PROGRAM

TUESDAY  MORNING    MARCH 12

Weeds of Range and Natural Areas

 

*PRESENTER     † STUDENT POSTER CONTEST

 

Identifying Areas Susceptible to Invasion by Rush Skeletonweed within the Frank Church Wilderness and Nez Perce National Forest. Larry W. Lass*, Timothy S. Prather; University of Idaho, Moscow, ID (1)

 

Economics of Duncecap Larkspur Control with Aminocyclopyrachlor. Brandon J. Greet*, Andrew R. Kniss, Brian A. Mealor; University of Wyoming, Laramie, WY (12)

 

†Spring Applied Glyphosate and Imazapic for Medusahead Control. Trevor M. Peterson*, Katie Stoker, Corey V. Ransom, Ralph E. Whitesides; Utah State University, Logan, UT (2)

 

Investigating Herbicide Mixtures for Buffelgrass Management. William B. McCloskey1, Bryan C. Pastor*1, Dana Backer2; 1University of Arizona, Tucson, AZ, 2Saguaro National Park, Tucson, AZ (3)

 

†Creeping Bentgrass Mitigation Program: Alternatives for Seed Head Reduction. Sasha Twelker*, Gustavo M. Sbatella; Oregon State University, Madras, OR (4)

 

Reclaiming Downy Brome Infested Oilfield Sites for Wildlife Habitat. James R. Sebastian*; Colorado State University, Ft. Collins, CO (5)

 

Sublette Invasive Species Taskforce;  Cheatgrass Survey and Treatments. Julie A. Kraft*; Sublette County Weed and Pest, Pinedale, WY (6)

 

Management of Austrian Fieldcress (Rorippa austrica). Andy Currah*, Julie A. Kraft; Sublette County Weed and Pest, Pinedale, WY (7)

 

Feasibility of Solar Tents for Hydrothermal Inactivation of Weedy Plant Propagative Material. James J. Stapleton*; University of California, Parlier, CA (8)

 

Aminocyclopyrachlor Gives Selective Control of Barb Goatgrass in California Annual Rangeland. Guy B. Kyser*1, Josh S. Davy2, Joseph M. DiTomaso1; 1University of California, Davis, CA, 2University of California Cooperative Extension, Red Bluff, CA (9)

 

†The Effects of Litter on Demography of Ventenata dubia. Taylor E. Ortiz*, John Wallace; University of Idaho, Moscow, ID (10)

 

Russian olive (Elaeagnus angustifolia L.) Control with HBT. Katheryn M. Christianson*, Rodney G. Lym; North Dakota State University, Fargo, ND (11)

 

Control of Giant Hogweed (Heracleum mantegazzianum) to Ensure Public Safety and Economic Efficiency in a Herbicide Restricted Region of Coastal British Columbia. Jennifer B. Grenz*; Invasive Species Council of Metro Vancouver, Richmond, BC




TUESDAY  MORNING    MARCH 12

Weeds of Horticultural Crops

 

*PRESENTER     † STUDENT POSTER CONTEST

 

Prevalence of Metribuzin and Terbacil Resistant Redroot Pigweed (Amaranthus retroflexus), Powell Amaranth (Amaranthus powellii) and Common Lambsquarters (Chenopodium album) in Washington. Rick Boydston*; USDA-ARS, Prosser, WA (13)

 

Development of Vegetation Management Strategies to Rehabilitate Riparian Agricultural Sites in Western Oregon. R.E. Peachey*, Jessica Green; Oregon State University, Corvallis, OR (14)

 

Review of Flumioxazin use in Dormant Bermudagrass to Control Annual Bluegrass, Broadleaf Winter Annuals, Crabgrass and Goosegrass. Todd Mayhew*1, Joe Chamberlin2, Jason Fausey3; 1Valent Professional Products, Gilbert, AZ, 2Valent Professional Products, Snellville, GA, 3Valent Professional Products, Fremont, OH (15)

 

Effect of Stale Seedbeds, Herbicides, and Flame on Cucurbits. Carl R. Libbey*, Timothy W. Miller; Washington State University, Mount Vernon, WA (16)

 

Weeds as Sources of Inoculum for Tomato Spotted Wilt Virus in CA Vegetable Crops. Michelle Le Strange*; University of California Cooperative Extension, Tulare, CA (17)

 

Testing Herbicides for Weed Control and Crop Safety in Conifer Nurseries. Timothy W. Miller*1, R.E. Peachey2, Carl R. Libbey1; 1Washington State University, Mount Vernon, WA, 2Oregon State University, Corvallis, OR (18)

 

†Distribution of Glyphosate-resistant Junglerice (Echinocloa colona) in Perennial Crops of the Central Valley of California. Marcelo L. Moretti*1, Alejandro M. Garcia1, Albert J. Fischer1, Bradley D. Hanson2; 1UC Davis, Davis, CA, 2University of California - Davis, Davis, CA (19)

 

Effects of Post-emergence Herbicides on Glyphosate and Paraquat-Resistant Hairy Fleabane Seed Production. Lynn M. Sosnoskie*1, Bradley D. Hanson1, Marcelo L. Moretti2, Seth Watkins1, Casey Erickson1; 1University of California - Davis, Davis, CA, 2UC Davis, Davis, CA (20)

 

†Evaluation of C14-Glufosinate Translocation in Young Almond (Prunus dulcis) Trees. Rolando S. Mejorado*1, Marcelo L. Moretti2, Joi M. Abit2, Bradley D. Hanson3; 1UC Daivs, Davis, CA, 2UC Davis, Davis, CA, 3University of California - Davis, Davis, CA (21)

 

Fluridon a New Tool for Orobanche ramosa Control in Potato. Mustapha A. Haidar*, Rami El Hussieni; American University of Beirut, Beirut, Lebanon (22)

 

Weed control options in organic vineyards. Anil Shrestha*1, Kaan Kurtural2, Srinivasa Konduru2; 1California State University - Fresno, Fresno, CA, 2California State University, Fresno, CA (23)

 

†Multiple-resistance in Lolium spp perenne multiflorum. Mingyang Liu*, Andrew Hulting, Carol Mallory-Smith; Oregon State University, Corvallis, OR (24)

 

Effect of Mustard Seed Meal Incorporation on Weeds and Cavity Spot in Carrot. Matthew Helm*1, Anil Shrestha2; 1California State University, Fresno, CA, 2California State University - Fresno, Fresno, CA (25)




TUESDAY  MORNING    MARCH 12

Weeds of Agronomic Crops

 

*PRESENTER     † STUDENT POSTER CONTEST

 

When Life Hands You Glyphosate Resistant Amaranthus, Make Something. Jessica Davenport*, Kelly M. Young; University of Arizona, Phoenix, AZ (26)

 

†Control of Italian Ryegrass with Flufenacet plus Metribuzin and Pyroxasulfone Systems. Alan J. Raeder*, Nevin Lawrence, Shawn P. Wetterau, Ian C. Burke; Washington State University, Pullman, WA (27)

 

†Common Lambsquarters Response to Glufosinate as Influenced by Humidity. Carl W. Coburn*, Andrew R. Kniss; University of Wyoming, Laramie, WY (28)

 

Weed Control Programs in Sorghum Containing DuPont™ Inzen™ Z Herbicide Tolerance Trait. Robert N. Rupp*1, David W. Saunders2, Victor B. Steward3, Keith D. Johnson4; 1DuPont Crop Protection, Edmond, OK, 2DuPont Crop Protection, Johnston, IA, 3DuPont Crop Protection, Overland Park, KS, 4DuPont Crop Protection, Grand Forks, ND (29)

 

Pea, Lentil, and Chickpea Affected by Pyroxsulam and Florasulam in Prior Wheat Crop. Joan Campbell*, Traci Rauch, Donn Thill; University of Idaho, Moscow, ID (30)

 

†Weed Control with Corn Herbicides that Allow Rotation to Dry Bean and Sugarbeet. Jared C. Unverzagt*1, Andrew R. Kniss1, Ryan E. Rapp2; 1University of Wyoming, Laramie, WY, 2Monsanto Company, Scott, MS (31)

 

†Long-term Dryland Organic Crop Rotation Effects on Weed Population and Biomass Production. Rachel Unger*1, Misha R. Manuchehri1, Ian C. Burke1, E. Patrick Fuerst1, Kristy Borrelli1, Richard Koenig1, Robert S. Gallagher2, Dennis Pittmann1, Amanda Snyder3, Lori Hoagland4; 1Washington State University, Pullman, WA, 2The Pennsylvania State University, University Park, PA, 3University of Idaho, Moscow, ID, 4Purdue University, West Lafayette, IN (32)

 

Preemergence Residual Herbicides: A Valuable Tool for Weed Control in Glyphosate-Resistant Corn. Prashant Jha*1, Vipan Kumar1, Mandeep K. Riar1, Nicholas A. Reichard1, Jaya R. KC2; 1Montana State University, Huntley, MT, 2Montana State Universtiy, Huntley, MT (33)

 

Effect of Grain Type and Application Timing on the Safety of Small Grain Herbicides in Northern California. Steve B. Orloff*1, Steven D. Wright2, Robert G. Wilson3; 1University of California, Yreka, CA, 2University of California Cooperative Extension Tulare and Kings Counties, Tulare, CA, 3University of California, Tulelake, CA (34)

 

Feral rye (Secale cereale L.) Control in Winter Canola (Brassica napus) in the Pacific Northwest. Frank L. Young*1, Dale K. Whaley2, Ian C. Burke3, Dennis Roe4, Larry M. McGrew1; 1USDA-ARS, Pullman, WA, 2WSU, Watertown, WA, 3Washington State University, Pullman, WA, 4WSU, Pullman, WA (35)

 

Herbicide Resistant Wild Oat Occurrence in a Diverse Cropping System: A Case study. Edward S. Davis*, Fabian Menalled, William E. Dyer; Montana State University, Bozeman, MT (36)

 

†The Use of Safened Herbicides with Mesosulfuron Reduces Injury to Wheat. Shawn P. Wetterau*, Ian C. Burke, Jared L. Bell, Nevin Lawrence, Alan J. Raeder, Misha R. Manuchehri; Washington State University, Pullman, WA (37)

 

Effect of Pre-Harvest Desiccants on Canola Yield and Seed Quality. Brian M. Jenks*, Tiffany D. Walter, Gary P. Willoughby; North Dakota State University, Minot, ND (38)

 

†Differential Susceptibility of Bromus tectorum to ALS inhibiting Herbicides. Nevin Lawrence*, Ian C. Burke; Washington State University, Pullman, WA (39)

 

Brassica carinata Tolerance to Postemergence Herbicides. Nicholas A. Reichard*1, Prashant Jha1, Vipan Kumar1, Mandeep K. Riar1, Jaya R. KC2; 1Montana State University, Huntley, MT, 2Montana State Universtiy, Huntley, MT (40)

 

Evaluation of Pyroxasulfone for Crop Safety and Downy Brome Control in Winter Wheat. Mandeep K. Riar*1, Nicholas A. Reichard1, Prashant Jha1, Vipan Kumar1, Jaya R. KC2; 1Montana State University, Huntley, MT, 2Montana State Universtiy, Huntley, MT (41)

 

†Does Fertilizer Nitrogen Influence Crop-Weed Competition and Weed Response to Herbicides? Vipan Kumar*1, Prashant Jha1, Mandeep K. Riar1, Nicholas A. Reichard1, Jaya R. KC2; 1Montana State University, Huntley, MT, 2Montana State Universtiy, Huntley, MT (42)

 

Pyroxasulfone: Grass Weed Control and Winter Wheat Tolerance. Traci Rauch*, Joan Campbell, Donn Thill; University of Idaho, Moscow, ID (43)

 

†Arundo donax Response to Preemergence and Postemergence Herbicides. Amir Attarian*, Carol Mallory-Smith, Andrew Hulting; Oregon State University, Corvallis, OR (44)

 

Spring Wheat Response to Tank Mixing Fungicides with a Pyroxsulam Formulation and 2,4-D. Patricia L. Prasifka*1, Joseph P. Yenish2, Neil A. Spomer3, Roger E. Gast3; 1Dow AgroSciences, West Fargo, ND, 2Dow AgroSciences, Billings, MT, 3Dow AgroSciences, Indianapolis, IN (45)

 

Control of Downy (Bromus tectorum) and Japanese (Bromus japonicum) Brome in Winter Wheat (Triticum aestivum) in Western Canada. Eric N. Johnson*1, Cindy A. Gampe1, Brian L. Beres2, William M. Hamman3, Ken Coles4, Michael Gretzinger4; 1Agriculture and Agri-Food Canada, Scott, SK, 2Agriculture and Agri-Food Canada, Lethbridge, AB, 3Hamman Ag Research, Lethbridge, AB, 4Farming Smarter, Lethbridge, AB (46)

 

Evaluation of Sulfentrazone plus s-Metolachlor for Weed Control in No-Till Sunflower. Robert K. Higgins*1, Drew J. Lyon2; 1University of Nebraska Panhandle Research & Ext. Center, Sidney, NE, 2Washington State University, Pullman, WA (47)

 

Performance of Glyphosate for Weed Control in Colorado Under Dry Weather Conditions when Mixed with Two Acidic AMS Replacements. Jim T. Daniel*1, Philip Westra2, Scott K. Parrish3; 1Colorado State University, Keenesburg, CO, 2Colorado State University, Ft. Collins, CO, 3AgraSyst, Inc., Spokane, WA (48)

 

†Herbicide Programs for Weed Control in Clearfield® lentils. Jaya R. KC*1, Prashant Jha2, Vipan Kumar2, Nicholas A. Reichard2, Mandeep K. Riar2; 1Montana State Universtiy, Huntley, MT, 2Montana State University, Huntley, MT (49)

 

†Dose-Response Analysis of Glyphosate-Resistant Kochia Populations in Greenhouse and Outdoor Conditions. Amar S. Godar*1, Phillip W. Stahlman2; 1Kansas State University, Manhattan, KS, 2Kansas State Univ., Hays, KS (50)




TUESDAY  MORNING    MARCH 12

Teaching and Technology Transfer

 

*PRESENTER

 

BASF's On-Target Application Academy: Educating Growers. John C. Frihauf*, Walter E. Thomas, Steven J. Bowe, Luke L. Bozeman, Daniel Pepitone; BASF Corporation, Research Triangle Park, NC (51)

 

Extension Program Development for Weed Prevention. Earl Creech*, Ralph E. Whitesides; Utah State University, Logan, UT (52)

 

A Cost Calculation Model for Estimating Backpack Herbicide Treatment Using a Smart Wand, Slope, Weed Density, Weed Visibility, and Terrain. Bryan E. Dayton*, Ralph E. Whitesides; Utah State University, Logan, UT (53)

 

A Novel Microbially-Based Herbicidal Compound with Systemic Activity. Louis G. Boddy*, Ratnakar Asolkar, Christy Morgan, Matthew Robinson, Pam Marrone; Marrone Bio Innovations, Davis, CA (54)




TUESDAY  MORNING    MARCH 12

Basic Biology and Ecology

 

*PRESENTER     † STUDENT POSTER CONTEST

 

Is There a Cost of Herbicide Resistance?: Effects of Environmental and Biological Stressors on Herbicide Susceptible and Multiple Herbicide Resistant Wild oat (Avena fatua L.) Biotypes. Ethan Mayes*, Zachariah J. Miller, Fabian Menalled; Montana State University, Bozeman, MT

 

†Physiological and Genetic Comparison and Host Assay of Purple Nutsedge (Cyperus rotundus) and other plant species in Response to the Southern Root-Knot Nematode (Meloidognye incognita) and Nutsedge Root-Knot Nematode. Leslie A. Holland*1, Jill Schroeder1, Steve Thomas1, Leigh Murray2; 1New Mexico State University, Las Cruces, NM, 2Kansas State University, Manhattan, KS (55)

 

Role of Fungal Endophytes in Locoweed Wound Response. Barbara K. Keith*, David K. Weaver, Tracy M. Sterling; Montana State University, Bozeman, MT (56)

 

Characterizing Shade Avoidance Responses in Sugarbeet. Louise Lorent*1, Ryan E. Rapp2, David A. Claypool1, Andrew R. Kniss1; 1University of Wyoming, Laramie, WY, 2Monsanto Company, Scott, MS (57)

 

A Survey of the Distribution of Glyphosate-Resistance in Hairy Fleabane in California. Lynn M. Sosnoskie*1, Bradley D. Hanson1, Anil Shrestha2, Marie Jasieniuk1; 1University of California - Davis, Davis, CA, 2California State University - Fresno, Fresno, CA (58)

 

Soil Moisture Effects on Viability of Physically Dormant Weed Seeds. Brian J. Schutte*, Nina Klypin, Manoj Shukla; New Mexico State University, Las Cruces, NM (59)

 

Bioactivity and Dissipation of Pyroxasulfone Herbicide in Saskatchewan Soils. Anna M. Szmigielski*1, Jeff J. Schoenau1, Eric N. Johnson2; 1University of Saskatchewan, Saskatoon, SK, 2Agriculture and Agri-Food Canada, Scott, SK (60)




TUESDAY  MORNING    MARCH 12

General Session

LOCATION:   Kon Tiki Ballroom
TIME:   9:30 AM - 11:45 AM
MODERATOR:   Roger Gast
    Dow AgroSciences
    Indianapolis, IN

 

*SPEAKER

 

9:30   Introduction

 

9:40   Presidential Address. Kai Umeda*; University of Arizona Cooperative Extension, Phoenix, AZ (61)

 

10:00   WSSA and Regional Weed Science Societies – Director of Science Policy Update. Lee Van Wychen*; National and Regional Weed Science Societies, Alexandria, VA (62)

 

10:20   Two Centuries of Invasive Plants in Southern California. Carl Bell*1, Edith Allen2, Kim Weathers2, Milton McGiffen, Jr2, Chris McDonald3, John Eckhoff4, Marti Witter5; 1University of California Cooperative Extension, San Diego, CA, 2University of California Riverside, Riverside, CA, 3University of California Cooperative Extension San Bernardino, San Berandino, CA, 4California Department of Fish and Wildlife, San Diego, CA, 5US National Park Service, Santa Monica, CA (63)

 

10:45   Setting Priorities and Building Partnerships: A Key for UC IPM Success in Challenging Times. Kassim Al-Khatib*; University of California - IPM, Davis, CA (64)

 

11:10   Herbicide-Resistant Weeds Worldwide. Ian Heap*; International Survey of Herbicide Resistant Weeds, Corvallis, OR (65)




TUESDAY  AFTERNOON    MARCH 12

Weeds of Range and Natural Areas

LOCATION:   Macaw
TIME:   1:30 PM - 5:00 PM
CHAIR-ELECT:   Daniel Chad Cummings
    Dow AgroSciences LLC
    Perry, OK

 

*SPEAKER     † STUDENT CONTEST

 

1:30   †Influence of Plant Litter and Application Rate and Timing on Efficacy of Imazapic for Controlling Downy Brome. Krista A. Ehlert*, Jane Mangold, Richard Engel; Montana State University, Bozeman, MT (66)

 

1:45   †Crossing Yellow Starthistle and Meadow Knapweed to Determine if Hybrids Will Be Produced. John J. Miskella*, Andrew Hulting, Carol Mallory-Smith; Oregon State University, Corvallis, OR (67)

 

2:00   Ecosystem Resiliency and Tamarisk (saltcedar, Tamarix spp.) Management. Cameron Douglass*, Scott J. Nissen; Colorado State University, Fort Collins, CO (68)

 

2:15   Logging Debris and Herbicide Treatments for Controlling Scotch Broom. Timothy B. Harrington*1, Robert A. Slesak2, David H. Peter1; 1USDA Forest Service, Olympia, WA, 2University of Minnesota, Minneapolis, MN (69)

 

2:30   Do Source-Sink Population Dynamics Explain the Distribution of Anthriscus caucalis within Canyon Grassland Systems of Idaho? John M. Wallace*, Timothy S. Prather; University of Idaho, Moscow, ID (70)

 

2:45   Sublette County Invasive Species Taskforce; Cheatgrass Control a Growing Problem. Julie A. Kraft*; Sublette County Weed and Pest, Pinedale, WY (71)

 

3:00   Break

 

3:15   Aquatic Plant Management Challenges in Flowing Water Systems. Celestine A. Duncan*1, John Halpop2; 1Weed Management Services, Helena, MT, 2CES, Thompson Falls, MT (72)

 

3:30   Aminopyralid Research Summary for Aquatic Labeling. Vanelle F. Peterson*1, John J. Jachetta2, Patrick L. Havens2, Louise A. Brinkworth2, William N. Kline3, William T. Haller4, John L. Troth2; 1Dow AgroSciences, Mulino, OR, 2Dow AgroSciences, Indianapolis, IN, 3William N Kline, LLC, Ball Ground, GA, 4University of Florida, Gainesville, FL (73)

 

3:45   †Prescribed Burning and Imazapic Control on Downy Brome under Rangeland Conditions. Kallie C. Kessler*, K. George Beck, Scott J. Nissen, James R. Sebastian; Colorado State University, Ft. Collins, CO (74)

 

4:00   †Does Spotted Knapweed Alter Pollinator Visitation in Native Plant Communities? Christina Herron-Sweet*, Jane Mangold, Erik Lehnhoff, Laura Burkle, Jeffrey Littlefield; Montana State University, Bozeman, MT (75)

 

4:15   Integrating Imazapic and a Fungal Pathogen to Control Downy Brome (Bromus tectorum). Jane Mangold*, Krista A. Ehlert, Richard Engel; Montana State University, Bozeman, MT (76)

 

4:30   †Restoration Species Tolerance to Herbicides. Thomas J. Getts*1, Philip Westra2, Tim D'Amato3, Bobby Goeman3; 1Colorado State University, Fort Collins, CO, 2Colorado State University, Ft. Collins, CO, 3Larimer County Weed District, Fort Collins, CO (77)

 

4:45   †An Ecologically Based Integrated Management approach to Control Sericea Lespedeza (Lespedeza cuneata) in Native Rangeland. Valerie K. Cook Fletcher*; Oklahoma State University, Stillwater, OK (78)




TUESDAY  AFTERNOON    MARCH 12

Weeds of Horticultural Crops

LOCATION:   Toucan
TIME:   1:30 PM - 5:45 PM
CHAIR-ELECT:   Lynn Sosnoskie
    University of California - Davis
    Davis, CA
MODERATOR:   Lynn Sosnoskie
    University of California - Davis
    Davis, CA

 

*SPEAKER     † STUDENT CONTEST

 

1:30   Efficacy of Granular Preemergence Herbicides to Control Chamaesyce spp. in Nursery Containers. Kelly M. Young*; University of Arizona, Phoenix, AZ (79)

 

1:45   Preemergence Herbicide Trials in California Bell Peppers. Michelle Le Strange*1, Richard F. Smith2; 1University of California Cooperative Extension, Tulare, CA, 2University of California Cooperative Extension, Salinas, CA (80)

 

2:00   Effects of Glyphosate Carryover in Seed Potato Tubers. Pamela Hutchinson*1, Joel Felix2, Rick Boydston3, Brent R. Beutler1; 1University of Idaho, Aberdeen, ID, 2Oregon State University, Ontario, OR, 3USDA-ARS, Prosser, WA (81)

 

2:15   Chemigating Pronamide With Split Applications on Lettuce. Jesse Richardson*1, Barry Tickes2, Richard Mann3; 1Dow AgroSciences, Hesperia, CA, 2University of Arizona, Yuma, AZ, 3Dow AgroSciences, Indianapolis, IN (82)

 

2:30   Weed Control in Grape Vineyards with Flazasulfuron. Dennis J. Tonks*1, Melvin R. Grove2; 1ISK Biosciences, Kearney, MO, 2ISK Biosciences, Spring, TX (83)

 

2:45   Evaluating Mesotrione for Crop Safety and Weed Control Efficacy in Grape and Walnut. Lynn M. Sosnoskie*1, Bradley D. Hanson1, Derrick Hammons2; 1University of California - Davis, Davis, CA, 2Syngenta, Esparto, CA (84)

 

3:00   Break

 

3:15   †Herbicide Evaluation for Dahlia in Western Washington. Yushan Duan*1, Timothy W. Miller2, Carl R. Libbey2; 1Washington State University, Pullman, WA, 2Washington State University, Mount Vernon, WA (85)

 

3:30   The Effect of Combined Solarization and Destabilized Green Waste Composting on Weed Seed Mortality and Soil Biology. James J. Stapleton*1, Ruth M. Dahlquist2, Dee Ann Kroeker1, Christopher W. Simmons3, Megan N. Marshall4, Jean S. VanderGheynst3; 1University of California, Parlier, CA, 2Fresno Pacific University, Fresno, CA, 3University of California, Davis, CA, 4The Pennsylvania State University, State College, PA (86)

 

3:45   What's The Fit For Roundup Ready Alfalfa? Robert G. Wilson*; University of Nebraska-Lincoln, Scottsbluff, NE (87)

 

4:00   Dry Bean Tolerance to Flumioxazin. Robert G. Wilson*; University of Nebraska-Lincoln, Scottsbluff, NE (88)

 

4:15   Rotational Crop Response to Fomesafen Soil Residues one Year after Application. Joel Felix*; Oregon State University, Ontario, OR (89)

 

4:30   †Meadowfoam Seed Meal Effects on Weed and Soil Microbial Communities. Suphannika Intanon*, Andrew Hulting, Carol Mallory-Smith; Oregon State University, Corvallis, OR (90)




TUESDAY  AFTERNOON    MARCH 12

Weeds of Agronomic Crops

LOCATION:   Kon Tiki Ballroom
TIME:   1:30 PM - 5:15 PM

 

*SPEAKER     † STUDENT CONTEST

 

1:30   †Fertility of Wheat x Jointed Goatgrass (Aegilops cylindrica Host.) First Generation Backcross Progenies. Craig Beil*1, Philip Westra2, Pat Byrne1; 1Colorado State University, Fort Collins, CO, 2Colorado State University, Ft. Collins, CO (91)

 

1:45   †Investigating the Mechanism of Glyphosate Resistance in Nineteen Giant Ragweed Accessions. Christopher R. Van Horn*1, Philip Westra2; 1Colorado State University, Fort Collins, CO, 2Colorado State University, Ft. Collins, CO (92)

 

2:00   Weed Control in California Rice with Imazosulfuron plus Thiobencarb (League MVPTM)  . Patrick A. Clay*1, Tom Dewitt2, John Pawlak3, Frank Carey4; 1Valent U.S.A. Corporation, Maricopa, AZ, 2Valent U.S.A. Corporation, Fresno, CA, 3Valent U.S.A. Corporation, Lansing, MI, 4Valent U.S.A. Corporation, Olive Branch, MS (93)

 

2:15   Efficacy of Penoxsulam and Oxyfluorfen on Problematic Weed Species in Tree Nuts. Deb Shatley*1, Richard Mann2, James Mueller3, Byron B. Sleugh4, Jesse Richardson5; 1Dow AgroSciences, Lincoln, CA, 2Dow AgroSciences, Indianapolis, IN, 3Dow AgroSciences, Brentwood, CA, 4Dow AgroSciences, West Des Moines, IA, 5Dow AgroSciences, Hesperia, CA (94)

 

2:30   †Dissipation of Pyroxasulfone Under Minimum, Strip, and Conventional Till Furrow Irrigated Corn in Northern Colorado. Jordan A. Driscoll*1, Philip Westra2, Neil Hansen1, Troy Bauder1, Erik Wardle1; 1Colorado State University, Fort Collins, CO, 2Colorado State University, Ft. Collins, CO (95)

 

2:45   †Effects of pH on Pyroxsulam Adsorption and Desorption in Inland Pacific Northwest Silt Loam Soils. Alan J. Raeder*1, Ian C. Burke1, Joseph P. Yenish2, Roger E. Gast3; 1Washington State University, Pullman, WA, 2Dow AgroSciences, Billings, MT, 3Dow AgroSciences, Indianapolis, IN (96)

 

3:00   Break

 

3:15   Corn Response to Nitrogen Rates and Timing of Weed Control. Gregory J. Endres*, Blaine G. Schatz, Michael Ostlie; NDSU, Carrington, ND (97)

 

3:30   Broadleaf Weed Control in Field Corn with Preemergence Followed by Sequential Postemergence Herbicides. Richard N. Arnold*, Margaret M. West, Kevin A. Lombard; New Mexico State University ASC, Farmington, NM (98)

 

3:45   †Sheep Fescue (Festuca ovina L.) Response to Herbicides and Environment. Shawn P. Wetterau*, Ian C. Burke; Washington State University, Pullman, WA (99)

 

4:00   †Glyphosate-Resistant Kochia Control in Corn-Sugarbeet Rotations. Jared C. Unverzagt*1, Andrew R. Kniss1, Robert G. Wilson2; 1University of Wyoming, Laramie, WY, 2University of Nebraska-Lincoln, Scottsbluff, NE (100)

 

4:15   Integrated Herbicide Programs for Weed Management in Glyphosate-Resistant Sugar Beet. Vipan Kumar*1, Prashant Jha1, Nicholas A. Reichard1, Mandeep K. Riar1, Jaya R. KC2; 1Montana State University, Huntley, MT, 2Montana State Universtiy, Huntley, MT (101)

 

4:30   Sainfoin (Onobrychis viciifolia) Tolerance to Postemergence Herbicides. Ryan E. Rapp*1, Andrew R. Kniss2, Jared C. Unverzagt2; 1Monsanto Company, Scott, MS, 2University of Wyoming, Laramie, WY (102)

 

4:45   What's Old is New Again:  Fiber and Oilseed Flax Production in the Willamette Valley of Oregon? Andrew G. Hulting*, Kyle C. Roerig, Daniel W. Curtis, Carol Mallory-Smith; Oregon State University, Corvallis, OR (103)

 

5:00   Use of Maleic Hydrazide for Volunteer Chicory Management in Spring Wheat. Don W. Morishita*, Donald L. Shouse, Andy Nagy; University of Idaho, Kimberly, ID (104)




TUESDAY  AFTERNOON    MARCH 12

Basic Biology and Ecology

LOCATION:   Boardroom
TIME:   1:30 PM - 5:00 PM
CHAIR-ELECT:   Brian Schutte
    New Mexico State University
    Las Cruces, NM
MODERATOR:   Brian Schutte
    New Mexico State University
    Las Cruces, NM

 

*SPEAKER     † STUDENT CONTEST

 

1:30   Evolution and Spread of Glyphosate Resistance in Horseweed and Hairy Fleabane in California Orchards and Vineyards. Marie Jasieniuk*1, Miki Okada1, Bradley D. Hanson1, Kurt J. Hembree2, Anil Shrestha3, Steven D. Wright4; 1University of California - Davis, Davis, CA, 2University of California Cooperative Extension Fresno County, Fresno, CA, 3California State University - Fresno, Fresno, CA, 4University of California Cooperative Extension Tulare and Kings Counties, Tulare, CA (105)

 

1:45   A Growing Degree Day Model for Phenological Development of Hairy Fleabane (Conyza bonariensis). Anil Shrestha*1, Bradley D. Hanson2, Kurt J. Hembree3, Marie Jasieniuk2, Steven D. Wright4; 1California State University - Fresno, Fresno, CA, 2University of California - Davis, Davis, CA, 3University of California Cooperative Extension Fresno County, Fresno, CA, 4University of California Cooperative Extension Tulare and Kings Counties, Tulare, CA (106)

 

2:00   Effect of Height and Seeding Rate on Spring Wheat - Wild Oat (Avena fatua) Interaction. Zachariah Miller, Luther Talbert, Fabian Menalled*; Montana State University, Bozeman, MT (107)

 

2:15   †Eco-Efficiency of Herbicide Treatments in Conventional and Glyphosate-Resistant Sugarbeet Production. Carl W. Coburn*, Andrew R. Kniss; University of Wyoming, Laramie, WY (108)

 

2:30   †The Evaluation of Simulated 2,4-D and Dicamba Drift on Winter Canola in Oklahoma. Samantha K. Ambrose*, Chad B. Godsey, Sarah Lancaster; Oklahoma State University, Stillwater, OK (109)

 

2:45   †Using Climate Modeling to Project Development of Bromus tectorum in the Pacific Northwest. Nevin Lawrence*1, Ian C. Burke1, John Abatzoglou2, Daniel A. Ball3; 1Washington State University, Pullman, WA, 2University of Idaho, Moscow, ID, 3Oregon State University, Pendleton, OR (110)

 

3:00   Break

 

3:15   †Evaluating Tree Response to Aminocyclopyrachlor Ground Application. Curtis M. Hildebrandt*1, Philip Westra2; 1Colorado State University, Fort Collins, CO, 2Colorado State University, Ft. Collins, CO (111)

 

3:30   Impact of Cover Crop Termination Through Sheep Grazing on Weed Community Structure. Sean McKenzie, Hayes Goosey, Kevin O'Neill, Fabian Menalled*; Montana State University, Bozeman, MT (112)

 

3:45   Regional and Whole Plant EPSPS Gene Amplification in Glyphosate Resistant Kochia. Philip Westra*1, Andrew Wiersma1, Jan Leach1, A.S.N. Reddy1, Phillip W. Stahlman2; 1Colorado State University, Ft. Collins, CO, 2Kansas State Univ., Hays, KS (113)




WEDNESDAY  MORNING    MARCH 13

Weeds of Agronomic Crops

LOCATION:   Macaw
TIME:   9:30 AM - 11:30 AM

 

*SPEAKER     † STUDENT CONTEST

 

9:30   †Effect of Wheat Population on Wheat Yield and Yield Parameters: A Case for Increasing Planting Rates. Rachel Unger*, Misha R. Manuchehri, Ian C. Burke, Mark E. Swanson; Washington State University, Pullman, WA (114)

 

9:45   †Management of Avena fatua L., R. Dentatu L., Helianthus annuus L., Triticum aestivum L. and Zea mays L. by Exploiting Carica papaya L. Allelopathy, as Bio-Herbicide. Tauseef Anwar*; PMAS Arid Agriculture University, Rawalpindi, Pakistan (115)

 

10:00   Discovery of Glyphosate Resistant Palmer Amaranth in Arizona. William B. McCloskey*1, Lydia M. Brown2; 1University of Arizona, Tucson, AZ, 2University of Arizona, Maricopa, AZ (116)

 

10:15   †Evaluating the Interaction Between Herbicide and Fertilizer Application Timing to Improve Italian Ryegrass Control, Grain Quality, and Yield in Oklahoma Wheat Production. Steven R. Calhoun*; Oklahoma State University, Ninnekah, OK (117)

 

10:30   †Weed Control with Postemergence Herbicide Combinations in Dry Bean. Andrew R. Kniss, Louise Lorent*, David A. Claypool; University of Wyoming, Laramie, WY (118)

 

10:45   Dry Bean Response to Preemergence Flumioxazin. Andrew R. Kniss*, David A. Claypool; University of Wyoming, Laramie, WY (119)

 

11:00   Dry Bean Response to Preemergence Sulfentrazone Plus S-Metolachlor. David A. Claypool*, Andrew R. Kniss; University of Wyoming, Laramie, WY (120)

 

11:15   Cross Spectrum Efficacy of Pyroxsulam on Grasses and Broadleaf Weeds in California and Arizona Cereals. Byron B. Sleugh*1, Jesse Richardson2, Deb Shatley3, Roger E. Gast4; 1Dow AgroSciences, West Des Moines, IA, 2Dow AgroSciences, Hesperia, CA, 3Dow AgroSciences, Lincoln, CA, 4Dow AgroSciences, Indianapolis, IN (121)




WEDNESDAY  MORNING    MARCH 13

Weeds of Horticultural Crops

LOCATION:   Boardroom
TIME:   10:30 AM - 11:30 AM
CHAIR-ELECT:   Lynn Sosnoskie
    University of California - Davis
    Davis, CA
MODERATOR:   Lynn Sosnoskie
    University of California - Davis
    Davis, CA

 

*SPEAKER     † STUDENT CONTEST

 

10:30   Dithiopyr: New Developments for Post Emergent Crabgrass Control in the Western and Southern U.S. Vanelle F. Peterson*1, James M. Breuninger2, Daniel D. Loughner3, Anita L. Alexander4, Mike D. Lees5, James T. Brosnan6, Gregory K. Breeden6, Barry Brecke7, Ramon Leon8, Scott McElroy9, Michael Flessner9; 1Dow AgroSciences, Mulino, OR, 2Dow AgroSciences, Indianapolis, IN, 3Dow AgroSciences, Lawrenceville, NJ, 4Dow AgroSciences, Lawrenceville, GA, 5Dow AgroSciences, Granite Bay, CA, 6University of Tennessee, Knoxville, TN, 7University of Florida, Milton, FL, 8University of Florida, Jay, FL, 9Auburn University, Auburn, AL (122)

 

10:45   Performance and Efficacy of Amicarbazone and Methiozolin for Poa annua Management in Desert Turfgrasses. Kai Umeda*1, David Kopec2; 1University of Arizona Cooperative Extension, Phoenix, AZ, 2University of Arizona, Tucson, AZ (123)

 

11:00   New Approaches to Manage Difficult to Control Turfgrass Weeds in Hawaii. Kai Umeda*1, Joseph DeFrank2, Orville Baldos2, Scott Lukas2, Craig Okazaki2; 1University of Arizona Cooperative Extension, Phoenix, AZ, 2University of Hawaii, Honolulu, HI (124)

 

11:15   Advances in Control of Diuron Resistant Annual Bluegrass (Poa annua) in Cool Season Grasses Grown for Seed. Daniel W. Curtis*, Andrew Hulting, Carol Mallory-Smith, Kyle C. Roerig; Oregon State University, Corvallis, OR (125)




WEDNESDAY  AFTERNOON    MARCH 13

Weeds of Range and Natural Areas

LOCATION:   Toucan
TIME:   1:45 PM - 5:00 PM
CHAIR-ELECT:   Daniel Chad Cummings
    Dow AgroSciences LLC
    Perry, OK

 

*SPEAKER     † STUDENT CONTEST

 

1:45   Response of Duncecap Larkspur and Associated Vegetation to Aminocyclopyrachlor. Brandon J. Greet*, Andrew R. Kniss, Brian A. Mealor; University of Wyoming, Laramie, WY (126)

 

2:00   †Effects of Integrated Downy Brome Management Two Years After Treatment. Heather Elwood*, Corey V. Ransom; Utah State University, Logan, UT (127)

 

2:15   †The Impact of Tall Buttercup (Ranunculus acris) on Plant Diversity and Productivity. Hally K. Berg*; Montana State University, Bozeman, MT (128)

 

2:30   The Use of Herbicides to Reduce Fuel Loads from Weedy Annual Grasses in Central Oregon. Gustavo M. Sbatella*, Sasha Twelker; Oregon State University, Madras, OR (129)

 

2:45   Factors Affecting Herbicide Selection and Use in Plant Community Restoration Programs. Robert A. Masters*1, Mary B. Halstvedt2, Louise A. Brinkworth3, Daniel Chad Cummings4; 1Dow AgroSciences LLC, Indianapolis, IN, 2Dow AgroSciences LLC, Billings, MT, 3Dow AgroSciences, Indianapolis, IN, 4Dow AgroSciences LLC, Perry, OK (130)

 

3:00   Chemical Control of English ivy (Hedera helix). Joseph Thomas*1, Gregory R. Armel2, James T. Brosnan1, Jose J. Vargas1; 1University of Tennessee, Knoxville, TN, 2BASF, Research Triangel Park, NC (131)

 

3:15   Do Soils Impacted by Tamarix spp. Affect the Success of Restoration Projects Through Altered Soil Chemistry and/or Plant-Soil Feedbacks? Erik Lehnhoff, Fabian Menalled*; Montana State University, Bozeman, MT (132)

 

3:30   Break

 

3:45   Invasive Plant Mapping and Management Prioritization Workshop




WEDNESDAY  AFTERNOON    MARCH 13

Education and Regulatory

LOCATION:   Boardroom
TIME:   2:00 PM - 5:45 PM
MODERATOR:   Brad Hanson
    Univ. of California, Davis
    Davis, CA

 

*SPEAKER

 

2:00   Organizing plant photographs using Adobe Lightroom. Robert F. Norris*; University of California, Davis, CA (133)

 

2:15   A Generalized Framework for Teaching and Interpreting Plant Invasion and Management. Brian A. Mealor*; University of Wyoming, Laramie, WY (134)

 

2:30   Does Acidic AMS Replacement Adjuvants Condition Water? Rich Zollinger*, Kirk Howatt; North Dakota State University, Fargo, ND (135)

 

2:45   Aminopyralid Residue Impacts on Potatoes and Weeds. Steven Seefeldt*1, Rick Boydston2, Phil Kaspari3; 1University of Alaska Fairbanks, Fairbanks, AK, 2USDA-ARS, Prosser, WA, 3University of Alaska Fairbanks, Delta Junction, AK (136)

 

3:00   Introduction

 

3:05   Prospects for Biofuel Feedstock Crops in California. Steve Kaffka*1, Nick George2, Santiago Burcaram3; 1UC Davis, Davis, CA, 2California Biomass Collaborative, Davie, CA, 3California Biomass Collaborative, Davis, CA (137)

 

3:20   Agronomic Aspects of Growing Switchgrass and other Cellulosic Biofuel Crops in California. Robert Hutmacher*1, Daniel Putnam2, Steven D. Wright3, Gabriel Pedroso2, Christopher DeBen2, Steve Kaffka2, Gerardo Banuelos4; 1UC Davis, Five Points, CA, 2UC Davis, Davis, CA, 3University of California Cooperative Extension Tulare and Kings Counties, Tulare, CA, 4University of California Cooperative Extension Tulare Co., Tulare, CA (138)

 

3:35   Break

 

3:50   Weed Control Research and Challenges in California Biofuel Crops. Steven D. Wright*1, Kurt J. Hembree2, Robert Hutmacher3, Daniel Putnam4, Gerardo Banuelos5, Gabriel Pedroso4; 1University of California Cooperative Extension Tulare and Kings Counties, Tulare, CA, 2University of California Cooperative Extension Fresno County, Fresno, CA, 3UC Davis, Five Points, CA, 4UC Davis, Davis, CA, 5University of California Cooperative Extension Tulare Co., Tulare, CA (139)

 

4:05   Risk Assessment of the Potential for Biofuel Crops to Become Weedy Invaders in California. Joseph M. DiTomaso*; University of California, Davis, CA (140)

 

4:20   Discussion




WEDNESDAY  AFTERNOON    MARCH 13

Weeds of Agronomic Crops

LOCATION:   Macaw
TIME:   3:45 PM - 5:00 PM

 

*SPEAKER     † STUDENT CONTEST

 

3:45   Management of Multiple Resistant Italian Ryegrass in Winter Wheat with Pyroxasulfone. Kyle C. Roerig*, Daniel W. Curtis, Andrew Hulting, Carol Mallory-Smith; Oregon State University, Corvallis, OR (141)

 

4:00   Does Pyroxsulam Provide Effective Control of Persian Darnel, Green Foxtail, and Yellow Foxtail? Joseph P. Yenish*1, Patricia L. Prasifka2, Neil A. Spomer3, Kevin D. Johnson4, Roger E. Gast3; 1Dow AgroSciences, Billings, MT, 2Dow AgroSciences, West Fargo, ND, 3Dow AgroSciences, Indianapolis, IN, 4Dow AgroSciences, Danville, IL (142)

 

4:15   Performance of Thiencarbazone-methyl + Pyrasulfotole + Bromoxynil in Wheat in the Northern Plains. Steven R. King*1, Dean W. Maruska2, Kevin B. Thorsness3, Michael C. Smith4, George S. Simkins5, Charles P. Hicks6, Mark A. Wrucke7; 1Bayer CropScience, Huntley, MT, 2Bayer CropScience, Warren, MN, 3Bayer CropScience, Fargo, ND, 4Bayer CropScience, Sabin, MN, 5Bayer CropScience, Vadnais Heights, MN, 6Bayer CropScience, Fort Collins, CO, 7Bayer CropScience, Farmington, MN (143)

 

4:30   Effect of Droplet Size on Weed Control with Dicamba and Glyphosate Tank-Mixtures Applied with Commercial Sprayers. Brian L. Olson*1, Christopher D. Kamienski2, Joe Sandbrink3, Kirk Remund3, Jeff N. Travers3; 1Monsanto Company, Colby, KS, 2Monsanto Company, Washington, IL, 3Monsanto Company, St. Louis, MO (144)

 

4:45   Advancements in Developing Roundup® Xtend™ Glyphosate/ Dicamba Premix Formulations. Jeff N. Travers*1, Alison MacInnes2, Dan Wright2, Joe Sandbrink1, Ewa Urbanczyk-Wochniak2, Doug Findley2, J. Andrew Kendig2; 1Monsanto Company, St. Louis, MO, 2Monsanto, St. Louis, MO (145)




THURSDAY  MORNING    MARCH 14

Weeds of Range and Natural Areas

LOCATION:   Toucan
TIME:   9:30 AM - 11:15 AM
CHAIR-ELECT:   Daniel Chad Cummings
    Dow AgroSciences LLC
    Perry, OK
MODERATOR:   Daniel Chad Cummings
    Dow AgroSciences LLC
    Perry, OK

 

*SPEAKER     † STUDENT CONTEST

 

9:30   Aminopyralid Plus Clopyralid for Mesquite Control: Second Year Research and Individual Plant Treatment Update. Daniel Chad Cummings*1, Vernon B. Langston2, Charles Hart3, Louise A. Brinkworth4; 1Dow AgroSciences LLC, Perry, OK, 2Dow AgroSciences LLC, The Woodlands, TX, 3Dow AgroSciences LLC, Stephenville, TX, 4Dow AgroSciences, Indianapolis, IN (146)

 

9:45   Two-year Effects of Aminopyralid on an Invaded Meadow in the Washington Cascades. Timothy B. Harrington*1, David H. Peter1, Warren D. Devine2; 1USDA Forest Service, Olympia, WA, 2University of Washington, Seattle, WA (147)

 

10:00   Invasive Weed Control with Aminocyclopyrachlor in North Dakota. Rodney G. Lym*; North Dakota State University, Fargo, ND (148)

 

10:15   Effectiveness of Glyphosate Tank Mixtures with Clethodim or Imazapic for Control of Buffelgrass (Cenchrus ciliaris). Travis M. Bean*, William B. McCloskey; University of Arizona, Tucson, AZ (149)

 

10:30   Rangeland Weed Control with Aminocyclopyrachlor. Jeff H. Meredith1, Stephen F. Colbert*2; 1DuPont Crop Protection, Memphis, TN, 2DuPont Crop Protection, Escalon, CA (150)

 

10:45   Efficacy of Indaziflam for Weed Control on Roadsides and Rail in the West. Hans C. Olsen*1, David Spak2; 1Bayer CropScience, Wildomar, CA, 2Bayer CropScience, Cary, NC (151)

 

11:00   Prioritizing Invasive Plant Inventory Targets: San Diego National Wildlife Refuge Inventory Outcomes. Corey V. Ransom*, Kimberly A. Edvarchuk, Heather Elwood; Utah State University, Logan, UT (152)




THURSDAY  MORNING    MARCH 14

Weeds of Agronomic Crops

LOCATION:   Macaw
TIME:   9:30 AM - 11:15 AM

 

*SPEAKER     † STUDENT CONTEST

 

9:30   Why I Cannot Use Tillage To Control Weeds. Robert N. Klein*; University of Nebraska, North Platte, NE (153)

 

9:45   Kochia Management Without Glyphosate in Montana. Prashant Jha*, Vipan Kumar, Nicholas A. Reichard; Montana State University, Huntley, MT (154)

 

10:00   Glyphosate-Resistant Kochia on the Canadian Prairies. Robert E. Blackshaw*1, Hugh J. Beckie2, Ryan Low3, Linda M. Hall3; 1Agriculture and Agri-Food Canada, Lethbridge, AB, 2Agriculture and Agri-Food Canada, Saskatoon, SK, 3University of Alberta, Edmonton, AB (155)

 

10:15   Prevalence of Glyphosate-resistant Kochia in Kansas and Effectiveness of Alternative Management Practices. . Amar S. Godar*1, Phillip W. Stahlman2; 1Kansas State University, Manhattan, KS, 2Kansas State Univ., Hays, KS (156)

 

10:30   Preemergence Dicamba Dose Response Curves For Kochia Control Followed by Paraquat Tank Mixes. Randall S. Currie*1, Curtis R. Thompson2, Phillip W. Stahlman3; 1Kansas State Univ., Garden City, KS, 2Kansas State Univ., Manhattan, KS, 3Kansas State Univ., Hays, KS (157)

 

10:45   Management of Glyphosate Resistant Kochia in Fallow using Isoxaflutole, Pyrasulfotole and Tembotrione based programs. Charles P. Hicks*1, Greg Hudec2, Jim Bloomberg3; 1Bayer CropScience, Fort Collins, CO, 2Bayer CropScience, Manhatten, KS, 3Bayer CropScience, Raleigh, NC (158)

 

11:00   Glyphosate-Resistant Kochia: Herbicide Solutions for a Growing Problem. Brad Lindenmayer*1, Pete Forster2, Les Glasgow3, Philip Westra4, Phillip W. Stahlman5; 1Syngenta Crop Protection, Fort Collins, CO, 2Syngenat Crop Protection, Eaton, CO, 3Syngnta Crop Protection, Greensboro, NC, 4Colorado State University, Ft. Collins, CO, 5Kansas State Univ., Hays, KS (159)