 13

Section 11. Physiology

LOCATION:   Borgne
TIME:   11:00 AM - 5:00 PM
CHAIR:   Christopher Rouse
    FMC
    Newark, DE
CO-CHAIR:   Te-Ming Tseng
    Mississippi State University
    Mississippi State, MS
MODERATOR:   Christopher Rouse
    FMC
    Newark, DE

 

*SPEAKER

 

11:00   Antimalarial Herbicides and Herbicidal Antimalarials: Exploiting the Plant-Plasmodium Connection. J. S. Mylne*; The University of Western Australia, Perth, Australia (400)

 

11:15   Investigating the Role of Allelic Contribution to Glyphosate Resistance in Polyploid Weed Species. S. Morran*1, C. A. Brunharo2, M. Jasieniuk1, B. Hanson3; 1University of California, Davis, Davis, CA, 2Oregon State University, Corvallis, OR, 3University of California, Davis, Winters, CA (401)

 

11:30   Comparative Analysis of Glyphosate Resistant and Sensitive Genomes Indicates Genome Rearrangement as a Mechanism of Rapid Adaption. E. L. Patterson*1, W. Molin2, D. G. Peterson3, C. A. Saski1; 1Clemson University, Clemson, SC, 2USDA-ARS, Stoneville, MS, 3Mississippi State University, Mississippi State, MS (402)

 

11:45   Photooxidative Stress Conditions Elicit Contrasting Responses in Paraquat Resistant and Susceptible Italian Ryegrass Biotypes. C. A. Brunharo*1, B. Hanson2; 1Oregon State University, Corvallis, OR, 2University of California, Davis, Winters, CA (403)

 

12:00   Lunch

 

1:00   Abiotic Stressors and Herbicide Differentially Regulate the Global Metabolome of Amaranthus palmeri Biotypes that Exhibit Contrasting Glyphosate Susceptibilities. N. Tharayil*1, E. M. Leonard2, V. K. Nandula3, S. O. Duke4; 1Clemson University, Clemson, SC, 2Clemson University, CLEMSON, SC, 3USDA-ARS, Cleveland, MS, 4USDA-ARS-NPURU, Oxford, MS (404)

 

1:15   Expression Variation in Phenoxy Resistant and Susceptible Buckhorn Plantain (Plantago lanceolata) following 2,4-D Exposure. J. S. McElroy*1, A. J. Patton2, P. McCullough3, Q. D. Law4; 1Auburn University, Auburn, AL, 2Purdue University, W Lafayette, IN, 3University of Georgia, Griffin, GA, 4Purdue University, West Lafayette, IN (405)

 

1:30   Mechanisms of Glyphosate Resistance in Palmer Amaranth: Insights from Transcriptome and Epigenetic Profiling. W. Molin*1, C. A. Saski2; 1USDA-ARS, Stoneville, MS, 2Clemson University, Clemson, SC (406)

 

1:45   Is Resistance to PPO Inhibitors in Palmer and Waterhemp Explained Solely by Target-Site Based Mechansims? C. Wu*1, A. Perez-Jones2, P. Feng3, L. E. Flagel1, S. S. Navarro1; 1Bayer Crop Science, St Louis, MO, 2Bayer Crop Science, Chesterfield, MO, 3Bayer Crop Science, Saint Louis, MO (407)

 

2:00   Metabolic Resistance to Pre-Emergence Herbicides: The Case of Rye-Grass. R. Duecker1, V. Brabetz1, P. Zoellner1, S. Ries1, A. Collavo1, P. Luemmen1, R. S. Beffa*2; 1Bayer Crop Science, Frankfurt, Germany, 2Bayer Crop Science, Frankfort / Main, Germany (408)

 

2:15   Comparison of EPSPS Tandem Duplication Sequence Across Glyphosate-Resistant Kochia scoparia Populations. T. Gaines*1, E. L. Patterson2, A. Dixon3, C. Sparks1, K. Ravet1, A. Kuepper4, P. Westra1; 1Colorado State University, Fort Collins, CO, 2Clemson University, Clemson, SC, 3Rothamsted Research, Harpenden, England, 4Bayer Crop Science, Frankfurt, Germany (409)

 

2:30   Metabolic Resistance to Preemerging Herbicides in Grasses: The Case of Blackgrass. E. Parcharidou1, R. Dücker2, V. Brabetz1, A. Kuepper1, R. S. Beffa*3; 1Bayer Crop Science, Frankfurt, Germany, 2University of Göttingen, Frankfurt, Germany, 3Bayer Crop Science, Frankfort / Main, Germany (410)

 

2:45   Ambrosia confertiflora, a Perennial Invasive Weed in Israel. B. Rubin*, Y. Yair; Hebrew University of Jerusalem, Rehovot, Israel (411)

 

3:00   Break

 

3:15   New Insight on the Mechanism of Action of PPO Inhibitors. F. E. Dayan*, A. L. Barker; Colorado State University, Fort Collins, CO (412)

 

3:30   Mechanisms Causing 2,4-D Resistance in Sonchus oleraceus. M. Krishnan*1, T. Petrovic2, A. Merriam2, G. Velappan2, C. Preston2; 1University of Adelaide, Urrbrae, Australia, 2University of Adelaide, Glen Osmond, Australia (413)

 

3:45   Glyphosate-Resistant Echinochloa colona from Mississippi and Tennessee: Magnitude and Resistance Mechanisms. V. K. Nandula*1, G. Montgomery2, A. Vennapusa3, M. Jugulam3, D. Giacomini4, J. Ray5, J. A. Bond6, P. Tranel7; 1USDA-ARS, Cleveland, MS, 2University of Tennessee, Knoxville, TN, 3Kansas State University, Manhattan, KS, 4University of Illinois, Urbana, IL, 5USDA, Stoneville, MS, 6Delta Research and Extension Center, Stoneville, MS, 7University of Illinois, Urbana, IL (414)

 

4:00   Resistance to Clethodim in Italian ryegrass (Lolium perenne ssp. multiflorum) from Mississippi and North Carolina. V. K. Nandula*1, D. Giacomini2, B. Lawrence3, W. Molin4, J. A. Bond5; 1USDA-ARS, Cleveland, MS, 2University of Illinois, Urbana, IL, 3Mississippi State University, Stoneville, MS, 4USDA-ARS, Stoneville, MS, 5Delta Research and Extension Center, Stoneville, MS (415)

 

4:15   Palmer Amaranth and Kochia Impacts and Research in Colorado. P. Westra*1, T. Gaines1, E. L. Patterson2, A. Effertz3; 1Colorado State University, Fort Collins, CO, 2Clemson University, Clemson, SC, 3Colorado State University, Ft. Collins, CO (416)

 

4:30   What Can Drive Resistance to Chloroacetamides in Amaranthus? N. R. Burgos*1, G. Rangani1, L. Benedetti2, R. A. Salas-Perez1; 1University of Arkansas, Fayetteville, AR, 2Universidad Federal do Pelotas, Pelotas, Brazil (417)




WEDNESDAY  AFTERNOON    FEBRUARY 13

Graduate Student Workshop

LOCATION:   Oak Alley
TIME:   12:00 PM - 2:00 PM
CHAIR:   Jess Bunchek
    Penn State University
    State College, PA
MODERATOR:   Jess Bunchek
    Penn State University
    State College, PA

 

*SPEAKER



WEDNESDAY  AFTERNOON    FEBRUARY 13

Section 7. Teaching and Extension

LOCATION:   Napoleon Ballroom A123
TIME:   1:00 PM - 3:00 PM
CHAIR:   Jatinder Aulakh
    The Connecticut Agricultural Experiment Station
    Windsor, CT
CO-CHAIR:   Sandeep Rana
    Monsanto
    Galena, MD
MODERATOR:   Jatinder Aulakh
    The Connecticut Agricultural Experiment Station
    Windsor, CT

 

*SPEAKER

 

1:00   Helping Farmers Navigate Complex Decisions About Managing Weeds in Organic Systems. D. Doohan*1, D. Bessette2, C. Beaudrie3, S. Culman4, R. Wilson5; 1Ohio State University, Wooser, OH, 2Michigan State University, East Lansing, MI, 3Compass Resource Management Ltd., Vancouver, BC, 4Ohio State University, wooster, OH, 5Ohio State University, Columbus, OH (418)

 

1:15   Complementary Applications of Analytic Techniques in Field Research. J. T. Buol*1, A. Brown-Johnson2, D. B. Reynolds1; 1Mississippi State University, Mississippi State, MS, 2Mississippi State Chemistry Laboratory, Mississippi State, MS (419)

 

1:30   Predatory Publishing: Where Are We Now? S. M. Ward*; Colorado State University, Fort Collins, CO (420)

 

1:45   How can Weed Scientists Address the California Glyphosate Verdict? J. D. Byrd, Jr.*; Mississippi State University, Mississippi State, MS (421)

 

2:00   A Cropping-System Weed Science Survey of Brazil, a Breadbasket Country in the Tropics. M. Coura Oliveira*1, A. Lencina da Silva2, A. R. Ulguim2, R. Werle1; 1University of Wisconsin-Madison, Madison, WI, 2Universidade Federal de Santa Maria, Santa Maria, Brazil (422)

 

2:15   Survey of 2017 and 2018 Dicamba Use in Nebraska and Wisconsin Soybean Production Systems. R. Werle1, A. J. Jhala2, P. D. Mitchell1, M. Coura Oliveira*1; 1University of Wisconsin-Madison, Madison, WI, 2University of Nebraska-Lincoln, Lincoln, NE (423)

 

2:30   Evaluating Many Sides of an Issue: Teaching with Case Studies. A. Dille*; Kansas State University, Manhattan, KS (424)

 

2:45   Break




WEDNESDAY  AFTERNOON    FEBRUARY 13

Ag Regulation as Affected by Urbanization of a Country

LOCATION:   Napoleon Ballroom B123
TIME:   1:00 PM - 5:00 PM
CHAIR:   Tom Mueller
    University of Tennessee
    Knoxville, TN
MODERATOR:   Tom Mueller
    University of Tennessee
    Knoxville, TN

 

*SPEAKER

 

1:00   Millions of People, Millions of Acres:  Co-Existing In a Big Ag, Big Urban State. J. Payne*1, T. Mueller2; 1Illinois Fertilizer and Chemical Associatino, Bloomington, IL, 2University of Tennessee, Knoxville, TN (425)

 

1:55   Societal Developments and Expectations in Europe – Implications on Environmental Regulation of Agriculture. J. Keppler*1, T. Mueller2; 1Bayer Crop Science, Frankfurt/Main, Germany, 2University of Tennessee, Knoxville, TN (426)

 

2:50   Break

 

3:05   Our Land and Water; Perspectives on how Market Forces and Regulation are Shaping the Future of NZ Farming. R. Dynes*1, T. Mueller2; 1New Zealand Ag Research, Christchurch, New Zealand, 2University of Tennessee, Knoxville, TN (427)

 

4:00   Restrictions to Farming in the Pacific Northwest, from Endangered Salmon Runs to Impacts from Urban Gardens. T. W. Miller*1, T. Mueller2; 1Washington State University - Mt Vernon, Mount Vernon, WA, 2University of Tennessee, Knoxville, TN (428)




WEDNESDAY  AFTERNOON    FEBRUARY 13

Travel Enrichment Experience

LOCATION:   Napoleon Ballroom A123
TIME:   3:15 PM - 4:15 PM
CHAIR:   Jess Bunchek
    Penn State University
    State College, PA
MODERATOR:   Jess Bunchek
    Penn State University
    State College, PA

 

*SPEAKER

 

3:15   Educational Experience at Corteva Agriscience Western Research Center, Fresno, California. D. Saha*1, J. Armstrong2, C. Marble3; 1Mid-Florida Research and Education Center, University of Florida, Apopka, FL, 2Corteva Agriscience Western Research Center, Fresno, CA, 3University of Florida, Apopka, FL (429)

 

3:25   We're Not in Row Crops Anymore: A Boilermaker's Tale of California Agriculture. C. McCauley*; Corteva Agriscience, Indianapolis, IN (430)

 

3:35   2018 WSSA Travel Enrichment Experience with the University of Georgia at Tifton. J. Gizotti de Moraes*; University of Nebraska-Lincoln, North Platte, NE (431)

 

3:45   Travel Enrichment Experience: Herbicide Resistance in the Mississippi Delta and Beyond. S. C. Haring*; University of California, Davis, Davis, CA (432)

 

3:55   Surveying Syngenta in Greensboro, North Carolina. J. J. Puka-Beals*; North Dakota State University, Fargo, ND (433)




WEDNESDAY  AFTERNOON    FEBRUARY 13

Section 2. Horticultural Crops

LOCATION:   Maurepas
TIME:   4:00 PM - 5:00 PM
CHAIR:   Katherine Jennings
    North Carolina State University
    Raleigh, NC
CO-CHAIR:   Matthew Cutulle
    Clemson University
    Charleston, SC
MODERATOR:   Katherine Jennings
    North Carolina State University
    Raleigh, NC

 

*SPEAKER

 

4:00   Carolina Redroot (Lachnanthes caroliniana) Growth and Rhizome Production Response to Environmental Conditions. T. E. Besancon*; Rutgers University, CHATSWORTH, NJ (434)

 

4:15   The Long-Term Effects of Cover Crops and Fumigants on Weed Populations in Florida. N. Boyd*1, S. M. Sharpe2, J. Yu1; 1University of Florida, Balm, FL, 2University of Florida, Wimauma, FL (435)

 

4:30   Pyroxasulfone for Weed Control in Chickpea, Lentil, and Fava Bean. H. Hatterman-Valenti*1, B. Johnson2; 1North Dakota State University, Fargo, ND, 2North Dakota State University, FARGO, ND (436)

 

4:45   Sweetpotato Tolerance to Off-Target Movement of Dicamba. M. W. Shankle*, S. L. Meyers; Mississippi State University, Pontotoc, MS (437)




WEDNESDAY  AFTERNOON    FEBRUARY 13

Section 6. Regulatory Aspects

LOCATION:   Napoleon Ballroom A123
TIME:   4:30 PM - 5:00 PM
CHAIR:   Montague Dixon
    Syngenta
    Greensboro, NC
CO-CHAIR:   Cherilyn Moore
    Syngenta Crop Protection, LLC
    Greensboro, NC
MODERATOR:   Montague Dixon
    Syngenta
    Greensboro, NC

 

*SPEAKER

 

4:30   EPA's Registration Review Process and its Potential Impact on Herbicide Use. C. Moore*; Syngenta Crop Protection, LLC, Greensboro, NC (438)

 

4:45   An Update of the New EPA Mandated Requirements for Paraquat Containing Products: What Does This Mean for the End-User and Registrant. M. U. Dixon*; Syngenta, Greensboro, NC (439)




WEDNESDAY  AFTERNOON    FEBRUARY 13

WSSA Business Meeting

LOCATION:   Oak Alley
TIME:   5:15 PM - 6:45 PM
CHAIR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN
CO-CHAIR:   William Curran
    Penn State University
    Bozeman, MT
MODERATOR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN

 

*SPEAKER



THURSDAY  MORNING    FEBRUARY 14

Section 8. Formulation, Adjuvant and Application Technology

LOCATION:   Borgne
TIME:   8:00 AM - 11:15 AM
CHAIR:   J Connor Ferguson
    Mississippi State University
    Mississippi State, MS
CO-CHAIR:   Mayank Malik
    Monsanto
    Chesterfield, MO
MODERATOR:   J Connor Ferguson
    Mississippi State University
    Mississippi State, MS

 

*SPEAKER

 

8:00   Antares Prime and Antares Pro: New Products for the Agronomic Crop and T&O Markets. M. C. Cox*, M. Wayland; Helena Agri-Enterprises, Memphis, TN (440)

 

8:15   Ethoxylated Fatty Acid Methyl Esters (EFAMETM): A New Class of Surfactants for Agriculture. K. Crosby*1, T. Anderson2; 1Adjuvants Unlimited, LLC, Memphis, TN, 2, Liberty Township, OH (441)

 

8:30   Droplet Size Impact on Acifluorfen and Lactofen Efficacy for Palmer amaranth (Amaranthus palmeri) Control. L. X. Franca*1, D. Dodds1, G. Kruger2, T. R. Butts2, J. P. McNeal3, S. Davis4, J. J. Williams4, B. Norris4; 1Mississippi State University, Mississippi State, MS, 2University of Nebraska-Lincoln, North Platte, NE, 3Mississippi State University, Mississippi State, Mississippi, MS, 4Mississippi State University, Starkville, MS (442)

 

8:45   Deep Learning for Crop and Weed Detection. W. L. Patzoldt*; Blue River Technology, Sunnyvale, CA (443)

 

9:00   Redesigning HSMSO Adjuvants: Novel Terpene Polymer Containing Formulation. P. M. McMullan*1, M. Fiery2; 1Ramulus LLC, Grimes, IA, 2Miller Chemical & Fertilizer, LLC, Hanover, PA (444)

 

9:15   Paraquat: An Examination for Discovery. R. K. Zollinger*1, P. J. Porpiglia2; 1AMVAC, Spokane Valley, WA, 2AMVAC, Putnam Valley, NY (445)

 

9:30   New Findings on Ultra-Coarse Sprays and Test Methods. D. C. Bissell*1, S. Fredricks2, B. Olson2, C. Hogan2, G. K. Dahl1, L. C. Magidow3, J. Gednalske4; 1Winfield United, River Falls, WI, 2University of Minnesota, Minneapolis, MN, 3Winfield United, Maplewood, MN, 4, River Falls, WI (446)

 

9:45   Permeate: A New NPE Free, Non-Ionic Surfactant from Winfield United. R. J. Edwards*1, G. K. Dahl2, J. A. Gillilan3, T. Hayden4, E. P. Spandl5, J. Gednalske6; 1WinField United, River Falls, WI, 2Winfield United, River Falls, WI, 3WinField United, Nashville, TN, 4WinField United, Owensboro, KY, 5Winfield United, Arden Hills, MN, 6, River Falls, WI (447)

 

10:00   Break

 

10:15   Improving Herbicide Effectiveness and Minimizing Impacts with Research, Analysis, Visualization and Demonstration. G. K. Dahl*1, R. J. Edwards2, E. P. Spandl3, A. D. Makepeace3, J. J. Skelton4, L. C. Magidow5, D. C. Bissell1; 1Winfield United, River Falls, WI, 2WinField United, River Falls, WI, 3Winfield United, Arden Hills, MN, 4WinField United, Saint Paul, MN, 5Winfield United, Maplewood, MN (448)

 

10:30   Effects of Selected Adjuvants Over Two Seasons on Weed Control in Corn and Soybeans with Glufosinate-Ammonium. J. T. Daniel*1, T. Hoverstad2, M. D. Owen3, P. Johnson4, P. Westra5, E. Westra5; 1Jim T Daniel, Keenesburg, CO, 2University of Minnesota Southern Research and Outlet Center, Waseca, MN, 3Iowa State University, Ames, IA, 4South Dakota State University, Brookings, SD, 5Colorado State University, Fort Collins, CO (449)

 

10:45   Nozzle Type and Timing of Application Effects on Weed Control in Mississippi Cotton. C. Ferguson*1, P. H. Urach Ferreira1, M. T. Wesley2, L. H. Merritt2, Z. R. Treadway1, K. L. Broster1, N. Fleitz3; 1Mississippi State University, Mississippi State, MS, 2Mississippi State University, MS State, MS, 3Pentair-Hypro, New Brighton, MN (450)

 

11:00   Emergence of Multiple Resistance in Conyza canadensis Resistant to Glyphosate. C. Palma-Bautista*1, D. A. Mora2, R. Domínguez-Mendez2, A. M. Rojano-Delgado2, J. Portugal3, R. De Prado Amian4; 1University of Cordoba, CÓRDOBA, Spain, 2University of Cordoba, Cordoba, Spain, 3Polytechnic Institute of Beja, Beja, Portugal, 4University of Cordoba, Córdoba, Spain (451)




THURSDAY  MORNING    FEBRUARY 14

Section 2. Horticultural Crops

LOCATION:   Maurepas
TIME:   8:00 AM - 11:30 AM
CHAIR:   Katherine Jennings
    North Carolina State University
    Raleigh, NC
CO-CHAIR:   Matthew Cutulle
    Clemson University
    Charleston, SC
MODERATOR:   Katherine Jennings
    North Carolina State University
    Raleigh, NC

 

*SPEAKER

 

8:00   Non-Target Impacts of Herbicides on Tetranychus urticae and its Predator, Phytoseiulus persimilis: Implications for Biological Control. M. A. Cutulle*, R. A. Schmidt-Jeffris; Clemson University, Charleston, SC (452)

 

8:15   Comparison of Alternative Weed Control Methods with Four Cold Hardy White Wine Grapes. j. M. Stenger, A. Svyantek, c. M. Auwarter, H. Hatterman-Valenti*; North Dakota State University, Fargo, ND (453)

 

8:30   Sweetpotato Tolerance to Pendimethalin. S. L. Meyers*1, K. M. Jennings2, D. Miller3, M. W. Shankle1, J. L. Main1, S. C. Smith2, C. J. Morris1, L. D. Moore2, M. D. Waldschmidt2; 1Mississippi State University, Pontotoc, MS, 2North Carolina State University, Raleigh, NC, 3Louisiana State University AgCenter, St. Joseph, LA (454)

 

8:45   Cultivation Method and Frequency to Reduce Weed Density Prior to Direct Seeded Bok Choy. P. J. Dittmar*1, D. D. Treadwell1, R. Randhawa2, D. Farnsworth1, J. Perez1; 1University of Florida, Gainesville, FL, 2Virginia Tech, Blacksburg, VA (455)

 

9:00   Selecting for Bunch Type Sweetpotato Lines: A Weed Science Perspective. M. A. Cutulle*1, H. T. Campbell1, P. Wadl2; 1Clemson University, Charleston, SC, 2USDA-ARS, Charleston, SC (456)

 

9:15   Weed Control in Organic Blueberries: Comparing Thermal, Mechanical, and Chemical Tools. E. N. Augerson, M. L. Moretti*; Oregon State University, Corvallis, OR (457)

 

9:30   Asparagus Weed Control Past, Present, and Future. B. H. Zandstra*1, C. J. Phillippo2; 1Michigan State University, East Lansing, MI, 2N/A, East Lansing, MI (458)

 

9:45   An IR-4 Collaboration Success Story: Edamame. M. M. Williams*1, M. Arsenovic2, W. Barney2, D. Kunkel2; 1USDA-Agricultural Research Service, Urbana, IL, 2Rutgers University, Princeton, NJ (459)

 

10:00   Break

 

10:15   Robotic Weeders: An Easier Path to New Weed Control Technology for Vegetable Crops. S. A. Fennimore*; University of California, Davis, Salinas, CA (460)

 

10:30   Crop Response and Weed Control from Carfentrazone Applied to Stevia (Stevia rebaudiana) Row Middles. J. A. Cheek*1, R. B. Batts2; 1NCSU IR-4 Field Research Center, Raleigh, NC, 2NCSU IR-4 Field Research Center, Fremont, NC (461)

 

10:45   Weed Control Research Efforts in North Carolina Stevia (Stevia rebaudiana). R. B. Batts*1, J. A. Cheek2; 1NCSU IR-4 Field Research Center, Fremont, NC, 2NCSU IR-4 Field Research Center, Raleigh, NC (462)

 

11:00   Handweeding Organic Vidalia Sweet Onion - Necessity and Practicality. W. C. Johnson III*; USDA-ARS, Tifton, GA (463)

 

11:15   Management of Parasitic Dendrophthoe in Semi-Temperate and Temperate Fruit Crops of Jammu-Kashmir Himalayas. A. Kumar*, R. Puniya; Sher-e-Kashmir University of Agricultural Sciences and Technology - Jammu, JAMMU & KASHMIR, (INDIA)., Jammu, India (464)




THURSDAY  MORNING    FEBRUARY 14

Weather and the Environment: Understanding basics to address off target pesticides

LOCATION:   Napoleon Ballroom B123
TIME:   8:00 AM - 11:00 AM
CHAIR:   Mandy Bish
    University of Missouri
    Columbia, MO
MODERATOR:   Mandy Bish
    University of Missouri
    Columbia, MO

 

*SPEAKER

 

8:00   Introduction to Symposium. M. Bish*; University of Missouri, Columbia, MO (465)

 

8:05   Earth, Air, Sun, Outer Space, and Pesticide Dispersion. J. Nielsen-Gammon*; Texas A&M, College Station, TX (466)

 

8:35   Understanding Weather Data: Making Sense of an Increasing Amount of Available Information. D. Todey*; USDA-ARS, Ames, IA (467)

 

8:55   Surface Temperature Inversions and Lessons Learned in Collaborating with Weed Scientists . P. Guinan*; University of Missouri, Columbia, MO (468)

 

9:15   Comparison of Dicamba Air Concentration from Applications made during Inversion and Non-Inversion Conditions. S. T. Farrell*1, R. Lerch2, M. Bish1, K. Bradley1; 1University of Missouri, Columbia, MO, 2USDA-ARS, Columbia, MO (469)

 

9:35   Break

 

9:50   Processes Controlling the Fate of Pesticides in the Environment. R. Lerch*; USDA-ARS, Columbia, MO (470)

 

10:20   Analysis of Weather and Environment Surrounding Off-Target Dicamba Applications. M. Bish*, K. Bradley; University of Missouri, Columbia, MO (471)

 

10:40   Discussion




THURSDAY  MORNING    FEBRUARY 14

Teaching Workshop

LOCATION:   Napoleon Ballroom C123
TIME:   8:00 AM - 10:00 AM
CHAIR:   Tom Mueller
    University of Tennessee
    Knoxville, TN
MODERATOR:   Tom Mueller
    University of Tennessee
    Knoxville, TN

 

*SPEAKER

 

8:00   Online Weed Science Classes and Content. B. A. Ackley*1, T. Mueller2; 1Ohio State University, Columbus, OH, 2University of Tennessee, Knoxville, TN (472)

 

8:30   Learning Outcomes and Assessment Tools. K. Renner*1, T. Mueller2; 1Michigan State University, East Lansing, MI, 2University of Tennessee, Knoxville, TN (473)

 

9:00   Labs to Enhance Student Learning and Sharing Ideas About Them. E. Hill1, S. A. Clay2, M. Bernards3, T. Mueller*4; 1Michigan State University, East Lansing, MI, 2South Dakota State University, Brookings, SD, 3Western Illinois University, Macomb, IL, 4University of Tennessee, Knoxville, TN (474)