PROGRAM

MONDAY  AFTERNOON    FEBRUARY 7

Section 1. Agronomic Crops

 

*PRESENTER

 

Dry Bean Tolerance to Halosulfuron Applied Postemergence. N. Soltani*1, R. E. Nurse2, C. Shropshire1, P. H. Sikkema1; 1University of Guelph, Ridgetown, ON, 2Agriculture and Agri-Food Canada, Harrow, ON (1)

 

Evaluation of Herbicides to Control Suspected ALS Resistant Solanum ptycanthum. K. M. Vollmer*1, H. Wilson2, T. Hines2; 1Virginia Tech, Blacksburg, VA, 2Virginia Tech, Painter, VA (2)

 

Current Status of Weed Infestation in Soybean RR in Parana State, in Southern Brazil. F. S. Adegas*; Embrapa, Londrina, Brazil (3)

 

Carryover Potential of Herbicides Used for Conyza Sp. Control. D. G. Alonso*1, J. Constantin1, R. S. Oliveira Jr.1, W. C. Koskinen2, A. Oliveira Neto1, H. A. Dan1, N. Guerra1; 1Universidade Estadual de Maringá, Maringá, Brazil, 2USDA-ARS/University of Minnesota, St. Paul, MN (4)

 

Four Years of Dicamba-tolerant Soybeans in Kentucky. S. Carter*1, C. Slack1, S. Seifert-Higgins2; 1University of Kentucky, Lexington, KY, 2Monsanto Company, St. Louis, MO (5)

 

Soybean Spacing and Growing Habit and its Relationship with Weed Competition. F. S. Adegas*; Embrapa, Londrina, Brazil (6)

 

Confirmation of Glyphosate-resistant Conyza canadensis in Oklahoma. J. Armstrong*; Oklahoma State University, Stillwater, OK (7)

 

Susceptible Wild Oat (Avena fatua) Endangered in Manitoba. H. J. Beckie*, C. Lozinski, S. Shirriff; Agriculture and Agri-Food Canada, Saskatoon, SK (8)

 

Multiple Herbicide-resistant Sagittaria montevidensis Population in Santa Catarina State (Brazil) Rice Fields. J. A. Noldin*, D. S. Eberhardt; Epagri, Itajai, Brazil (9)

 

Row Spacing and Population Effects in Two Dry Bean Classes. R. C. Holmes*, C. L. Sprague; Michigan State University, East Lansing, MI (10)

 

Comparison of Soybean Varieties with Different Herbicide-resistant Traits. C. L. Sprague*, G. E. Powell, E. C. Taylor; Michigan State University, East Lansing, MI (11)

 

Peanut Response to Fomesafen Applied at Different Timings and Rates. P. A. Dotray*1, W. Grichar2, E. P. Prostko3, J. Ferrell4, D. L. Jordan5, L. V. Gilbert6; 1Texas Tech University, Lubbock, TX, 2Texas AgriLife Research, Beeville, TX, 3University of Georgia, Tifton, GA, 4University of Florida, Gainesville, FL, 5North Carolina State University, Raleigh, NC, 6Texas AgriLife Research, Lubbock, TX (12)

 

Herbicide Programs for Optimum® GAT® Soybeans. D. W. Saunders*1, S. K. Rick2, K. D. Johnson3; 1DuPont Crop Protection, Johnston, IA, 2DuPont Crop Protection, Waterloo, IL, 3DuPont Crop Protection, Grand Forks, ND (13)

 

Dicamba Tolerant Soybean in Nebraska No-till Production Systems. M. L. Bernards*1, V. Mannam1, S. Seifert-Higgins2; 1University of Nebraska-Lincoln, Lincoln, NE, 2Monsanto Company, St. Louis, MO (14)

 

Response of Giant Reed to Postemergence Sugarcane Herbicides. D. C. Odero*; University of Florida, Belle Glade, FL (15)

 

Effects of Mesosulfuron on the Growth of Six Winter Wheat Varieties. M. R. Manuchehri*1, I. C. Burke1, T. Rauch2, D. A. Ball3, D. Thill2; 1Washington State University, Pullman, WA, 2University of Idaho, Moscow, ID, 3Oregon State University, Pendleton, OR (16)

 

Mid Season Control of Browntop Millet in Soybean. W. Molin*; USDA-ARS, Stoneville, MS (17)

 

Tolerance of Widestrike Cotton Varieties to Glufosinate. D. M. Dodds*1, L. Barber2, G. D. Collins3, C. L. Main4; 1Mississippi State University, Mississippi State, MS, 2University of Arkansas, Little Rock, AR, 3University of Georgia, Tifton, GA, 4University of Tennessee, Jackson, TN (18)

 

Comparison of Alion Performance Between Fall or Spring Applications in Orchards Across the United States. S. A. Gersdorf*1, D. Unland2, M. Anderson3; 1Bayer CropScience, Monmouth, OR, 2Bayer CropScience, Research Triangle Park, NC, 3Bayer CropScience, Spangle, WA (19)

 

Global Distribution of Glyphosate Resistant Weeds. I. M. Heap*; WeedSmart, Corvallis, OR (20)

 

Effect of Manganese on Glyphosate Activity. N. Soltani*, C. Shropshire, P. H. Sikkema; University of Guelph, Ridgetown, ON (21)

 

Herbicide Programs for Enhanced Glyphosate-resistant and Glufosinate-resistant Cotton. D. S. Riar*, J. K. Norsworthy, G. M. Griffith; University of Arkansas, Fayetteville, AR (22)

 

Comparisons of Various Hexazinone Formulations on Weed Efficacy in Alfalfa. L. K. Hinrichs*; Helena Chemical Company, Memphis, TN (23)

 

Wheat Contributes to Weed Control as a Rotational Crop in Kentucky. J. R. Martin*, C. R. Tutt, D. L. Call; University of Kentucky, Princeton, KY (24)

 

Organic and Herbicide-free Systems Applied to Old Conservation Tillage Plots: The Weed Management Challenge. A. Legere*1, C. Stevenson2, A. Vanasse3, O. Lalonde3; 1Agriculture and Agri-Food Canada, Saskatoon, SK, 2Private Consultant, Saskatoon, SK, 3Université Laval, Québec, QC (25)

 

Glufosinate Effects on Nitrogen Nutrition, Growth, and Yield of Glufosinate-resistant and Glufosinate-sensitive Soybean. K. N. Reddy*1, R. M. Zablotowicz1, N. Bellaloui1, W. Ding2; 1USDA-ARS, Stoneville, MS, 2Northeast Agricultural University, Harbin, Peoples Republic (26)

 

Weed Stress Duration Effects on Soybean Gene Expression and Yield. S. A. Hansen*1, S. A. Clay1, D. P. Horvath2, G. Reicks1; 1South Dakota State University, Brookings, SD, 2USDA-ARS, Fargo, ND (27)

 

Camelina Tolerance to Soil-applied Herbicides. P. Jha*1, R. Stougaard2, J. O. Garcia1; 1Montana State University, Huntley, MT, 2Montana State University, Kalispell, MT (28)

 

Herbicides for Weed Management in Perennial Grasses Grown for Biofuel. R. Van Acker, J. O'Sullivan*, R. Grohs, R. Riddle; University of Guelph, Simcoe, ON (29)

 

BAS 810H:Application Timing and Rate for Improved Crop Safety and Weed Control in Spring Wheat. A. Anand*1, P. Jha2, J. O. Garcia2; 1Montana State University, Bozeman, MT, 2Montana State University, Huntley, MT (30)

 

Modeling “Habitat Suitability” for a Herbicide Resistant Weed using a Species Distribution Model and Presence-only Data. L. Wiles*1, S. Kumar2, V. M. Davis3, B. Johnson4; 1USDA-ARS, Fort Collins, CO, 2Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO, 3University of Illinois, Urbana, IL, 4Purdue University, West Lafayette, IN (31)

 

Resistance to Herbicides in Phalaris spp. and Avena fatua in the Bajío Region of Mexico. T. Medina-Cazares*1, R. Alarcón-Reverte2, J. C. Streibig3, A. J. Fischer2; 1INIFAP, Celaya, Mexico, 2University of California, Davis, Davis, CA, 3Royal Veterinary and Agricultural University, Thovarldsenvej, Denmark (32)

 

Can Inter-row Soil Disturbance at Seeding Lead to Efficient Localized Weed Control Using Plant Cover Detection? M. Simard*1, B. Panneton2, G. D. Leroux3, A. Vanasse4, R. E. Nurse5; 1Agriculture and Agri-Food Canada, Quebec, QC, 2Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, 3Université Laval, Quebec, QC, 4Université Laval, Québec, QC, 5Agriculture and Agri-Food Canada, Harrow, ON (33)

 

Effect of Herbicide Rate and Rotation on the Weed Seed Bank After Three Years of Transgenic Corn/soybean Cropping. M. Simard*1, S. Rouane2, G. D. Leroux2; 1Agriculture and Agri-Food Canada, Quebec, QC, 2Université Laval, Quebec, QC (34)

 

Weed Control with Pindar GT in California Tree Nuts. R. K. Mann*1, M. Sorribas1, J. P. Mueller2, B. Bisabri3, M. L. Fisher4, D. G. Shatley5, J. Richardson6; 1Dow AgroSciences, Indianapolis, IN, 2Dow AgroSciences, Brentwood, CA, 3Dow AgroSciences, Orinda, CA, 4Dow AgroSciences, Fresno, CA, 5Dow AgroSciences, Lincoln, CA, 6Dow AgroSciences, Hesperia, CA (35)

 

LibertyLink Soybean: Is this the Answer? D. Lingenfelter*, W. Curran; The Pennsylvania State University, University Park, PA (36)

 

Progress in Canadian Minor Use Weed Science Program. K. Subedi*; Agriculture and Agri-Food Canada, Ottawa, ON (37)




MONDAY  AFTERNOON    FEBRUARY 7

Section 2. Horticultural Crops

 

*PRESENTER

 

Efficacy of Post-directed Herbicide Applications for Weed Control in Pepper. L. Brandenberger*, L. Carrier; Oklahoma State University, Stillwater, OK (38)

 

The Effect of Vine Kill Herbicides on Potato Storage and Chip Quality. W. J. Everman*, C. M. Long, A. J. Chomas; Michigan State University, East Lansing, MI (39)

 

Post-directed Application of Pelargonic Acid for Squash. C. L. Webber*1, J. W. Shrefler2, L. Brandenberger3; 1USDA-ARS, Lane, OK, 2Oklahoma State University, Lane, OK, 3Oklahoma State University, Stillwater, OK (40)

 

Quantifying the Costs and Benefits of Cover Crop Use for Weed Management. A. H. Cho, A. W. Hodges, C. A. Chase*; University of Florida, Gainesville, FL (41)

 

Effect of Controlled Release Nitrogen Fertilizer on Vine Desiccation and Potato Tuber Yield. L. E. Bast*, W. J. Everman, A. J. Chomas, D. D. Warncke; Michigan State University, East Lansing, MI (42)

 

Indaziflam for Control of Key Weeds in Tree, Nut, and Vine Crops. D. Unland*1, H. Mager2, M. Edenfield3; 1Bayer CropScience, Research Triangle Park, NC, 2Bayer CropScience, Fountain Hills, AZ, 3Bayer CropScience, Lake Wales, FL (43)

 

Indaziflam: A New Pre-emergence Herbicide for Citrus. M. -. Singh*1, A. M. Ramirez1, M. Edenfield2; 1University of Florida, Lake Alfred, FL, 2Bayer CropScience, Lake Wales, FL (44)

 

Summer Weed Control with Glyphosate Tank Mixed with Indazaflam or Penoxsulam in California Orchards and Vineyards. B. D. Hanson, A. J. Jhala*; University of California, Davis, Davis, CA (45)

 

New Herbicides for Weed Control in Potato. C. J. Swanton, K. Chandler*; University of Guelph, Guelph, ON (46)

 

Natural Product Herbicides for Fruit and Vegetable Crops. R. Van Acker, J. O'Sullivan*, R. Grohs, R. Riddle; University of Guelph, Simcoe, ON (47)

 

Tolerance of Seed Radish to Clopyralid: Effect of Variety, Timing and Rate. E. Peachey*, A. Greco; Oregon State University, Corvallis, OR (48)

 

Weed Suppression Utilizing Mulch and Organic Herbicide Combinations. M. A. Rowley*1, C. V. Ransom2, J. Reeve2, B. L. Black2; 1Utah State University, Eureka, UT, 2Utah State University, Logan, UT (49)

 

Determine the Benefits of Cane Burning to Red Raspberry in the Pacific Northwest. Y. Duan*1, T. W. Miller2; 1Washington State University, Pullman, WA, 2Washington State University, Mount Vernon, WA (50)

 

Weed Management Options for Organic Cantaloupe Production. J. W. Shrefler1, C. L. Webber*2, M. J. Taylor1, B. Roberts1; 1Oklahoma State University, Lane, OK, 2USDA-ARS, Lane, OK (51)




MONDAY  AFTERNOON    FEBRUARY 7

Section 3. Turf and Ornamental Crops

 

*PRESENTER

 

Turf, Weed or Weedy Turf ? -- My View on the Weed Transformed from Unwanted Turf Growing in Cultivated Golf's Turf. X. Guang*; East China Weed Technology Institute, Nanjing, Peoples Republic (52)

 

Corn Gluten Meal Rate Affects Brown Patch Severity in Tall Fescue. A. Smith*, D. S. McCall, S. Askew; Virginia Tech, Blacksburg, VA (53)




MONDAY  AFTERNOON    FEBRUARY 7

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

 

*PRESENTER

 

Fire and Grazing Increase Invasive Opportunities for Salt Cedar in the Prairie Pothole Region. S. A. Clay*, M. Ohrtman, A. Smart; South Dakota State University, Brookings, SD (54)

 

Economic Assessment of Integrated Weed Management Practices Used to Improve Forage Productivity in Pastures. J. Tolson, J. Green*, K. Burdine, W. Witt, G. Schwab; University of Kentucky, Lexington, KY (55)

 

Ecology of Cutleaf Teasel Seeds. S. D. Eschenbach*, G. O. Kegode, D. B. Vlieger; Northwest Missouri State University, Maryville, MO (56)

 

Increasing Native Warm Season Grasses with Fire, Herbicide, and Nitrogen. S. M. Waughtel*; South Dakota State University, Brookings, SD (57)

 

Russian Knapweed Management in Southwestern Abandoned Pastures. W. B. McCloskey*1, K. McReynolds2, E. Foster3, D. Arthun4; 1University of Arizona, Tucson, AZ, 2University of Arizona, Willcox, AZ, 3NRCS USDA, Safford, AZ, 4BLM, Safford, AZ (58)

 

Influence of Spring Applications of Aminopyralid plus Metsulfuron on Forage Characteristics and Beef Steer Performance in Missouri Pastures. T. R. Legleiter*, J. Sexten, C. Roberts, K. W. Bradley; University of Missouri, Columbia, MO (59)

 

The Safety and Efficacy of Mesotrione in Longleaf Pine Seedlings. M. A. Czarnota*; University of Georgia, Griffin, GA (60)




MONDAY  AFTERNOON    FEBRUARY 7

Section 5. Wildland and Aquatic Invasive Plants

 

*PRESENTER

 

Using a Plant Dispersal Model for Yellow Starthistle for Landscape Level Weed Management Planning. L. W. Lass*1, T. Prather1, B. Shafii1, S. Cook1, T. Venn2, W. Chung2, S. R. Radosevich3, P. Aracena2, W. J. Price1, C. Crabtree4, P. Green5, S. Kesoju1; 1University of Idaho, Moscow, ID, 2University of Montana, Missoula, MT, 3Oregon State University, Corvallis, OR, 4Idaho County Weed Superintendent, Grangeville, ID, 5USFS, Grangeville, ID (61)

 

Use of Endothall for Control of Eurasian Watermilfoil in Irrigation Canals. J. D. Vassios*1, S. J. Nissen1, C. J. Gray2; 1Colorado State University, Fort Collins, CO, 2United Phosphorous, Inc., Peyton, CO (62)

 

Water Lettuce and Water Hyacinth Control Using Saflufenacil. J. D. Vassios*, S. J. Nissen; Colorado State University, Fort Collins, CO (63)

 

The Effect of Selected Herbicides on Growth and Hydrocarbon Content of Botryocuccus braunii K¨¹tzing Berkeley Strain (vat. showa). L. Deng*, S. A. Senseman, T. Gentry, D. Zuberer, T. Weiss, T. Devarenne, E. R. Camargo; Texas A&M University, College Station, TX (64)

 

Monoecious Hydrilla Control With Endothall Over Two Years. S. L. True*, J. J. Nawrocki, R. J. Richardson; North Carolina State University, Raleigh, NC (65)

 

Multi-year Survival, Growth and Maturation of Invasive Swallow-wort Juveniles (Vincetoxicum spp.) across a Habitat Gradient. L. R. Milbrath1, A. DiTommaso*2, J. Biazzo1, S. H. Morris2; 1USDA-ARS, Ithaca, NY, 2Cornell University, Ithaca, NY (66)

 

Small Mammal Response to Chinese Privet Removal from Riparian Forests in Northeast Georgia. M. S. Murphy*; University of Georgia, Athens, GA (67)

 

Native and Invasive Rubus Hybridize to Produce Apomictic Offspring. L. V. Clark, M. Jasieniuk*; University of California, Davis, Davis, CA (68)

 

Hybridization and Invasion: Using Molecular Phylogenetic Methods to Reveal the Origins of North American French Broom Invasions. A. C. Kleist*, M. Jasieniuk; University of California, Davis, Davis, CA (69)

 

Management Options for Japanese Stiltgrass (Microstegium vimineum) in Natural Areas. T. L. Mervosh*1, J. S. Ward2, J. P. Barsky2; 1Connecticut Agricultural Experiment Station, Windsor, CT, 2Connecticut Agricultural Experiment Station, New Haven, CT (70)




MONDAY  AFTERNOON    FEBRUARY 7

Section 6. Regulatory Aspects

 

*PRESENTER



MONDAY  AFTERNOON    FEBRUARY 7

Section 7. Education and Extension

 

*PRESENTER

 

Changes in the Weed Species Composition of the Southern US: 1995 to 2010. T. M. Webster*1, R. L. Nichols2; 1USDA-ARS, Tifton, GA, 2Cotton Incorporated, Cary, NC (71)

 

Creating a Photographic Guide to Identify Herbicide Drift in Rice. J. B. Hensley*1, E. P. Webster1, B. Schultz2; 1LSU AgCenter, Baton Rouge, LA, 2LSU AgCenter, Crowley, LA (72)

 

Invasive Plant Ecology and Management. S. L. Young*; University of Nebraska-Lincoln, North Platte, NE (73)




MONDAY  AFTERNOON    FEBRUARY 7

Section 8. Formulation, Adjuvant and Application Technology

 

*PRESENTER

 

Efficacy of A Low Volume, Low Pressure Glyphosate Application Compared to a Traditional Application. G. R. Kruger*1, R. N. Klein1, J. A. Golus1, T. J. Dorr1, J. A. Eastin2; 1University of Nebraska-Lincoln, North Platte, NE, 2Kamterter Products, LLC., Lincoln, NE (74)

 

Adjuvant Certification through the Chemical Producers and Distributors Association. M. L. Bernards1, G. K. Dahl*2; 1University of Nebraska-Lincoln, Lincoln, NE, 2Winfield Solutions, LLC, Minneapolis, MN (75)




MONDAY  AFTERNOON    FEBRUARY 7

Section 9. Weed Biology and Ecology

 

*PRESENTER

 

Alternating Temperature Alters the Transcriptome of Leafy Spurge Seeds after Pretreatment at Constant Temperature. M. E. Foley*, W. S. Chao; USDA-ARS, Fargo, ND (76)

 

Response of Nebraska Kochia (Kochia scoparia) Populations to Dicamba. R. J. Crespo*1, M. L. Bernards1, G. R. Kruger2, R. G. Wilson3, D. J. Lee1; 1University of Nebraska-Lincoln, Lincoln, NE, 2University of Nebraska-Lincoln, North Platte, NE, 3University of Nebraska, Scottsbluff, NE (77)

 

Does the Dormancy of Weed Seeds Break by the Passage Through Digestive Tract in Holstein Cattle? S. Rahimi1, H. Rahimian Mashhadi*2, M. D. Banadaki1; 1University of Tehran, Karaj, Iran, 2University of Tehran, Tehran, Iran (78)

 

Preferential Predation of Cool-season Grass Seed by the Common Cricket (Acheta domesticus). R. D. Williams*1, P. W. Bartholomew2; 1USDA-ARS, Oklahoma City, OK, 2USDA-ARS, Langston, OK (79)

 

Microscopic Characterization of Rubber Particles in Prickly Lettuce (Lactuca serriola). J. L. Bell*, I. C. Burke, M. M. Neff; Washington State University, Pullman, WA (80)

 

Analyzing Crop, Soil, and Terrain Impacts on Weed Seed Banks Using Random Forests Regression. R. Unger*1, D. R. Huggins1, I. C. Burke1, E. Gallandt2, S. Higgins1; 1Washington State University, Pullman, WA, 2University of Maine, Orono, ME (81)

 

Seed Development on Weeds Controlled Prior to Maturity. E. C. Taylor*, C. L. Sprague, K. A. Renner; Michigan State University, East Lansing, MI (82)

 

Endophyte Status of Tall Fescue (Lolium arundinaceum) Affects Seed Predation. P. W. Bartholomew1, R. D. Williams*2; 1USDA-ARS, Langston, OK, 2USDA-ARS, Oklahoma City, OK (83)

 

Effects of Vegetative Cover and Food Load on Weed Seed Predation in the Upper Midwest. G. G. Gramig*; North Dakota State University, Fargo, ND (84)

 

Inheritance of EPSPS Gene Amplification in Palmer Amaranth. D. A. Giacomini*1, S. Ward1, T. A. Gaines2, P. Westra1; 1Colorado State University, Fort Collins, CO, 2University of Western Australia, Crawley, WA, Australia (85)

 

Persistence and Survival of Hoary Alyssum (Berteroa incana (L.) DC). G. J. Stopps, M. K. Upadhyaya*; University of British Columbia, Vancouver, BC (86)

 

Weed Seedbank Dynamics in Four Contrasting Organic Feed and Forage Production Systems. R. G. Smith*1, D. A. Mortensen2, M. E. Barbercheck2, D. J. Sandy2; 1University of New Hampshire, Durham, NH, 2The Pennsylvania State University, University Park, PA (87)

 

Weed Emergence and Growth in Strip-Tilled Systems: Separating the Effects of Tillage, Cover Crops, and Crop Competition. E. Haramoto*, D. C. Brainard; Michigan State University, East Lansing, MI (88)

 

Developing a Hydrothermal Model to Predict Emergence of Annual Weed Species in Iowa. R. Werle*1, L. D. Sandell1, M. L. Bernards1, J. L. Lindquist1, D. D. Buhler2, R. G. Hartzler3; 1University of Nebraska-Lincoln, Lincoln, NE, 2U.S. Department of Agriculture / Agricultural Research Service, Ames, IA, 3Iowa State University, Ames, IA (89)

 

Growth and Development of Artemesia annua in Eastern Washington. H. C. Malone*, I. C. Burke, B. Pan; Washington State University, Pullman, WA (90)

 

The Significance of Sorghum Exudates on the Germination of the Parasitic Weed, Striga hermonthica. L. C. Andresen*1, J. C. Streibig1, B. W. Strobel2, A. M. Rimando3, T. H. Nielsen1, V. Leth1; 1University of Copenhagen, Taastrup, Denmark, 2Univesity of Copenhagen, Frederiksberg, Denmark, 3USDA-ARS, Oxford, MS (91)

 

Effect of Storage Conditions and Corn Competition on Seed Germination of Jimsonweed and Cocklebur. F. Kordbacheh*1, H. Rahimian Mashhadi2, H. Alizadeh1, R. Tavakol Afshari1; 1Tehran University, Karaj, Iran, 2University of Tehran, Tehran, Iran (92)

 

Effects of Soil Water Level on Dormancy, Germination and Mortality of Weed Seed. T. Imaizumi*, M. Asai, H. Watanabe, A. Uchino; National Agricultural Research Center, Tsukuba, Japan (93)

 

Distribution of Glyphosate-resistant and -susceptible Hairy Fleabane (Conyza bonariensis) and their Phenology in Central California. A. Shrestha*1, B. D. Hanson2, M. L. Moretti1; 1California State University, Fresno, CA, 2University of California, Davis, Davis, CA (94)

 

Elucidating the Inheritance of Evolved Resistance to Glyphosate in Populations of Palmer Amaranth (Amaranthus palmeri) from North Carolina. A. Chandi*1, S. Mila-Lewis1, D. L. Jordan1, J. D. Burton1, A. York1, J. Whitaker2, A. S. Culpepper3; 1North Carolina State University, Raleigh, NC, 2University of Georgia, Statesboro, GA, 3University of Georgia, Tifton, GA (95)

 

Parameterization of the Barnyardgrass Resistance Simulation Model for Rice. M. V. Bagavathiannan*1, J. K. Norsworthy1, K. L. Smith2, P. Neve3; 1University of Arkansas, Fayetteville, AR, 2University of Arkansas, Monticello, Monticello, AR, 3University of Warwick, Wellesbourne, England (96)

 

Is the Biofuel Switchgrass an Invasion Risk in California? J. N. Barney*1, J. M. DiTomaso2; 1Virginia Tech, Blacksburg, VA, 2University of California, Davis, Davis, CA (97)

 

Intra- and Inter-specific Interference between Rice and Herbicide-resistant and -susceptible Echinochloa phyllopogon. L. G. Boddy*1, M. S. Bhullar2, J. C. Streibig3, A. J. Fischer1; 1University of California, Davis, Davis, CA, 2Punjab Agricultural University, Ludhiana, India, 3Royal Veterinary and Agricultural University, Thovarldsenvej, Denmark (98)

 

Applying the Concept of Hydrothermal Time to Model Dormancy and Germination in Echinochloa phyllopogon. L. G. Boddy*, K. J. Bradford, A. J. Fischer; University of California, Davis, Davis, CA (99)

 

Growth and Development Among Prickly Nightshades from Southeastern United States. C. T. Bryson*1, K. N. Reddy1, J. D. Byrd2; 1USDA-ARS, Stoneville, MS, 2Mississippi State University, Mississippi State, MS (100)

 

Kochia with ALS (AHAS) Mutations: More on the Manitoba Conundrum. A. Legere*1, H. G. Beckie1, B. Hrynewich1, C. Lozinski1, E. N. Johnson2, S. Warwick3, C. Stevenson4; 1Agriculture and Agri-Food Canada, Saskatoon, SK, 2Agriculture and Agri-Food Canada, Scott, SK, 3Agriculture and Agri-Food Canada, Ottawa, ON, 4Private Consultant, Saskatoon, SK (101)

 

Spurred Anoda, Tall Morningglory, and Wright’s Groundcherry are not Affected by Meloidogyne incognita and Verticillium dahlia Co-infection. J. Schroeder*1, C. Fiore1, S. Thomas1, J. Trojan1, S. Sanogo1, L. Liess1, N. Schmidt1, L. Murray2; 1New Mexico State University, Las Cruces, NM, 2Kansas State University, Manhattan, KS (102)

 

The Effect of Limited Irrigation on Weed Emergence and Seed Production in Corn and Sunflower. L. Wiles*1, D. Remucal2, W. Bausch3, T. Trout3, D. L. Shaner2; 1USDA-ARS, Fort Collins, CO, 2USDA, Fort Collins, CO, 3USDA-ARS, Water Management Research Unit, Fort Collins, CO (103)

 

Effect of Saflufenacil on Glyphosate-resistant and -susceptible Horseweed (Conyza canadensis) Biotypes. A. Shrestha*, M. L. Moretti; California State University, Fresno, CA (104)

 

Factors Affecting Germination of Spanishneedles (Bidens bipinnata L.). A. M. Ramirez*, M. -. Singh; University of Florida, Lake Alfred, FL (105)

 

Novel use of Trinexapac-ethyl to Study Requirement of Gibberellins for Seed Dormancy Breakage. H. R. Huarte*, M. L. Zapiola; Universidad Católica Argentina, Buenos Aires, Argentina (106)

 

Breaking Seed Dormancy in Common Teasel. H. R. Huarte, M. L. Zapiola*; Universidad Católica Argentina, Buenos Aires, Argentina (107)

 

A Genomic Approach to Investigate the Weediness of Jointed Goatgrass (Aegilps cylindrica). E. Sanchez Olguin*, A. Liston, C. Mallory-Smith; Oregon State University, Corvallis, OR (108)

 

Potential Allelopathic Effects of Ruzi Grass (Brachiaria ruziziensis) Leaf and Stem Tissues on Weed Species. E. L. Ishii-Iwamoto*1, R. S. Oliveira Jr.1, J. Constantin1, A. A. Silva2, K. A. Kern Cardoso2, F. A. Rios2, M. S. Mito2, M. Foletto2; 1Universidade Estadual de Maringá, Maringá, Brazil, 2University of Maringá, Maringá, Brazil (109)

 

Recruitment Biology and Ecology of Large [Digitaria sanguinalis L. (Scop.)] and Small [Digitaria ischaemum (Schreb.) ex Muhl.] Crabgrass in Turf. F. A. Turner*1, R. Van Acker2; 1University of Guelph, Guelph, ON, 2University of Guelph, Simcoe, ON (110)




MONDAY  AFTERNOON    FEBRUARY 7

Section 10. Biocontrol of Weeds

 

*PRESENTER

 

Biological control of Johnsongrass by means of Bipolaris sorghicola. H. A. Acciaresi*, G. A. Lampugnani, C. Abramoff, M. C. Stocco, M. S. Zuluaga, C. I. Monaco, N. Mercerat; Fac. Cs. Agrarias y Ftales (UNLP), La Plata, Argentina (111)

 

Biocontrol of Hemp Sesbania in Rice with the Fungus Colletotrichum gloeosporioides f. sp. aeschynomene Formulated in an Invert Emulsion. C. D. Boyette*1, D. R. Gealy2, R. E. Hoagland3, K. C. Vaughn1; 1USDA-ARS, Stoneville, MS, 2USDA-ARS, Stuttgart, AR, 3USDA-ARS, CPSRU, Stoneville, MS (112)

 

Weed Suppression from Fall Seeded Brassica Cover Crops. D. Anderson, J. B. Masiunas*, J. DeDecker, M. Kushad; University of Illinois, Urbana, IL (113)




MONDAY  AFTERNOON    FEBRUARY 7

Section 11. Physiology

 

*PRESENTER

 

Glyphosate Driven Selection Strikes Again: Investigating the Mechanism of Resistance in Echinochloa colona from California. R. Alarcón-Reverte*, A. García, M. Jasieniuk, T. Lanini, B. D. Hanson, A. J. Fischer; University of California, Davis, Davis, CA (114)

 

Characterization of Glyphosate Resistant Sourgrass in Brazil. M. S. Melo*1, J. D. Vassios2, M. Nicolai3, S. J. Nissen2, P. J. Christoffoleti3, T. C. Banzato3; 1University of Sao Paulo, Piracicaba, Brazil, 2Colorado State University, Fort Collins, CO, 3Univeristy of Sao Paulo - ESALQ - Brazil, Piracicaba, Brazil (115)

 

Glyphosate Resistance in Sorghum halepense. L. Lorentz*1, R. Beffa2, H. J. Strek3; 1Universität Bonn, Frankfurt, Germany, 2Bayer CropScience, Frankfurt am Main, Germany, 3Bayer CropScience, Frankfurt, Germany (116)

 

Assimilate Translocation Changes Caused by Glyphosate in Lolium perenne Biotypes of Diferencial Herbicide Sensitivity. M. E. Yanniccari*1, D. Gimenez2, H. A. Acciaresi2, A. M. Castro2; 1Instituto de Fisiología Vegetal (UNLP-CONICET), La Plata, Argentina, 2Fac. Cs. Agrarias y Ftales (UNLP), La Plata, Argentina (117)

 

Absorption and Translocation of Aminocyclopyrachlor in Foliar and Basal Applications. I. C. Burke*, J. L. Bell, H. C. Malone; Washington State University, Pullman, WA (118)

 

Resistance of Conyza spp Brazilian Biotypes to Glyphosate. M. Nicolai*1, P. J. Christoffoleti1, J. D. Vassios2, M. S. Melo3, S. J. Nissen2, P. Westra2; 1Univeristy of Sao Paulo - ESALQ - Brazil, Piracicaba, Brazil, 2Colorado State University, Fort Collins, CO, 3University of Sao Paulo, Piracicaba, Brazil (119)

 

Transpiration-use Efficiency Coefficient of Eight Weed Species as Affected by Fraction of Transpirable Soil Water and Growth Stage. V. Mannam*, M. L. Bernards, J. L. Lindquist, T. J. Arkebauer, S. Z. Knezevic, S. Irmak; University of Nebraska-Lincoln, Lincoln, NE (120)

 

Resistance of Digitaria insularis Brazilian Biotypes to Glyphosate. P. J. Christoffoleti*1, M. Nicolai1, M. S. Melo2, J. D. Vassios3, S. J. Nissen3, P. Westra3; 1Univeristy of Sao Paulo - ESALQ - Brazil, Piracicaba, Brazil, 2University of Sao Paulo, Piracicaba, Brazil, 3Colorado State University, Fort Collins, CO (121)

 

Glyphosate Resistance in Italian Ryegrass (Lolium multiflorum) Biotypes from Brazil. F. P. Lamego*, M. Gallon, Q. Ruchel, T. E. Kaspary, S. T. Peruzzo, I. B. Pagliarini; Federal University of Santa Maria/CESNORS, Frederico Westphalen, Brazil (122)

 

Involvement of Cytochrome P450 in Bensulfronmethyl Responsive Photon Emission from Rice Cells. H. Nukui*, H. Iyozumi, K. Kato, C. Kageyama; Shizuoka Research Institute of Agriculture and Forestry, Iwata, Japan (123)

 

Investigations into Suspected Goosegrass Resistance to Glyphosate in Mississippi. V. K. Nandula*1, W. Molin2; 1Mississippi State University, Stoneville, MS, 2USDA-ARS, Stoneville, MS (124)

 

Localization of an ABC Transporter in a Glyphosate Resistant Mutant of Conyza. R. E. Hoagland*1, W. Molin2, K. C. Vaughn2; 1USDA-ARS, CPSRU, Stoneville, MS, 2USDA-ARS, Stoneville, MS (125)

 

Panicle Changes in Rice Resulting from MSMA Application. H. Belefant-Miller*; USDA, Stuttgart, AR (126)

 

Glyphosate Resistance Confirmed in Waterhemp from Mississippi. V. K. Nandula*1, C. H. Koger1, J. A. Bond1, R. C. Bond1, T. W. Eubank1, K. N. Reddy2, J. D. Ray2; 1Mississippi State University, Stoneville, MS, 2USDA-ARS, Stoneville, MS (127)




MONDAY  AFTERNOON    FEBRUARY 7

Section 12. Soil and Environmental Aspects

 

*PRESENTER

 

Comparison of Biochar with Activated Charcoal on Soil Activity of Atrazine and Metribuzin. D. L. Shaner*1, R. A. Boydston2, L. Krutz3, H. Collins4; 1USDA, Fort Collins, CO, 2USDA-ARS, Prosser, WA, 3USDA-ARS, Stoneville, MS, 4USDA, Prosser, WA (128)

 

Response of Pennsylvania Native Plant Species, Corn and Soybean to Tank Mixes of Dicamba and Glyphosate. D. Olszyk*1, T. Griffin2, A. Ramsower3, T. Pfleeger2, E. Lee2, M. Plocher4; 1US EPA, 97404, OR, 2US EPA, Corvallis, OR, 3EPA GRO Fellow, Yuma, AZ, 4Dynamac Corp., Corvallis, OR (129)

 

Degradation of Saflufenacil as Affected by Moisture Content and Soil Characteristics. E. R. Camargo*1, S. A. Senseman1, R. Haney2, J. B. Guice3, G. McCauley4; 1Texas A&M University, College Station, TX, 2United States Department of Agriculture, Temple, TX, 3BASF Corporation, Winnsboro, LA, 4Texas AgriLife Research, Eagle Lake, TX (130)

 

Sorption-desorption of Aminocyclopyrachlor in Selected Brazilian Soils. R. S. Oliveira Jr.*1, W. C. Koskinen2, D. G. Alonso1; 1Universidade Estadual de Maringá, Maringá, Brazil, 2USDA-ARS/University of Minnesota, St. Paul, MN (131)

 

Herbicide Imazethapyr + Imazapic Carryover to Non-tolerant Rice as Affected by the Thickness of the Soil Profile. A. Bundt*, L. de Avila, D. Agostinetto, M. Nohatto, M. Ramos, T. Vieira Duarte, A. Langaro; Universidade Federal de Pelotas, Pelotas, Brazil (132)

 

Dissipation of Pyroxasulfone and S-metolachlor Over Two Years in Two Fields. E. P. Westra*1, D. L. Shaner2, P. Westra1; 1Colorado State University, Fort Collins, CO, 2USDA, Fort Collins, CO (133)




MONDAY  AFTERNOON    FEBRUARY 7

Section 13. Integrated Weed Management

 

*PRESENTER

 

Impact of the Quality of Organic Amendments on Size and Composition of the Weed Seedbank. B. De Cauwer, R. Bulcke*, D. Reheul; Ghent University, Ghent, Belgium (134)

 

Weed Suppression and Soil Nitrogen Benefits Associated with Legume Cover Crop-Winter Wheat Intercrops. R. E. Blackshaw*, L. Molnar, J. Moyer; Agriculture and Agri-Food Canada, Lethbridge, AB (135)

 

Weed Remote Sensing using LEDs as Spectral Selective Light Detectors. C. Weber, H. A. Acciaresi*; Fac. Cs. Agrarias y Ftales (UNLP), La Plata, Argentina (136)

 

New Target Site Mutation in a Glyphosate Resistant Sumatran Fleabane (Conyza sumatrensis). F. González-Torralva1, J. Gil-Humanes2, F. Barro2, R. De Prado*1; 1University of Córdoba, Córdoba, Spain, 2Instituto de Agricultura Sostenible CSIC, Córdoba, Spain (137)

 

Glyphosate Resistance Biomarker: Digitaria insularis as a Case of Study. A. M. Rojano1, L. Bianco de Carvalho2, F. Priego-Capote1, M. Luque de Castro1, R. De Prado*1; 1University of Córdoba, Córdoba, Spain, 2University of Sao Paulo, Sao Paulo, Brazil (138)

 

Respect the Rotation: A Comprehensive Partnership to Preserve Herbicide and Trait Technology. J. Rutledge*; Bayer CropScience, Research Triangle Park, NC (139)

 

Weed Population Dynamics and Economics: Optimizing Weed Management in Organic Small Grains. L. N. Kolb*; University of Maine, Orono, ME (140)

 

Winter Cover Crop Effects on Weed Communities in Strip-tilled Sweet Corn. B. E. Henshaw*, D. C. Brainard; Michigan State University, East Lansing, MI (141)

 

Economics of Using Hand-held Flame Cultivators for Weed Management in Cranberry. H. A. Sandler*, K. M. Ghantous; UMass Cranberry Station, East Wareham, MA (142)




TUESDAY  MORNING    FEBRUARY 8

Section 2. Horticultural Crops

LOCATION:   Galleria North
TIME:   10:30 AM - 12:00 PM
CHAIR:   Rick Boydston
    USDA-ARS
    Prosser, WA

 

*SPEAKER

 

10:30   Replacing Methyl Bromide on Georgia Farms. L. M. Sosnoskie*1, T. M. Webster2, A. S. Culpepper1; 1University of Georgia, Tifton, GA, 2USDA-ARS, Tifton, GA (143)

 

10:50   Brassica Genotype and Planting Time Influence Weed Control and Pumpkin Yield. J. B. Masiunas*, D. Anderson, J. DeDecker; University of Illinois, Urbana, IL (144)

 

11:10   Rye and Vetch Management for No-till Snap Bean Production. R. A. Boydston*1, M. M. Williams2; 1USDA-ARS, Prosser, WA, 2USDA-ARS, Urbana, IL (145)

 

11:30   Control of Perennial and Persistent Weeds in Old Blueberry Plantings. R. V. Tocco Jr.*, B. H. Zandstra, C. M. Herrmann; Michigan State University, East Lansing, MI (146)




TUESDAY  MORNING    FEBRUARY 8

Section 5. Wildland and Aquatic Invasive Plants

LOCATION:   Broadway
TIME:   10:30 AM - 12:00 PM
CHAIR:   Christopher Mudge
    US Army Engineer Research and Development Center
    Vicksburg, MS

 

*SPEAKER

 

10:30   Field Evaluations of Herbicides for Bohemian Knotweed (Polygonum X bohemicum) Control. K. Patten1, C. Metzger2, V. F. Peterson*3; 1WSU, Long Beach, WA, 2Washington State Univerisity, Long Beach, WA, 3Dow AgroSciences, Mulino, OR (147)

 

10:50   Examining the Unpredictable Nature of Yellow Toadflax in Colorado. N. J. Krick*; Colorado State University, Fort Collins, CO (148)

 

11:10   Absorption and Translocation of Fluridone, Penoxsulam, and Triclopyr by Eurasian Watermilfoil and Hydrilla. J. D. Vassios*1, S. J. Nissen1, T. J. Koschnick2; 1Colorado State University, Fort Collins, CO, 2SePRO Corporation, Carmel, IN (149)

 

11:30   Impact of Herbicide Combinations on Non-target and Invasive Submersed Aquatic Plants. C. R. Mudge*1, L. M. Glomski2; 1US Army Engineer Research and Development Center, Vicksburg, MS, 2US Army Engineer Research and Development Center, Lewisville, TX (150)




TUESDAY  MORNING    FEBRUARY 8

Section 6. Regulatory Aspects

LOCATION:   Parlor
TIME:   10:30 AM - 12:00 PM
CHAIR:   Margaret Smither-Kopperl
    USDA-NRCS
    Lockeford, CA

 

*SPEAKER

 

10:30   Rapid Response: Putting Early Detection & Rapid Response into Practice. A. V. Tasker*; USDA, APHIS, Plant Protection & Quarantine, Riverdale, MD (151)

 

10:50   New Federal Weed Risk Assessment Guidelines in Action: Examples for Three Species. B. P. Caton*1, A. Koop2, L. Fowler2, L. Newton2; 1USDA-APHIS-PPQ-CPHST, Raleigh, NC, 2USDA, Raleigh, NC (152)

 

11:10   Guidelines for the Molecular Identification of Invasive Plants. S. M. Talley*1, L. J. Cseke2; 1USDA, Fort Collins, CO, 2UAHuntsville, Huntsville, AL (153)

 

11:30   Detection of Significant Infestation of Goatsrue in McKean County Pennsylvania. M. Bravo*, J. Zoschg; Pennsylvania Department of Agriculture, Harrisburg, PA (154)

 

11:50   Business Meeting




TUESDAY  MORNING    FEBRUARY 8

Section 12. Soil and Environmental Aspects

LOCATION:   Galleria South
TIME:   10:30 AM - 12:00 PM
CHAIR:   Sharon Clay
    South Dakota State University
    Brookings, SD

 

*SPEAKER

 

10:30   Effects of Irrigation with Reclaimed Wastewater on the Efficacy and Fate of ALS Inhibitors in Soil. G. Dvorkin, B. Rubin*, B. Chefetz; Hebrew University of Jerusalem, Rehovot, Israel (155)

 

10:50   Enhanced Atrazine Degradation: Degraders Numbers and Activity Four Years after Last s-triazine Application. L. Krutz*, R. M. Zablotowicz, K. N. Reddy; USDA-ARS, Stoneville, MS (156)

 

11:10   Contributions of Agronomic Practices, Precipitation Patterns, and Landscape Vulnerability to Atrazine Load in the Big Blue River Basin. K. Dhakal*1, M. L. Bernards1, M. Milner1, P. L. Barnes2, P. J. Shea1; 1University of Nebraska-Lincoln, Lincoln, NE, 2Kansas State University, Manhattan, KS (157)

 

11:30   Reductions in Runoff of Chlorotriazine Herbicides to Surface Water due to Adoption of Best Management Practices. R. S. Fawcett*; Fawcett Consulting, Huxley, IA (158)

 

11:50   Business Meeting




TUESDAY  AFTERNOON    FEBRUARY 8

Graduate Student Luncheon

LOCATION:   Alexanders
TIME:   12:00 PM - 1:00 PM
CHAIR:   Sarah True
    North Carolina State University
    Raleigh, NC

 





TUESDAY  AFTERNOON    FEBRUARY 8

Navigating the Universe of Grants, Contracts, and Gifts in the 21st Century

LOCATION:   Grand Ballroom II
TIME:   1:00 PM - 5:00 PM
CHAIR:   Chad Brommer
    BASF
    Raleigh, NC

 

*SPEAKER

 

1:00   Musings of a Weed Science Grant Writer. C. L. Brommer*; BASF, Raleigh, NC (159)

 

1:30   The Industry Perspective on Grants and Aid. D. Refsell*; Valent, U.S.A. Co., Lathrop, MO (160)

 

2:00   Ethical Concerns When You Accept Funding. C. L. Brommer*; BASF, Raleigh, NC (161)

 

2:30   Web Gems. 21st Century Steps to Seek out Funding in Weed Science. C. L. Brommer*; BASF, Raleigh, NC (162)

 

3:00   Break

 

3:20   "Ask the elders" A Round Table of Weed Scientists on Both Sides of the Grant and Aid Process. C. L. Brommer*; BASF, Raleigh, NC (163)

 

3:50   Group Driven Grant and Aid Session. How to Leave WSSA 2011 Ready to Write or Acquire a Grant or Aid. C. L. Brommer*; BASF, Raleigh, NC (164)




TUESDAY  AFTERNOON    FEBRUARY 8

Significance and Use of Sulfonylurea Herbicides in Turfgrass

LOCATION:   Parlor
TIME:   1:00 PM - 5:00 PM
CHAIR:   Prasanta Bhowmik
    University of Massachusetts
    Amherst, MA

 

*SPEAKER

 

1:00   Introduction to the Symposium: History of Sulfonylurea Herbicides in Turfgrass Environments. P. C. Bhowmik*; University of Massachusetts, Amherst, MA (165)

 

1:20   Behavior of Sulfonylurea Herbicides in Plants: Mode-of-Action, Uptake, Translocation and Metabolism. J. S. Claus*, C. A. Silcox, H. M. Brown; DuPont Crop Protection, Wilmington, DE (166)

 

1:40   Sulfonylurea Herbicides Fate in Soil: Dissipation Mechanisms, Mobility, and Other Processes. T. L. Grey*1, P. E. McCullough2; 1University of Georgia, Tifton, GA, 2University of Georgia, Griffin, GA (167)

 

2:00   Movement of Sulfonylurea Herbicides to Nontarget Sites. S. Askew*; Virginia Tech, Blacksburg, VA (168)

 

2:20   Role of Adjuvants on Sulfonylurea Herbicide Efficacy. D. Sanyal*1, P. C. Bhowmik2; 1Monsanto Company, St. Louis, MO, 2University of Massachusetts, Amherst, MA (169)

 

2:40   Environmental and Seasonal Effects on Efficacy and Cool-Season Turfgrass Tolerance to ALS Inhibiting Herbicides. S. Hart*; Rutgers, The State University of New Jersey, New Brunswick, NJ (170)

 

3:00   Break

 

3:20   Use of Sulfonylurea Herbicides for Broadleaf Weed Control in Warm-Season Turfgrass. B. J. Brecke*; University of Florida, Jay, FL (171)

 

3:40   Broadleaf Weed Control with Sulfonylurea Herbicides in Cool-Season Turfgrass. J. Derr*; Virginia Tech, Virginia Beach, VA (172)

 

4:00   Cool-Season Grass Removal for Bermudagrass Spring Transition. K. Umeda*; University of Arizona, Phoenix, AZ (173)

 

4:20   Sulfonylurea Herbicides for Sedge & Kyllinga Control. F. H. Yelverton*1, P. C. Bhowmik2; 1North Carolina State University, Raleigh, NC, 2University of Massachusetts, Amherst, MA (174)

 

4:40   Sufonylurea Resistance in Weeds of Turf: Potential for Prevention. C. Mallory-Smith*, R. Golembiewski; Oregon State University, Corvallis, OR (175)




TUESDAY  AFTERNOON    FEBRUARY 8

Section 1. Agronomic Crops

LOCATION:   Grand Ballroom I
TIME:   1:00 PM - 5:00 PM
CHAIR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN

 

*SPEAKER

 

1:00   Benchmark Study: Economics of Glyphosate-Resistant Weed Management. D. R. Shaw*1, M. D. Owen2, S. C. Weller3, B. G. Young4, R. G. Wilson5, D. L. Jordan6; 1Mississippi State University, Mississippi State, MS, 2Iowa State University, Ames, IA, 3Purdue University, West Lafayette, IN, 4Southern Illinois University, Carbondale, IL, 5University of Nebraska, Scottsbluff, NE, 6North Carolina State University, Raleigh, NC (176)

 

1:20   Benchmark Study: Efficacy and Economics of Weed Management Tactics of Growers versus University Recommendations. B. G. Young*1, J. M. Matthews1, D. L. Jordan2, P. M. Dixon3, R. G. Wilson4, S. C. Weller5, M. D. Owen3, D. R. Shaw6; 1Southern Illinois University, Carbondale, IL, 2North Carolina State University, Raleigh, NC, 3Iowa State University, Ames, IA, 4University of Nebraska, Scottsbluff, NE, 5Purdue University, West Lafayette, IN, 6Mississippi State University, Mississippi State, MS (177)

 

1:40   Managing Glyphosate-resistant Italian ryegrass in the Mississippi Delta. J. A. Bond*, T. W. Eubank, R. C. Bond, V. K. Nandula; Mississippi State University, Stoneville, MS (178)

 

2:00   Potential Tank-mix Combinations to Control Glyphosate-Resistant Giant Ragweed in Cotton. K. A. Barnett*, L. E. Steckel; University of Tennessee, Jackson, TN (179)

 

2:20   Managment of Glyphosate-Resistant Palmer Amaranth in Roundup Ready Soybeans. L. E. Steckel*, K. A. Barnett; University of Tennessee, Jackson, TN (180)

 

2:40   Control of HPPD-Resistant Waterhemp in Corn and Soybeans. G. D. Vail*1, C. L. Foresman1, N. D. Polge2, V. K. Shivrain1, D. A. Thomas3; 1Syngenta, Greensboro, NC, 2Syngenta, Vero Beach, FL, 3Syngenta, Monticello, IL (181)

 

3:00   Break

 

3:20   Competition of Transgenic Volunteer Corn with Soybean and Implications for Weed and Insect Resistance Management. P. T. Marquardt*, C. H. Krupke, W. G. Johnson; Purdue University, West Lafayette, IN (182)

 

3:40   Grower Attitudes Regarding Glyphosate Resistance: A Five Year Follow-up to the Benchmark Study. J. M. Prince*1, D. R. Shaw1, W. A. Givens1, S. C. Weller2, B. G. Young3, R. G. Wilson4, M. D. Owen5, D. L. Jordan6; 1Mississippi State University, Mississippi State, MS, 2Purdue University, West Lafayette, IN, 3Southern Illinois University, Carbondale, IL, 4University of Nebraska, Scottsbluff, NE, 5Iowa State University, Ames, IA, 6North Carolina State University, Raleigh, NC (183)

 

4:00   Benchmark Study: Four Years Later - Trends in Weed Spectrum and Population Density. M. D. Owen1, S. C. Weller*2, D. R. Shaw3, B. G. Young4, D. L. Jordan5, R. G. Wilson6, P. M. Dixon1; 1Iowa State University, Ames, IA, 2Purdue University, West Lafayette, IN, 3Mississippi State University, Mississippi State, MS, 4Southern Illinois University, Carbondale, IL, 5North Carolina State University, Raleigh, NC, 6University of Nebraska, Scottsbluff, NE (184)

 

4:20   Postemergence Weed Control in Sorghum Containing the DuPont™ Inzen™ AII and Inzen™ Z Herbicide Tolerance Traits. R. N. Rupp*1, E. Castner2, R. Edmund2, M. Edwards2, J. Harbour2, C. Medlin2, D. W. Saunders3; 1DuPont Crop Protection, Edmond, OK, 2DuPont Crop Protection, Wilmington, DE, 3DuPont Crop Protection, Johnston, IA (185)

 

4:40   Stewardship of DuPont™ Inzen™ AII and Inzen™ Z Herbicide Tolerant Traits in Sorghum. D. R. Forney*1, D. W. Saunders2, C. B. Hazel3, R. N. Rupp4; 1DuPont Crop Protection, Newark, DE, 2DuPont Crop Protection, Johnston, IA, 3DuPont Crop Protection, Wilmington, DE, 4DuPont Crop Protection, Edmond, OK (186)




TUESDAY  AFTERNOON    FEBRUARY 8

Section 2. Horticultural Crops

LOCATION:   Galleria North
TIME:   1:00 PM - 5:00 PM
CHAIR:   Rick Boydston
    USDA-ARS
    Prosser, WA

 

*SPEAKER

 

1:00   Annual Strawberry Tolerance to Herbicides applied under Polyethylene Mulch. A. W. MacRae*, R. Kelly; University of Florida/IFAS, Wimauma, FL (187)

 

1:20   Weed Management in Green Onions with Oxyfluorfen. D. Doohan*, T. Koch; The Ohio State University, Wooster, OH (188)

 

1:40   Preemergence and Postemergence Herbicides for Maximum Weed Control in Dry Bulb Onion. B. H. Zandstra*, C. M. Herrmann, R. V. Tocco Jr.; Michigan State University, East Lansing, MI (189)

 

2:00   Evaluation of PRE Application of s-metolachlor and Dimethenamid-p on Direct Seeded Onions Using Activated Carbon. J. Felix*, K. Osborne, J. Ishida; Oregon State University, Ontario, OR (190)

 

2:20   Postemergence Weed Control in Snap Bean, Carrot, and Lettuce Using a Precision-Guided Flame Weeder. C. M. Herrmann*, R. V. Tocco Jr., B. H. Zandstra; Michigan State University, East Lansing, MI (191)

 

2:40   Evaluation of an In-Row Rotating Cultivator in Vegetable Crops. S. A. Fennimore*1, R. F. Smith2, J. Rachuy2; 1University of California, Davis, Salinas, CA, 2University of California, Salinas, CA (192)

 

3:00   Break

 

3:20   Using Less Atrazine in Sweet Corn: Challenges to Overcome. M. M. Williams II*1, R. A. Boydston2, E. Peachey3, D. E. Robinson4; 1USDA-ARS, Urbana, IL, 2USDA-ARS, Prosser, WA, 3Oregon State University, Corvallis, OR, 4University of Guelph, Ridgetown, ON (193)

 

3:40   Can Linuron Replace Atrazine in Sweet Corn? J. B. Masiunas*, D. Anderson, L. Sun, X. Zhu; University of Illinois, Urbana, IL (194)

 

4:00   Indaziflam Applied Alone and in Tankmixture With Other Herbicides for Weed Control in Perennial Crops. D. Unland*1, H. Mager2, M. Edenfield3; 1Bayer CropScience, Research Triangle Park, NC, 2Bayer CropScience, Fountain Hills, AZ, 3Bayer CropScience, Lake Wales, FL (195)

 

4:20   An Update on the Pending New Registrations of Flazasulfuron in the United States. M. D. Grove*; ISK Biosciences, Spring, TX (196)

 

4:40   The IR-4 Project: Update on Weed Control Projects. M. Arsenovic*1, D. L. Kunkel2, J. J. Baron2; 1IR-4 Project, Princeton, NJ, 2Rutgers University, Princeton, NJ (197)

 

5:00   Business Meeting




TUESDAY  AFTERNOON    FEBRUARY 8

Section 5. Wildland and Aquatic Invasive Plants

LOCATION:   Broadway
TIME:   1:00 PM - 5:00 PM
CHAIR:   Christopher Mudge
    US Army Engineer Research and Development Center
    Vicksburg, MS

 

*SPEAKER

 

1:00   Ecology and Management of Natalgrass (Melinis repens) in Florida. C. Stokes1, G. MacDonald*1, K. Langeland1, C. Reinhardt-Adams1, D. Miller2; 1University of Florida, Gainesville, FL, 2University of Florida, Milton, FL (198)

 

1:20   Potential for Spread and Control of Western milfoil (Mryiophyllum hippuroides) in western US canals. L. W. Anderson*; USDA-ARS, Davis, CA (199)

 

1:40   The Life History of Common Reed: Phragmites australis (Cav.) Trin. Ex Steud. J. C. Cheshier*, J. D. Madsen, R. M. Wersal; Mississippi State University, Starkville, MS (200)

 

2:00   Ecological Determinants of Invasion by Sahara Mustard in Southwest Deserts. J. S. Holt*; University of California, Riverside, CA (201)

 

2:20   Effects of Non-Native Earthworms on the Spread of Garlic Mustard (Alliaria petiolata) in Indiana Deciduous Forests. P. M. Quackenbush*, N. Emery, E. Kladivko, M. Jenkins, K. Gibson; Purdue University, West Lafayette, IN (202)

 

2:40   The Effect of Spotted Knapweed, Centaurea maculosa, on Germination and Survival of the Rare, Threatened Pitcher’s Thistle, Cirsium pitcheri. S. M. Louda1, T. Rand2, K. Bradley3, K. K. Crider*4; 1University of Nebraska, Lincoln, NE, 2USDA-ARS, Sidney, MT, 3University of Nevada, Reno, NV, 4USDA Forest Service, Athens, GA (203)

 

3:00   Break

 

3:20   Weed Contaminants in Seed as a Pathway for Movement of Invasive Plants. J. S. Conn*; USDA-ARS, Fairbanks, AK (204)

 

3:40   Integrating Systematics and Invasion Biology: A Case Study from Antigonon leptopus. J. M. Burke*, A. DiTommaso; Cornell University, Ithaca, NY (205)

 

4:00   Stem Propagule Escape Potential of the Bioenergy Crops Miscanthus x giganteus and Arundo donax. J. Mann*1, J. N. Barney2, J. M. DiTomaso1; 1University of California, Davis, Davis, CA, 2Virginia Tech, Blacksburg, VA (206)

 

4:20   Business Meeting




TUESDAY  AFTERNOON    FEBRUARY 8

Section 9. Weed Biology and Ecology

LOCATION:   Galleria South
TIME:   1:00 PM - 5:00 PM
CHAIR:   Richard Smith
    University of New Hampshire
    Durham, NH

 

*SPEAKER

 

1:00   Molecular Genotyping to Distinguish Subspecies of Oplismenus. L. J. Cseke*1, S. M. Talley2; 1UAHuntsville, Huntsville, AL, 2USDA, Fort Collins, CO (207)

 

1:20   A Study to Evaluate the Morphological and Seed Persistence Changes Associated with Domestication of Cow Cockle Genotypes (Saponaria vaccaria .L). H. S. Duddu*; University of Saskatchewan, Saskatoon, SK (208)

 

1:40   Endodormancy Release in Crown Buds of Leafy Spurge Involves Overlapping Molecular Networks Responsive to Abiotic Stress. M. Dogramaci*1, M. J. Christoffers1, D. P. Horvath2, J. V. Anderson2; 1North Dakota State University, Fargo, ND, 2USDA-ARS, Fargo, ND (209)

 

2:00   Intergeneric Transgenic Hybrid in the Bentgrass Complex Produced in situ. M. L. Zapiola*1, C. Mallory-Smith2; 1Universidad Católica Argentina, Buenos Aires, Argentina, 2Oregon State University, Corvallis, OR (210)

 

2:20   Use of AFLP Markers to Assess Genetic Diversity in Palmer Amaranth (Amaranthus palmeri) Populations from North Carolina and Georgia. A. Chandi*1, S. Mila-Lewis1, D. L. Jordan1, J. D. Burton1, A. York1, J. Whitaker2, A. S. Culpepper3; 1North Carolina State University, Raleigh, NC, 2University of Georgia, Statesboro, GA, 3University of Georgia, Tifton, GA (211)

 

2:40   Molecular Genotyping within the Mikania Species Complex. L. J. Cseke*1, S. M. Talley2; 1UAHuntsville, Huntsville, AL, 2USDA, Fort Collins, CO (212)

 

3:00   Break

 

3:20   Inferring the Origins and Spread of Agricultural Weeds and Invasive Plants Using Molecular Tools. M. Jasieniuk*; University of California, Davis, Davis, CA (213)

 

3:40   Do White-Tailed Deer Affect Plant Invasion?: Insights from a Meta-Analysis. K. M. Averill*, D. A. Mortensen; The Pennsylvania State University, University Park, PA (214)

 

4:00   Secondary Seed Dispersal by Vehicles: Simulating Colonization on a Heterogeneous Landscape. L. J. Rew*, A. Wing, K. Taylor, B. D. Maxwell; Montana State University, Bozeman, MT (215)

 

4:20   Intra- and Inter-Specific Competition among Invasive and Native Species during Early Stages of Plant Growth. S. Mangla*1, R. L. Sheley2, J. J. James2, S. R. Radosevich1; 1Oregon State University, Corvallis, OR, 2Oregon State University, Burns, OR (216)

 

4:40   Nontoxic Roles of Polyphenols in Facilitating Plant Invasions: Case Study with Japanese Knotweed (Polygonum cuspidatum). N. Tharayil*1, S. Nirmalkumar1, D. Triebwasser1, P. Alpert2, P. C. Bhowmik2; 1Clemson University, Clemson, SC, 2University of Massachusetts, Amherst, MA (217)




WEDNESDAY  MORNING    FEBRUARY 9

The US Witchweed Eradication Effort Turns 50

LOCATION:   Galleria North
TIME:   8:00 AM - 12:00 PM
CHAIR:   Alan Tasker
    USDA, APHIS, Plant Protection & Quarantine
    Riverdale, MD

 

*SPEAKER

 

8:00   Parasitic Weeds - a World Challenge. D. M. Joel*; Agricultural Research Organization (ARO), Ramat-Yishay, Israel (218)

 

8:30   Overview of Methods Development Support for the USDA-Carolinas Witchweed Eradication Program - 1959-1995. R. G. Westbrooks*1, R. Eplee2, M. Langston2; 1U.S. Geological Survey, Whiteville, NC, 2USDA APHIS, Retired, Whiteville, NC (219)

 

9:00   Current Eradication Program for the Witchweed Infestation in the US. R. Iverson*; NC Dept Ag & Consumer Serv., Raleigh, NC (220)

 

9:30   Current Parasitic Weed Control Methods Development Efforts in the US. C. L. Ramsey*; USDA-APHIS, Fort Collins, CO (221)

 

10:00   Break

 

10:20   Orobanche minor and the 3 R's: Regulation, Research, and Reality. C. Mallory-Smith*; Oregon State University, Corvallis, OR (222)

 

10:50   Technologies for Precision Control of Orobanche. H. Eizenberg*; Newe Ya’ar Research Center, Ramat Yishay, Israel (223)




WEDNESDAY  MORNING    FEBRUARY 9

Advances in Dose-Response Methodology Applied to the Science of Weed Control

LOCATION:   Grand Ballroom I
TIME:   8:00 AM - 12:00 PM
CHAIR:   Steven Seefeldt
    USDA-ARS
    Fairbanks, AK

 

*SPEAKER

 

8:00   Dose-Response: Background and Perspectives on the Development of Analysis Methodology. S. S. Seefeldt*1, W. J. Price2, B. Shafii2; 1USDA-ARS, Fairbanks, AK, 2University of Idaho, Moscow, ID (224)

 

8:20   Estimation Techniques for Dose-response Functions. B. Shafii*1, W. J. Price1, S. S. Seefeldt2; 1University of Idaho, Moscow, ID, 2USDA-ARS, Fairbanks, AK (225)

 

9:00   Applied Dose-Response Models in Weed Science. W. J. Price*1, B. Shafii1, S. S. Seefeldt2; 1University of Idaho, Moscow, ID, 2USDA-ARS, Fairbanks, AK (226)

 

10:00   Break

 

10:20   Discussion




WEDNESDAY  MORNING    FEBRUARY 9

Section 3. Turf and Ornamental Crops

LOCATION:   Parlor
TIME:   8:15 AM - 12:00 PM
CHAIR:   Dustin Lewis
    North Carolina State University
    Raleigh, NC

 

*SPEAKER

 

8:15   Efficacy of Liquid CO2 for Weed Control in Turfgrass Systems. D. F. Lewis*, T. W. Gannon, F. H. Yelverton; North Carolina State University, Raleigh, NC (227)

 

8:35   Growing Turfgrass Without Conventional Herbicides: Examining the Role of Alternative Strategies. C. Siva*, E. M. Lyons, F. J. Tardif, K. S. Jordan; University of Guelph, Guelph, ON (228)

 

8:55   Reduced Chemical Programs for Crabgrass Control in Cool Season Turf Using Corn Gluten Meal. A. Smith*, S. Askew; Virginia Tech, Blacksburg, VA (229)

 

9:15   Duration of Perennial Ryegrass Competition Affects Bermudagrass Quality. B. McNulty*, T. Middlesteadt, S. Askew; Virginia Tech, Blacksburg, VA (230)

 

9:35   Partial Control: A Novel Approach to Spring Transition of Overseeded Bermudagrass. B. McNulty*, T. Middlesteadt, S. Askew; Virginia Tech, Blacksburg, VA (231)

 

9:55   Break

 

10:20   Mesotrione Translocation in Kentucky Bluegrass and Annual Bluegrass. A. Post*1, M. Goddard2, S. Askew1; 1Virginia Tech, Blacksburg, VA, 2Monsanto, Scott, MS (232)

 

10:40   Preemergence Control of Parthenium hysterophorus and Commelina benghalensis. B. Stamps*; University of Florida/IFAS, Apopka, FL (233)

 

11:00   Business Meeting




WEDNESDAY  MORNING    FEBRUARY 9

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

LOCATION:   Galleria South
TIME:   8:00 AM - 12:00 PM
CHAIR:   Ronald Wright
    Mississippi State University
    Mississippi State, MS

 

*SPEAKER

 

8:00   Stewardship of Land Management Products and Solutions From DuPont Crop Protection. D. R. Forney*1, J. S. Claus2, R. R. Magee3, R. G. Turner4; 1DuPont Crop Protection, Newark, DE, 2DuPont Crop Protection, Wilmington, DE, 3DuPont Crop Protection, League City, TX, 4DuPont Crop Protection, Memphis, TN (234)

 

8:20   Chopper Gen2 Applied to Bareground for Pine Site Preparation. J. L. Yeiser*1, A. W. Ezell2; 1Stephen F Austin State University, Nacogdoches, TX, 2Mississippi State University, Starkville, MS (235)

 

8:40   Invasive Species Distribution Among Large Urban Park Forests in the Northeastern United States. R. E. Loeb*; The Pennsylvania State University, DuBois, PA (236)

 

9:00   New Developments in Woody Brush Control with aminopyralid Tank Mixes. V. F. Peterson*1, W. N. Kline2, P. L. Burch3; 1Dow AgroSciences, Mulino, OR, 2Dow AgroSciences, Duluth, GA, 3Dow AgroSciences, Christianburg, VA (237)

 

9:20   The Effect of Herbicides and Timing on Longleaf Seedling Survival and Height Growth on Old-Field Planted Sites in Georgia. E. D. Dickens*1, D. Moorhead2, B. McElvany3, R. Joyce4, W. Parker5; 1University of Georgia, Statesboro, GA, 2University of Georgia, Tifton, GA, 3University of Georgia, Soperton, GA, 4University of Georgia, Dublin, GA, 5University of Georgia, Millen, GA (238)

 

9:40   Control of Unwanted Hardwoods with Mixtures Containing aminocyclopyrachlor in Pine Site Preparation Areas. A. W. Ezell*1, J. L. Yeiser2; 1Mississippi State University, Starkville, MS, 2Stephen F Austin State University, Nacogdoches, TX (239)

 

10:00   Break

 

10:20   Use of indaziflam for Herbaceous Weed Control in First-Year Loblolly Pine Plantations. A. W. Ezell*1, J. L. Yeiser2; 1Mississippi State University, Starkville, MS, 2Stephen F Austin State University, Nacogdoches, TX (240)

 

10:40   Indaziflam for Railroad Weed Control. J. Ferrell*1, B. A. Sellers2, G. MacDonald1, J. Michel3, D. Spak4; 1University of Florida, Gainesville, FL, 2University of Florida, Ona, FL, 3Bayer CropScience PL, Orlando, FL, 4Bayer CropScience LP, Research Triangle Park, NC (241)

 

11:00   Aminocyclopyrachlor for Range and Pasture Weed Control. S. K. Rick*1, J. H. Meredith2, J. S. Claus3, C. Alford4; 1DuPont Crop Protection, Waterloo, IL, 2DuPont Crop Protection, Memphis, TN, 3DuPont Crop Protection, Wilmington, DE, 4DuPont Crop Protection, Denver, CO (242)

 

11:20   Rush Skeletonweed Management in Grasslands with aminocyclopyrachlor. T. Prather*1, I. C. Burke2, J. Wallace1; 1University of Idaho, Moscow, ID, 2Washington State University, Pullman, WA (243)

 

11:40   Weed Control with aminocyclopyrachlor in Pastures and Rangeland. R. N. Rupp*1, M. Edwards2, J. Harbour2, J. H. Meredith3, S. K. Rick4; 1DuPont Crop Protection, Edmond, OK, 2DuPont Crop Protection, Wilmington, DE, 3DuPont Crop Protection, Memphis, TN, 4DuPont Crop Protection, Waterloo, IL (244)




WEDNESDAY  MORNING    FEBRUARY 9

Section 13. Integrated Weed Management

LOCATION:   Grand Ballroom II
TIME:   8:00 AM - 12:00 PM
CHAIR:   Darrin Dodds
    Mississippi State University
    Mississippi State, MS

 

*SPEAKER

 

8:00   IWM is Level I IPM; Let's Aim Higher. R. F. Norris*; University of California, Davis, Davis, CA (245)

 

8:20   Do Beetles Eat Weed Seeds: The Effect of Site and Season on the Diet Composition of a Common Ground Beetle (Pterostichus melanarius) in Western Oregon Vegetable Crops. L. A. Moulton*, E. Peachey, A. Greco; Oregon State University, Corvallis, OR (246)

 

8:40   Utilizing the Critical Period of Weed Control Concept to Optimize Herbicide Timing in Lentil. L. Fedoruk1, S. Shirtliffe*2, E. N. Johnson3; 1BASF Canada, Saskatoon, SK, 2University of Saskatchewan, Saskatoon, SK, 3Agriculture and Agri-Food Canada, Scott, SK (247)

 

9:00   A Review of Smother Cropping and Associated Mechanisms of Weed Suppression. S. Wedryk*1, J. Cardina2; 1The Ohio State University, Columbus, OH, 2The Ohio State University, Wooster, OH (248)

 

9:20   Synergism Between Cereal Rye Mulch and Soybean Planting Density. M. R. Ryan*1, S. B. Mirsky2, D. A. Mortensen1, J. R. Teasdale2, W. Curran1; 1The Pennsylvania State University, University Park, PA, 2USDA-ARS, Beltsville, MD (249)

 

9:40   Effect of Nitrogen Rates and Plant Density on Growth Indices of Corn (Zea mays L.) Under Stale Seed-Bed Planting System. M. Farhang far*1, H. Rahimian Mashhadi2, M. R. Bihamta2; 1University of Tehran, Karaj, Iran, 2University of Tehran, Tehran, Iran (250)

 

10:00   Break

 

10:20   Evaluation of Interaction Between Fertilizer Rates and Herbicide Doseage on Corn Weed Control. A. Zare*; University of Tehran, Karaj, Iran (251)

 

10:40   Respect the Rotation - The Key to Weed Resistance Management. H. J. Strek*1, M. Hess1, D. Hurst2; 1Bayer CropScience, Frankfurt, Germany, 2Bayer CropScience, Raleigh, NC (252)

 

11:00   Common Ragweed in Glyphosate-Resistant Sugarbeet. J. M. Stachler*, J. L. Luecke, J. M. Fisher; North Dakota State University and University of Minnesota, Fargo, ND (253)

 

11:20   Systems to Manage Perennial Weeds in Organic Transition. W. C. Johnson III*; USDA-ARS, Tifton, GA (254)

 

11:40   Weed Management in Organic Vineyards. A. Shrestha*1, M. W. Fidelibus2, K. Kurtural1, M. L. Moretti1; 1California State University, Fresno, CA, 2University of California, Davis, Parlier, CA (255)

 

12:00   Business Meeting




WEDNESDAY  AFTERNOON    FEBRUARY 9

The US Witchweed Eradication Effort Turns 50

LOCATION:   Galleria North
TIME:   1:00 PM - 5:00 PM
CHAIR:   Alan Tasker
    USDA, APHIS, Plant Protection & Quarantine
    Riverdale, MD

 

*SPEAKER

 

1:00   The Parasitic Plant Genome Project: New Tools for Understanding the Biology of Orobanche and Striga. J. Westwood*; Virginia Tech, Blacksburg, VA (256)

 

1:20   Race-Specific Host Resistance to Striga - New Insights into an Old Foe. M. Timko*; University of Virginia, Charlottesville, VA (257)

 

1:40   Biotechnological Approaches to Parasitic Weed Control. R. Aly*; Newe Yaar Research Center, Ramat Yeshai, Israel (258)

 

2:00   Control of Striga using IR-Maize: A Success Story – How Long Will it Last? J. Ransom*1, F. Kanampiu2, M. Burnet3, J. Gressel4; 1North Dakota State University, Fargo, ND, 2CIMMYT, Nairobi, Kenya, 3Hi-Cap Formulations, Tubingen, Germany, 4Weizmann Institute of Science, Rehovot, Israel (259)

 

2:20   Current Approaches to Control of Cuscuta. T. Lanini*; University of California, Davis, Davis, CA (260)

 

2:40   Discussion




WEDNESDAY  AFTERNOON    FEBRUARY 9

Nonchemical Tactics in Herbicide Resistant Management

LOCATION:   Grand Ballroom I
TIME:   1:00 PM - 5:00 PM
CHAIR:   Prashant Jha
    Montana State University
    Huntley, MT

 

*SPEAKER

 

1:00   Integrated Cropping Practices Reduce the Risk of Resistance Development. R. E. Blackshaw*; Agriculture and Agri-Food Canada, Lethbridge, AB (261)

 

1:30   Weed Control Tactics and Weed Population Dynamics. N. R. Burgos*1, A. Lawton-Rauh2; 1University of Arkansas, Fayetteville, AR, 2Clemson University, Clemson, SC (262)

 

2:00   The Needle in the Haystack: Keeping it Lost. F. Forcella*; USDA, Morris, MN (263)

 

2:30   Preventing the spread of herbicide resistance. B. D. Maxwell*; Montana State University, Bozeman, MT (264)

 

3:00   Break

 

3:20   Gene Flow from Herbicide Resistant Crops: Will it Revive Non-chemical Weed Management Tactics? C. Mallory-Smith*, A. G. Hulting; Oregon State University, Corvallis, OR (265)

 

3:50   Integrating Nonchemical Practices into Simulation Modeling for Herbicide Resistance: A Proactive Strategy. J. K. Norsworthy*1, M. V. Bagavathiannan1, P. Neve2, K. L. Smith3, I. Zelaya4; 1University of Arkansas, Fayetteville, AR, 2University of Warwick, Wellesbourne, England, 3University of Arkansas, Monticello, Monticello, AR, 4Syngenta, Jealot Hills, England (266)

 

4:20   Impact of Cover Crop Residue and Tillage on the Control of Glyphosate-Resistant Palmer amaranth. A. S. Culpepper*1, L. M. Sosnoskie1, J. Kichler2, L. E. Steckel3; 1University of Georgia, Tifton, GA, 2University of Georgia, Oglethorpe, GA, 3University of Tennessee, Jackson, TN (267)




WEDNESDAY  AFTERNOON    FEBRUARY 9

Section 1. Agronomic Crops

LOCATION:   Grand Ballroom II
TIME:   1:00 PM - 5:00 PM
CHAIR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN

 

*SPEAKER

 

1:00   Engineered Resistance to HPPD Inhibitors, the Next Generation of Weed Management in Soybean. B. S. Manley*1, G. D. Vail2, B. Vernooij1, K. Terpstra3, A. Silverstone1; 1Syngenta Biotechnology, Inc., Research Triangle Park, NC, 2Syngenta, Greensboro, NC, 3Syngenta Seeds, Inc., Clinton, IL (268)

 

1:20   Crop Tolerance and Yield of Dow AgroSciences Herbicide Trait Technology in Corn. J. M. Ellis*1, S. C. Ditmarsen2, D. M. Simpson3, D. C. Ruen4, S. M. Ferguson5, N. N. Carranza6, C. A. Gallup7, B. W. Hopkins8; 1Dow AgroSciences, Smithville, MO, 2Dow AgroSciences, Madison, WI, 3Dow AgroSciences, Indianapolis, IN, 4Dow AgroSciences, Lanesboro, MN, 5Dow AgroSciences, Omaha, NE, 6Dow AgroSciences, Bogota, Colombia, 7Dow AgroSciences, Davenport, IA, 8Dow AgroSciences, Westerville, OH (269)

 

1:40   DHT Soybean Yield Components Response to Postemergence Applications of 2,4-D. A. P. Robinson*1, D. M. Simpson2, W. G. Johnson1; 1Purdue University, West Lafayette, IN, 2Dow AgroSciences, Indianapolis, IN (270)

 

2:00   Weed Control in Dicamba-Resistant Soybeans. C. B. Brabham*1, B. Johnson1, B. G. Young2, J. M. Matthews2, P. T. Marquardt1, C. Slack3, K. W. Bradley4, A. York5, A. S. Culpepper6, A. Hager7, K. Al-Khatib8, L. E. Steckel9, M. Moechnig10, M. Loux11, M. L. Bernards12, R. J. Smeda4; 1Purdue University, West Lafayette, IN, 2Southern Illinois University, Carbondale, IL, 3University of Kentucky, Lexington, KY, 4University of Missouri, Columbia, MO, 5North Carolina State University, Raleigh, NC, 6University of Georgia, Tifton, GA, 7University of Illinois, Urbana, IL, 8Kansas State University, Manhattan, KS, 9University of Tennessee, Jackson, TN, 10South Dakota State University, Brookings, SD, 11The Ohio State University, Columbus, OH, 12University of Nebraska-Lincoln, Lincoln, NE (271)

 

2:20   Management of Glyphosate-Resistant Waterhemp and Common Ragweed in Dicamba-Resistant Soybeans. R. J. Smeda*1, S. Seifert-Higgins2; 1University of Missouri, Columbia, MO, 2Monsanto Company, St. Louis, MO (272)

 

2:40   Effect of Dicamba Rates on Soybean Yield Components. A. P. Robinson*, W. G. Johnson; Purdue University, West Lafayette, IN (273)

 

3:00   Break

 

3:20   Saflufenacil Efficacy on Horseweed (Conyza canadensis) and Effects on the Absorption and Translocation of Glyphosate. T. W. Eubank*1, V. K. Nandula1, K. N. Reddy2, D. R. Shaw3; 1Mississippi State University, Stoneville, MS, 2USDA-ARS, Stoneville, MS, 3Mississippi State University, Mississippi State, MS (274)

 

3:40   Pindar[TM] GT Control of Conyza sp. Biotypes in California. M. Sorribas*1, M. L. Moretti2, A. Shrestha2, R. K. Mann1, G. W. Sthur3, M. L. Fisher3; 1Dow AgroSciences, Indianapolis, IN, 2California State University, Fresno, CA, 3Dow AgroSciences, Fresno, CA (275)

 

4:00   Pindar GT: Results of Large Scale Demonstration Trials in California in 2010. J. P. Mueller*1, B. Bisabri2, M. L. Fisher3, M. Sorribas4, R. K. Mann4, D. G. Shatley5, J. Yerneni3; 1Dow AgroSciences, Brentwood, CA, 2Dow AgroSciences, Orinda, CA, 3Dow AgroSciences, Fresno, CA, 4Dow AgroSciences, Indianapolis, IN, 5Dow AgroSciences, Lincoln, CA (276)

 

4:20   Herbicide Programs for the Management of Palmer Amaranth and Waterhemp in Conventional, Glyphosate-Resistant, and Glufosinate-Resistant Soybeans. K. K. Rosenbaum*, T. R. Legleiter, K. W. Bradley; University of Missouri, Columbia, MO (277)

 

4:40   Grain Sorghum Response to Pyrasulfotole & Bromoxynil and Growth Regulators. N. G. Lally*1, C. R. Thompson1, D. Peterson1, L. Maddux2; 1Kansas State University, Manhattan, KS, 2Kansas State University, Rossville, KS (278)




WEDNESDAY  AFTERNOON    FEBRUARY 9

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

LOCATION:   Galleria South
TIME:   1:00 PM - 5:00 PM
CHAIR:   Ronald Wright
    Mississippi State University
    Mississippi State, MS

 

*SPEAKER

 

1:00   Evaluation of Cattle Grazing Patterns in Response to Herbicide Applications and Subsequent Weed Removal in Tall Fescue Pastures. K. W. Bradley*, B. C. Sather, T. R. Legleiter; University of Missouri, Columbia, MO (279)

 

1:20   Safening of metsulfuron with 2,4-D in Bahiagrass. B. A. Sellers*1, J. Ferrell2, G. MacDonald2; 1University of Florida, Ona, FL, 2University of Florida, Gainesville, FL (280)

 

1:40   The Effect of Weed Management following Glyphosate-resistant Alfalfa Stand Establishment on Forage Productivity and Stand Longevity. W. J. Everman*1, J. J. Kells1, R. H. Leep1, D. Min2, A. J. Chomas1, T. Dietz1; 1Michigan State University, East Lansing, MI, 2Michigan State University, Chatham, MI (281)

 

2:00   Warm Season Perennial Weed Control in Cool Season Grass Hay. W. Witt*; University of Kentucky, Lexington, KY (282)

 

2:20   SolviNix LC, the First Plant Virus-Based Bioherbicide. R. Charudattan*, E. Hiebert; BioProdex, Inc., Gainesville, FL (283)

 

2:40   Utility of aminopyralid + metsulfuron for Weed Control, Seedhead and Grass Height Suppression in Bahia and Fescue Roadsides. V. F. Peterson*1, W. N. Kline2, B. B. Sleugh3, P. L. Burch4, J. Ferrell5, W. Witt6, R. J. Smeda7, S. F. Enloe8, J. L. Belcher8, F. H. Yelverton9, L. S. Warren9; 1Dow AgroSciences, Mulino, OR, 2Dow AgroSciences, Duluth, GA, 3Dow AgroSciences, Des Moines, IA, 4Dow AgroSciences, Christianburg, VA, 5University of Florida, Gainesville, FL, 6University of Kentucky, Lexington, KY, 7University of Missouri, Columbia, MO, 8Auburn University, Auburn, AL, 9North Carolina State University, Raleigh, NC (284)

 

3:00   Break

 

3:20   Suppression of Medusahead Establishment with Preemergence aminopyralid and aminocyclopyrachlor Treatments. J. M. DiTomaso*, G. B. Kyser; University of California, Davis, Davis, CA (285)

 

3:40   Continuing aminocyclopyrachlor Research at Colorado State University. B. Lindenmayer*1, P. Westra1, S. J. Nissen1, D. L. Shaner2; 1Colorado State University, Fort Collins, CO, 2USDA, Fort Collins, CO (286)

 

4:00   Alternatives for MSMA along Roadsides. R. S. Wright*, J. D. Byrd; Mississippi State University, Mississippi State, MS (287)

 

4:20   Business Meeting




WEDNESDAY  AFTERNOON    FEBRUARY 9

Section 11. Physiology

LOCATION:   Parlor
TIME:   1:00 PM - 5:00 PM
CHAIR:   Franck Dayan
    USDA-ARS
    University, MS

 

*SPEAKER

 

1:00   A Framework for Defining Herbicide-Resistant Weed Biotypes. W. Vencill*1, R. L. Nichols2, D. G. Shilling1; 1University of Georgia, Athens, GA, 2Cotton Incorporated, Cary, NC (288)

 

1:20   Waterhemp Evolves Resistance to a Fifth Class of Herbicides, HPPD Inhibitors. P. J. Tranel*, N. E. Hausman, S. Singh, L. Gonzini, D. Maxwell, D. E. Riechers, A. Hager; University of Illinois, Urbana, IL (289)

 

1:40   Palmer Amaranth Biotypes Response to HPPD Inhibiting Herbicides. C. R. Thompson*, N. G. Lally, D. Peterson; Kansas State University, Manhattan, KS (290)

 

2:00   Cross-Resistance Patterns of Acetolactate Synthase (ALS) Inhibitor-Resistant Globe Fringerush (Fimbristylis miliacea) Biotypes in Southern Brazil. C. E. Schaedler*1, J. A. Noldin2, D. Agostinetto1, N. R. Burgos3, L. C. Fontana1; 1Universidade Federal de Pelotas, Pelotas, Brazil, 2Epagri, Itajai, Brazil, 3University of Arkansas, Fayetteville, AR (291)

 

2:20   Investigating Cross-Resistance to Glufosinate in Glyphosate-Resistant Italian Ryegrass Populations. W. V. Avila*, C. Mallory-Smith; Oregon State University, Corvallis, OR (292)

 

2:40   Potential for Evolution of Resistance to Pyroxasulfone in Lolium rigidum Populations. R. Busi*, T. A. Gaines, S. B. Powles; University of Western Australia, Crawley, WA, Australia (293)

 

3:00   Break

 

3:20   Biokinetics and Mechanism of Selectivity of Saflufenacil (KixorTM). C. L. Brommer*1, K. Grossmann2, R. A. Liebl3; 1BASF, Raleigh, NC, 2BASF Agricultural Research Center, Limburgerhof, Germany, 3BASF Corporation, Research Triangle Park, NC (294)

 

3:40   Feral Rye Stage of Growth Effects on Imidazolinone Translocation and Efficacy. M. Ostlie*1, D. L. Shaner2, P. Westra1; 1Colorado State University, Fort Collins, CO, 2USDA, Fort Collins, CO (295)

 

4:00   Absorption, Translocation, and Metabolism of Quizalofop and Rimsulfuron in Herbicide-Resistant Grain Sorghum. J. Abit*1, K. Al-Khatib1, M. Tuinstra2; 1Kansas State University, Manhattan, KS, 2Purdue University, West Lafayette, IN (296)

 

4:20   Influence of Light Intensity in Mechanism of Paraquat Resistance in Resistant (Conyza bonariensis) Biotype from California. M. L. Moretti*1, B. D. Hanson2, K. J. Hembree3, A. Shrestha1; 1California State University, Fresno, CA, 2University of California, Davis, Davis, CA, 3UCCE, Fresno, CA (297)

 

4:40   Impact of Pesticides on the Nutritional Content of Fruit and Leafy Tissue of Crops. G. Armel*, D. Kopsell, C. Sams, J. Vargas, R. Koepke-Hill; University of Tennessee, Knoxville, TN (298)




WEDNESDAY  AFTERNOON    FEBRUARY 9

WSSA Business Meeting

LOCATION:   Galleria South
TIME:   5:15 PM - 6:30 PM

 





WEDNESDAY  AFTERNOON    FEBRUARY 9

Willamette Valley Reception

LOCATION:   Grand Ballroom I and II
TIME:   6:30 PM - 8:00 PM

 





THURSDAY  MORNING    FEBRUARY 10

Practitioners Forum

LOCATION:   Parlor
TIME:   8:00 AM - 12:00 PM
CHAIR:   Carol Mallory-Smith
    Oregon State University
    Corvallis, OR

 





THURSDAY  MORNING    FEBRUARY 10

The Science of Herbicide Discovery

LOCATION:   Grand Ballroom II
TIME:   8:00 AM - 12:00 PM
CHAIR:   Stephen Duke
    USDA-ARS
    Oxford, MS

 

*SPEAKER

 

8:00   Why Are There No New Herbicide Modes of Action in Recent Years? S. O. Duke*; USDA-ARS, Oxford, MS (299)

 

8:30   QSAR and QSPR in Herbicide Discovery. R. D. Clark*; Simulations Plus, Inc., Lancaster, CA (300)

 

9:00   High Throughput Screening and Followup on Enzymes of the Non Mevalonate Pathway. M. C. Witschel*; BASF, Ludwigshafen, Germany (301)

 

9:30   Approaches to the Use of Natural Products for Herbicide Discovery. F. E. Dayan*; USDA-ARS, University, MS (302)

 

10:00   Break

 

10:20   Using "Physionomics and Metabolomics" Approaches to Discovery of New Modes of Action. K. Grossmann*; BASF Agricultural Research Center, Limburgerhof, Germany (303)

 

10:50   Chemical Genetic Approaches to Herbicide Discovery. T. A. Walsh*; Dow AgroSciences, Indianapolis, IN (304)

 

11:20   Discussion




THURSDAY  MORNING    FEBRUARY 10

Section 1. Agronomic Crops

LOCATION:   Grand Ballroom I
TIME:   8:00 AM - 12:00 PM
CHAIR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN

 

*SPEAKER

 

8:00   Impact of Tillage Intensity, Post-Harvest Residue Management, and Herbicide Placement on Bermudagrass Interference in Sugarcane. C. D. Dalley*, E. P. Richard, Jr., R. P. Viator; USDA-ARS, Houma, LA (305)

 

8:20   Glyphosate Application Timing(s) and Tank Mixes for Weed Control and Resistance Management in Glyphosate-Resistant Sugar Beet. A. Anand*1, P. Jha2, J. O. Garcia2; 1Montana State University, Bozeman, MT, 2Montana State University, Huntley, MT (306)

 

8:40   Differences in Herbicide Response Among Barnyardgrass Populations from Mississippi. J. A. Bond*, V. K. Nandula, R. C. Bond, T. W. Eubank; Mississippi State University, Stoneville, MS (307)

 

9:00   Synergism of Imazethapyr plus Propanil Combinations for Red Rice Control in Clearfield Rice. E. P. Webster*, J. B. Hensley; LSU AgCenter, Baton Rouge, LA (308)

 

9:20   RebelEX for Broad Spectrum Weed Control in U.S. Rice. J. D. Siebert*1, A. T. Ellis1, V. B. Langston2, R. B. Lassiter3, R. K. Mann4, D. G. Shatley5, L. C. Walton6; 1Dow AgroSciences, Greenville, MS, 2Dow AgroSciences, The Woodlands, TX, 3Dow AgroSciences, Little Rock, AR, 4Dow AgroSciences, Indianapolis, IN, 5Dow AgroSciences, Lincoln, CA, 6Dow AgroSciences, Tupelo, MS (309)

 

9:40   Shade Avoidance: the Importance of Plant-to-Plant Variability. C. J. Swanton*1, E. Page1, P. Westra2, M. Loux3, A. Dobbels3, K. L. Smith4, J. Bullington4, H. Wright5, C. L. Foresman6; 1University of Guelph, Guelph, ON, 2Colorado State University, Fort Collins, CO, 3The Ohio State University, Columbus, OH, 4University of Arkansas, Monticello, Monticello, AR, 5Syngenta Crop Protection Canada Inc, Guelph, ON, 6Syngenta, Greensboro, NC (310)

 

10:00   Break

 

10:20   Pyroxasulfone:Profile of New Herbicide for Residual Weed Control. Y. Yamaji*1, H. Honda1, M. Kobayashi2, O. Watanabe2; 1Kumiai America, White Plains, NY, 2Kumiai Chemical Industry, Tokyo, Japan (311)

 

10:40   Utility of Pyroxasulfone for Residual Weed Control in Corn and Soybean. W. E. Thomas*1, J. S. Harden1, R. Bond1, S. J. Bowe1, R. A. Liebl1, Y. Yamaji2, H. Honda2, T. Ambe3; 1BASF Corporation, Research Triangle Park, NC, 2Kumiai America, White Plains, NY, 3Kumiai Chemical Industry, Tokyo, Japan (312)

 

11:00   Management of Italian Ryegrass with Pyroxasulfone in Winter Wheat. S. Tan*1, R. Bond1, S. J. Bowe1, R. A. Liebl1, Y. Yamaji2, H. Honda2, T. Ambe3; 1BASF Corporation, Research Triangle Park, NC, 2Kumiai America, White Plains, NY, 3Kumiai Chemical Industry, Tokyo, Japan (313)

 

11:20   Evaluation of Pyroxasulfone for Grass Weed Management in Winter Wheat in Western Oregon. A. G. Hulting*, B. Hinds-Cook, D. Curtis, C. Mallory-Smith; Oregon State University, Corvallis, OR (314)

 

11:40   Impact of Volunteer Roundup-Ready Corn in Wheat-Corn-Fallow. A. Schlegel1, B. D. Olson2, J. D. Holman*3; 1Kansast State University, Tribune, KS, 2Dow AgroSciences, Geneva, NY, 3Kansas State University, Garden City, KS (315)




THURSDAY  MORNING    FEBRUARY 10

Section 9. Weed Biology and Ecology

LOCATION:   Galleria
TIME:   8:00 AM - 12:00 PM
CHAIR:   Richard Smith
    University of New Hampshire
    Durham, NH

 

*SPEAKER

 

8:00   Empirical Insights Inform a Spatially Explicit Invasive Species Model. E. Rauschert*, D. A. Mortensen; The Pennsylvania State University, University Park, PA (316)

 

8:20   Ecology, Biology and Control of Exotic-Invasive Weeds in Coastal Forestry of British Columbia, Canada. R. R. Prasad*; Pacific Forestry Centre, Victoria, BC (317)

 

8:40   Survey of Invasive Plants on Guam and Identification of the 20 Most Widespread. G. P. Reddy*; University of Guam, Mangilao, GU (318)

 

9:00   Top 10 Worst Herbicide Resistant Weeds Globally. I. M. Heap*; WeedSmart, Corvallis, OR (319)

 

9:20   Geographical Distribution of ACCase Inhibitor Resistant Echinochloa Species in Reclaimed Paddy Fields, Seosan, Korea. D. Kim, S. Lim*, M. Park; Seoul National University, Seoul, South Korea (320)

 

9:40   ALS Inhibitor Resistant Echinochloa Species Evolved in Korean Paddy Fields. D. Kim*, S. Kang, M. Yook, J. Song; Seoul National University, Seoul, South Korea (321)

 

10:00   Break

 

10:20   Status of Glyphosate-Resistant Italian Ryegrass in Mississippi. R. C. Bond*, V. K. Nandula, J. A. Bond, T. W. Eubank; Mississippi State University, Stoneville, MS (322)

 

10:40   Growth and Fitness of Glyphosate-Resistant Giant Ragweed. C. B. Brabham*, W. G. Johnson; Purdue University, West Lafayette, IN (323)

 

11:00   Studies on Glyphosate Resistant Giant Ragweed in Ontario. J. Vink1, F. J. Tardif*2, P. H. Sikkema1, D. E. Robinson1, M. B. Lawton3; 1University of Guelph, Ridgetown, ON, 2University of Guelph, Guelph, ON, 3Monsanto Canada, Guelph, ON (324)

 

11:20   A Modelling Approach for Understanding the Risks of Barnyardgrass Evolving Resistance to Herbicides in Rice. M. V. Bagavathiannan*1, J. K. Norsworthy1, K. L. Smith2, P. Neve3; 1University of Arkansas, Fayetteville, AR, 2University of Arkansas, Monticello, Monticello, AR, 3University of Warwick, Wellesbourne, England (325)

 

11:40   Differential Tolerance to Glufosinate and HPPD Inhibitors among Palmer Amaranth Populations. G. M. Botha*, N. R. Burgos, E. L. Alcobar; University of Arkansas, Fayetteville, AR (326)




THURSDAY  AFTERNOON    FEBRUARY 10

Section 1. Agronomic Crops

LOCATION:   Grand Ballroom I
TIME:   1:00 PM - 5:00 PM
CHAIR:   Lawrence Steckel
    University of Tennessee
    Jackson, TN

 

*SPEAKER

 

1:00   Timing the Removal of Winter Peas Intercropped with Winter Wheat to Optimize Available Soil Nitrogen and Moisture in a Dryland Small Grain System. K. A. Borrelli*, I. C. Burke, R. T. Koenig, D. R. Huggins, S. H. Hulbert; Washington State University, Pullman, WA (327)

 

1:20   The Impact of Two Years of Wild Oat Management After Four Years of Low Crop Inputs in Barley and Canola. K. N. Harker*1, S. Brandt2, J. T. O'Donovan1, R. E. Blackshaw3, E. N. Johnson2, R. Kutcher4; 1Agriculture and Agri-Food Canada, Lacombe, AB, 2Agriculture and Agri-Food Canada, Scott, SK, 3Agriculture and Agri-Food Canada, Lethbridge, AB, 4Agriculture and Agri-Food Canada, Melfort, SK (328)

 

1:40   Environmental Conditions, Growth Stages and Fungicides Affect Herbicide Tolerance of Winter Wheat. M. De Jong*1, P. H. Sikkema2, F. J. Tardif1, M. Cowbrough3; 1University of Guelph, Guelph, ON, 2University of Guelph, Ridgetown, ON, 3OMAFRA, Guelph, ON (329)

 

2:00   Preemergence Ethofumesate Increases Postemergence Spray Retention on Common Lambsquarters. A. R. Kniss1, D. C. Odero*2; 1University of Wyoming, Laramie, WY, 2University of Florida, Belle Glade, FL (330)

 

2:20   BAS762ACH for Postemergence Weed Control in Dry Beans. P. Jha*1, J. O. Garcia1, A. Anand2; 1Montana State University, Huntley, MT, 2Montana State University, Bozeman, MT (331)

 

2:40   Impact of Time of Day on Herbicide Efficacy in Soybean. P. H. Sikkema*1, R. E. Nurse2, N. Soltani1; 1University of Guelph, Ridgetown, ON, 2Agriculture and Agri-Food Canada, Harrow, ON (332)

 

3:00   Break

 

3:20   Efficacy and Crop Tolerance of GF-2654 and GF-2726 in Corn. E. F. Scherder*1, M. E. Schultz2, A. T. Ellis3, J. S. Richburg4, J. A. Huff5, B. D. Olson6, G. R. Tofoli7; 1Dow AgroSciences, Huxley, IA, 2Dow AgroSciences, Indianapolis, IN, 3Dow AgroSciences, Greenville, MS, 4Dow AgroSciences, Headland, AL, 5Dow AgroSciences, Herrin, IL, 6Dow AgroSciences, Geneva, NY, 7Dow AgroSciences, Goiania, Brazil (333)

 

3:40   Colorado Light Avoidance Corn Ecology Study. P. Westra*1, C. J. Swanton2, E. Page2, M. Loux3, A. Dobbels3, K. L. Smith4, J. Bullington4, H. Wright5, C. L. Foresman6; 1Colorado State University, Fort Collins, CO, 2University of Guelph, Guelph, ON, 3The Ohio State University, Columbus, OH, 4University of Arkansas, Monticello, Monticello, AR, 5Syngenta Crop Protection Canada Inc, Guelph, ON, 6Syngenta, Greensboro, NC (334)

 

4:00   Maize ( /Zea mays/ L.) Fitness in Response to Light Quality and Drought Stress. W. Obeidat*, C. J. Swanton; University of Guelph, Guelph, ON (335)

 

4:20   Sidedress Nitrogen Application Rate and Common Lambquarters Effect on Corn Grain Yield. L. E. Bast*, W. J. Everman, D. D. Warncke; Michigan State University, East Lansing, MI (336)

 

4:40   The Effect of the R:Fr Ratio on Maize Root Morphology. M. Afifi*, C. J. Swanton; University of Guelph, Guelph, ON (337)

 

5:00   Business Meeting




THURSDAY  AFTERNOON    FEBRUARY 10

Section 7. Education and Extension

LOCATION:   Parlor
TIME:   1:00 PM - 5:00 PM
CHAIR:   Joe Armstrong
    Oklahoma State University
    Stillwater, OK

 

*SPEAKER

 

1:00   Teaching Undergraduate Weed Science as a "Blended Course:" Instructor and Student Perspectives. P. B. Trewatha*; Missouri State University, Springfield, MO (338)

 

1:20   Forming Undergraduate Research Partnerships Focused On Invasive Plants. R. E. Loeb*; The Pennsylvania State University, DuBois, PA (339)

 

1:40   Status of Weed Science at Land-Grant Universities in the United States and its Territories. J. Derr*, A. Rana; Virginia Tech, Virginia Beach, VA (340)

 

2:00   Teaching Spray Nozzle Tip Selection. R. N. Klein*; University of Nebraska-Lincoln, North Platte, NE (341)

 

2:20   UGA Weed Science Survival Kit. E. P. Prostko*; University of Georgia, Tifton, GA (342)

 

2:40   Improved Herbicide-Resistance Management Through Education: Implementation of WSSA Training Modules to Increase Awareness of Herbicide-Resistance Management. J. M. Stachler*1, W. J. Everman2, L. Glasgow3, J. Schroeder4, D. R. Shaw5, J. K. Soteres6, F. J. Tardif7; 1North Dakota State University and University of Minnesota, Fargo, ND, 2Michigan State University, East Lansing, MI, 3Syngenta Crop Protection, Greensboro, NC, 4New Mexico State University, Las Cruces, NM, 5Mississippi State University, Mississippi State, MS, 6Monsanto Company, St. Louis, MO, 7University of Guelph, Guelph, ON (343)

 

3:00   Break

 

3:20   Risk Assessment of Glyphosate Resistance in Western Canada. H. J. Beckie*1, K. N. Harker2, L. M. Hall3, F. A. Holm4, R. H. Gulden5; 1Agriculture and Agri-Food Canada, Saskatoon, SK, 2Agriculture and Agri-Food Canada, Lacombe, AB, 3University of Alberta, Edmonton, AB, 4University of Saskatchewan, Saskatoon, SK, 5University of Manitoba, Winnipeg, MB (344)

 

3:40   Preparing Vineyard Managers for 2,4-D Tolerant Corn and Soybean. L. Jiang*, D. Doohan; The Ohio State University, Wooster, OH (345)

 

4:00   Development of the University of Alaska Fairbanks Invasive Plant Management Plan. M. E. Heidemann*1, S. Todd1, S. S. Seefeldt2, T. Wurtz3; 1University of Alaska Fairbanks, Fairbanks, AK, 2USDA-ARS, Fairbanks, AK, 3US Forest Service, Fairbanks, AK (346)

 

4:20   WeedImages.org: An Easy Way to Share Images, Maps and Information. J. H. LaForest*1, T. M. Webster2; 1University of Georgia, Tifton, GA, 2USDA-ARS, Tifton, GA (347)

 

4:40   ANOVA Under Different Approaches of Expressing Treatment Means as a Percentage of Control Mean. R. K. Godara*1, J. P. Geaghan2, B. J. Williams1; 1LSU AgCenter, Baton Rouge, LA, 2Louisiana State University, Baton Rouge, LA (348)

 

5:00   Business Meeting




THURSDAY  AFTERNOON    FEBRUARY 10

Section 9. Weed Biology and Ecology

LOCATION:   Galleria
TIME:   1:00 PM - 5:00 PM
CHAIR:   Richard Smith
    University of New Hampshire
    Durham, NH

 

*SPEAKER

 

1:00   Updated Report on Gene Flow. P. Byrne, P. Westra, C. T. Beil*; Colorado State University, Fort Collins, CO (349)

 

1:20   Shattercane x Sorghum Outcrossing in the Field. J. J. Schmidt*1, M. L. Bernards1, J. F. Pedersen2, J. L. Lindquist1; 1University of Nebraska-Lincoln, Lincoln, NE, 2USDA-ARS, University of Nebraska-Lincoln, Lincoln, NE (350)

 

1:40   The Effect of Digestive Tract in Different Holstein Cattle on Weed Seed Survival. H. Rahimian Mashhadi*1, M. D. Banadaki2, S. Rahimi2; 1University of Tehran, Tehran, Iran, 2University of Tehran, Karaj, Iran (351)

 

2:00   Identification of Weedy Species in Algae Production Systems. S. T. Chisholm*1, S. Fulbright1, J. Lang2, G. Wardle2, K. Dean2, P. Lammers2; 1Colorado State University, Fort Collins, CO, 2Solix Biofuels, Ft. Collins, CO (352)

 

2:20   Aspects of Floral Biology and Pollination Ecology of White Cockle (Silene latifolia). J. F. Anderson*; University of Saskatchewan, Saskatoon, SK (353)

 

2:40   Jointed Goatgrass (Aegilps cylindrica), a Secondary Product of Wheat Domestication? E. Sanchez Olguin*, J. Leonard, O. Riera-Lizarazu, C. Mallory-Smith; Oregon State University, Corvallis, OR (354)

 

3:00   Break

 

3:20   Role of Benzoxazinoid Compounds in Rye Allelopathy in Soil. J. R. Teasdale*, C. P. Rice, G. Cai; USDA-ARS, Beltsville, MD (355)

 

3:40   Modelling Herbicide Effects on Rice-Weed Competition in Transplanted Rice Cultivation. D. Kim1, B. Moon*2, J. Kim1; 1Seoul National University, Seoul, South Korea, 2Rural Development Administration, Suwon, South Korea (356)

 

4:00   Mulching Cover Crop Mixtures for Improved Weed Suppression in Organic Grain Crops. S. E. Wortman*, J. L. Lindquist, M. L. Bernards, R. Drijber, C. Francis; University of Nebraska-Lincoln, Lincoln, NE (357)

 

4:20   Emergence and Development of Red Sorrel (Rumex Acetosella L.) and Wild Blueberry Ramets (Vaccinium angustifolium Ait.). S. N. White*; University of Guelph, Truro, NS (358)

 

4:40   The Interaction of Shade Avoidance and Stress on Growth Development and Yield of Maize. E. Page, W. Liu, D. Cerrudo, C. J. Swanton*; University of Guelph, Guelph, ON (359)

 

5:00   Business Meeting




THURSDAY  AFTERNOON    FEBRUARY 10

Section 11. Physiology

LOCATION:   Grand Ballroom II
TIME:   1:00 PM - 5:00 PM
CHAIR:   Franck Dayan
    USDA-ARS
    University, MS

 

*SPEAKER

 

1:00   A Quick and Colorful Method to Detect and Quantify Shikimic Acid in Whole Plant Tissues or Plant Extracts. K. A. Kretzmer*1, D. Sammons2, J. P. Frantz1, P. J. Morris1; 1Monsanto Company, St Louis, MO, 2Monsanto Company, St. Louis, MO (360)

 

1:20   Temporal Affects on the Glyphosate Chlorimuron Interaction. R. K. Bethke*1, J. Michael2, D. Penner2; 1Auburn University, Auburn, AL, 2Michigan State University, East Lansing, MI (361)

 

1:40   Response of Conyza spp to Glyphosate is Temperature and Plant Age Dependent. B. Rubin*, Z. Kleinman, G. Ben-Ami, M. Sibony; Hebrew University of Jerusalem, Rehovot, Israel (362)

 

2:00   Response Patterns of Suspected Glyphosate Resistant Kochia Accessions. A. Wiersma*1, P. Westra1, J. E. Leach1, C. Preston2; 1Colorado State University, Fort Collins, CO, 2University of Adelaide, Adelaide, Australia (363)

 

2:20   Glyphosate Resistance in Conyza bonariensis and Lolium rigidum in Israel. Z. Kleinman, M. Matzrafi, M. Sibony, B. Rubin*; Hebrew University of Jerusalem, Rehovot, Israel (364)

 

2:40   Glyphosate Resistance in a Johnsongrass (Sorghum halepense L.) Biotype from Arkansas. D. S. Riar*, J. K. Norsworthy, D. B. Johnson, R. C. Scott, M. V. Bagavathiannan; University of Arkansas, Fayetteville, AR (365)

 

3:00   Break

 

3:20   Summarizing Glyphosate Resistance Mechanisms: More Exclusion Examples. D. Sammons*1, E. Ostrander2, B. Duncan2, X. Ge3, A. D'Avignon3, J. Ackerman3, K. L. Smith4, A. Collavo5, M. Sattin6; 1Monsanto Company, St. Louis, MO, 2Monsanto, St. Louis, MO, 3Washington University, St. Louis, MO, 4University of Arkansas, Monticello, Monticello, AR, 5Consiglio Nazionale delle Ricerche (CNR), Padua, Italy, 6CNR, Padua, Italy (366)

 

3:40   Understanding the Mn Chelation Properties of Glyphosate in Glyphosate-Resistant Soybean. D. Sammons*1, S. Murdock2, M. Bleeke2, A. Mehrsheikh2, R. Grabiak2, W. Harris3; 1Monsanto Company, St. Louis, MO, 2Monsanto, St. Louis, MO, 3University of Missouri St. Louis, St. Louis, MO (367)

 

4:00   Evidence for Maternal Inheritance of Glyphosate Resistance in Amaranthus palmeri. D. N. Ribeiro*1, F. E. Dayan2, P. Zhiqiang3, S. O. Duke3, D. R. Shaw4, V. K. Nandula5; 1Mississippi State University, Starkville, MS, 2USDA-ARS, University, MS, 3USDA-ARS, Oxford, MS, 4Mississippi State University, Mississippi State, MS, 5Mississippi State University, Stoneville, MS (368)

 

4:20   Characterization of EPSPS Gene Amplification in Palmer Amaranth (Amaranthus palmeri). T. A. Gaines*1, S. Ward2, J. E. Leach2, S. T. Chisholm2, P. Westra2; 1University of Western Australia, Crawley, WA, Australia, 2Colorado State University, Fort Collins, CO (369)

 

4:40   Business Meeting