Herbicide Resistant Weeds

HERBICIDE RESISTANT WEEDS OF USA

#Species
Click for details		Common NameYearHerbicide Mode of Action
Alabama
1.Amaranthus palmeriPalmer Amaranth2008Glycines
2.Eleusine indicaGoosegrass1987Dinitroanilines and others
3.Poa annuaAnnual Bluegrass1980Photosystem II inhibitors
4.Xanthium strumariumCommon cocklebur1988Organoarsenicals
Arkansas
1.Amaranthus palmeriPalmer Amaranth1994ALS inhibitors
2.Amaranthus palmeriPalmer Amaranth2006Glycines
3.Amaranthus retroflexusRedroot Pigweed1995ALS inhibitors
4.Ambrosia artemisiifoliaCommon Ragweed2004Glycines
5.Ambrosia trifidaGiant Ragweed2005Glycines
6.Conyza canadensisHorseweed2003Glycines
7.Echinochloa crus-galliBarnyardgrass1990Ureas and amides
9.Echinochloa crus-galli
Multiple Resistance		Barnyardgrass1999Ureas and amides
Synthetic Auxins
10.Eleusine indicaGoosegrass1989Dinitroanilines and others
12.Lolium multiflorum
Multiple Resistance		Italian Ryegrass1995ACCase inhibitors
ALS inhibitors
13.Lolium multiflorumItalian Ryegrass2003ALS inhibitors
15.Lolium multiflorum
Multiple Resistance		Italian Ryegrass2008ACCase inhibitors
ALS inhibitors
16.Lolium multiflorumItalian Ryegrass2008Glycines
17.Lolium multiflorumItalian Ryegrass2005ACCase inhibitors
18.Sorghum halepenseJohnsongrass2007Glycines
19.Xanthium strumariumCommon cocklebur1995ALS inhibitors
20.Xanthium strumariumCommon cocklebur1989Organoarsenicals
California
1.Ammania auriculataRedstem1997ALS inhibitors
2.Ammania coccineaLong-Leaved loosestrife2000ALS inhibitors
3.Avena fatuaWild Oat1996Unknown
4.Conyza bonariensisHairy Fleabane2007Glycines
6.Conyza bonariensis
Multiple Resistance		Hairy Fleabane2009Bipyridiliums
Glycines
7.Conyza canadensisHorseweed2005Glycines
8.Cyperus difformisSmallflower Umbrella Sedge1993ALS inhibitors
9.Digitaria ischaemumSmooth Crabgrass2002Synthetic Auxins
11.Echinochloa crus-galli
Multiple Resistance		Barnyardgrass2000ACCase inhibitors
Thiocarbamates and others
13.Echinochloa oryzicola
Multiple Resistance		Early Watergrass2000ACCase inhibitors
Thiocarbamates and others
14.Echinochloa phyllopogonLate Watergrass1998ACCase inhibitors
15.Echinochloa phyllopogonLate Watergrass1998Thiocarbamates and others
16.Lolium perennePerennial Ryegrass1989ALS inhibitors
17.Lolium rigidumRigid Ryegrass1998Glycines
18.Phalaris minorLittle Seed Canary Grass2001ACCase inhibitors
19.Sagittaria montevidensisCalifornia Arrowhead1993ALS inhibitors
20.Salsola ibericaRussian Thistle1994ALS inhibitors
21.Scirpus mucronatusRicefield Bulrush1997ALS inhibitors
22.Senecio vulgarisCommon Groundsel1981Photosystem II inhibitors
Colorado
1.Amaranthus retroflexusRedroot Pigweed1982Photosystem II inhibitors
2.Avena fatuaWild Oat1997ACCase inhibitors
3.Kochia scopariaKochia1982Photosystem II inhibitors
4.Kochia scopariaKochia1989ALS inhibitors
Connecticut
1.Amaranthus retroflexusRedroot Pigweed1984Photosystem II inhibitors
2.Chenopodium albumLambsquarters1992Photosystem II inhibitors
Delaware
1.Amaranthus hybridusSmooth Pigweed1977Photosystem II inhibitors
2.Amaranthus hybridusSmooth Pigweed2000ALS inhibitors
4.Ambrosia artemisiifolia
Multiple Resistance		Common Ragweed2005ALS inhibitors
PPO inhibitors
5.Chenopodium albumLambsquarters1988Photosystem II inhibitors
6.Conyza canadensisHorseweed2000Glycines
7.Conyza canadensisHorseweed2003Bipyridiliums
Florida
1.Amaranthus palmeriPalmer Amaranth2008ALS inhibitors
2.Eleusine indicaGoosegrass1996Bipyridiliums
3.Hydrilla verticillataHydrilla2002Carotenoid biosynthesis inhibitors
4.Landoltia punctataDotted Duckweed2001Bipyridiliums
5.Solanum americanumAmerican Black Nightshade1985Bipyridiliums
Georgia
1.Amaranthus palmeriPalmer Amaranth2000ALS inhibitors
2.Amaranthus palmeriPalmer Amaranth2005Glycines
3.Eleusine indicaGoosegrass1992Dinitroanilines and others
4.Lolium multiflorumItalian Ryegrass1995ACCase inhibitors
5.Sida spinosaPrickly Sida1993ALS inhibitors
Hawaii
1.Chloris inflataSwollen Fingergrass1987Photosystem II inhibitors
2.Chloris inflataSwollen Fingergrass1987Ureas and amides
3.Commelina diffusaSpreading Dayflower1957Synthetic Auxins
Idaho
1.Amaranthus retroflexusRedroot Pigweed2005Photosystem II inhibitors
2.Anthemis cotulaMayweed Chamomile1997ALS inhibitors
4.Avena fatua
Multiple Resistance		Wild Oat1993Thiocarbamates and others
Unknown
5.Avena fatuaWild Oat1992ACCase inhibitors
6.Kochia scopariaKochia1989ALS inhibitors
7.Kochia scopariaKochia1997Synthetic Auxins
8.Lactuca serriolaPrickly Lettuce1987ALS inhibitors
9.Lolium multiflorumItalian Ryegrass1991ACCase inhibitors
12.Lolium multiflorum
Multiple Resistance		Italian Ryegrass2005ACCase inhibitors
ALS inhibitors
Chloroacetamides and others
13.Salsola ibericaRussian Thistle1990ALS inhibitors
Illinois
1.Amaranthus hybridusSmooth Pigweed1993Photosystem II inhibitors
3.Amaranthus rudis
Multiple Resistance		Common Waterhemp1996ALS inhibitors
Photosystem II inhibitors
6.Amaranthus rudis
Multiple Resistance		Common Waterhemp2002ALS inhibitors
Photosystem II inhibitors
PPO inhibitors
7.Amaranthus rudisCommon Waterhemp2001Photosystem II inhibitors
8.Amaranthus rudisCommon Waterhemp1993ALS inhibitors
10.Amaranthus rudis
Multiple Resistance		Common Waterhemp2006ALS inhibitors
Glycines
11.Ambrosia artemisiifoliaCommon Ragweed1998ALS inhibitors
12.Ambrosia trifidaGiant Ragweed1998ALS inhibitors
13.Chenopodium albumLambsquarters1985Photosystem II inhibitors
14.Conyza canadensisHorseweed2005Glycines
15.Kochia scopariaKochia1992Photosystem II inhibitors
17.Kochia scoparia
Multiple Resistance		Kochia1995ALS inhibitors
Photosystem II inhibitors
18.Solanum ptycanthumEastern Black Nightshade1999ALS inhibitors
Indiana
1.Amaranthus retroflexusRedroot Pigweed1980Photosystem II inhibitors
2.Ambrosia artemisiifoliaCommon Ragweed1998ALS inhibitors
3.Ambrosia trifidaGiant Ragweed1998ALS inhibitors
4.Ambrosia trifidaGiant Ragweed1998ALS inhibitors
5.Ambrosia trifidaGiant Ragweed2005Glycines
6.Chenopodium albumLambsquarters1980Photosystem II inhibitors
7.Conyza canadensisHorseweed2002Glycines
8.Datura stramoniumJimsonweed1992Photosystem II inhibitors
10.Kochia scoparia
Multiple Resistance		Kochia1995ALS inhibitors
Photosystem II inhibitors
11.Sorghum bicolorShattercane2006ALS inhibitors
12.Sorghum halepenseJohnsongrass2005ALS inhibitors
Iowa
1.Amaranthus rudisCommon Waterhemp1993ALS inhibitors
2.Amaranthus rudisCommon Waterhemp1996Photosystem II inhibitors
3.Amaranthus rudisCommon Waterhemp2009PPO inhibitors
4.Amaranthus rudisCommon Waterhemp2009Glycines
5.Amaranthus tuberculatusTall Waterhemp2009PPO inhibitors
6.Ambrosia trifidaGiant Ragweed2000ALS inhibitors
7.Ambrosia trifidaGiant Ragweed2009Glycines
8.Chenopodium albumLambsquarters1989Photosystem II inhibitors
9.Helianthus annuusCommon Sunflower1997ALS inhibitors
10.Kochia scopariaKochia1985Photosystem II inhibitors
11.Polygonum pensylvanicumPennsylvania smartweed1990Photosystem II inhibitors
12.Setaria faberiGiant Foxtail1992Photosystem II inhibitors
13.Setaria faberiGiant Foxtail1994ACCase inhibitors
14.Sorghum bicolorShattercane1998ALS inhibitors
15.Xanthium strumariumCommon cocklebur1995ALS inhibitors
Kansas
1.Amaranthus palmeriPalmer Amaranth1991ALS inhibitors
2.Amaranthus palmeriPalmer Amaranth1995Photosystem II inhibitors
3.Amaranthus retroflexusRedroot Pigweed1995Photosystem II inhibitors
4.Amaranthus rudisCommon Waterhemp1995ALS inhibitors
5.Amaranthus rudisCommon Waterhemp1995Photosystem II inhibitors
7.Amaranthus rudis
Multiple Resistance		Common Waterhemp2001ALS inhibitors
PPO inhibitors
8.Amaranthus rudisCommon Waterhemp2006Glycines
9.Ambrosia artemisiifoliaCommon Ragweed2007Glycines
10.Ambrosia trifidaGiant Ragweed2006Glycines
11.Bromus japonicusJapanese Brome2007ALS inhibitors
12.Bromus secalinusRye Brome2007ALS inhibitors
13.Convolvulus arvensisField Bindweed1964Synthetic Auxins
14.Conyza canadensisHorseweed2005Glycines
15.Descurainia sophiaFlixweed2006ALS inhibitors
16.Erysimum repandumBushy Wallflower2005ALS inhibitors
17.Helianthus annuusCommon Sunflower1996ALS inhibitors
18.Kochia scopariaKochia1987ALS inhibitors
19.Kochia scopariaKochia1976Photosystem II inhibitors
20.Sorghum bicolorShattercane1996ALS inhibitors
21.Xanthium strumariumCommon cocklebur1997ALS inhibitors
Kentucky
1.Amaranthus hybridusSmooth Pigweed1987Photosystem II inhibitors
2.Amaranthus hybridusSmooth Pigweed1992ALS inhibitors
3.Conyza canadensisHorseweed2001Glycines
4.Sorghum halepenseJohnsongrass1991ACCase inhibitors
Louisiana
1.Echinochloa crus-galliBarnyardgrass1995Ureas and amides
2.Echinochloa crus-galliBarnyardgrass1998Synthetic Auxins
3.Rottboellia exaltaItchgrass1997ACCase inhibitors
4.Sorghum halepenseJohnsongrass1997ACCase inhibitors
5.Xanthium strumariumCommon cocklebur1992Organoarsenicals
Maine
1.Amaranthus retroflexusRedroot Pigweed1985Photosystem II inhibitors
2.Chenopodium albumLambsquarters1985Photosystem II inhibitors
Maryland
1.Abutilon theophrastiVelvetleaf1984Photosystem II inhibitors
2.Amaranthus hybridusSmooth Pigweed1972Photosystem II inhibitors
3.Amaranthus retroflexusRedroot Pigweed1998ALS inhibitors
4.Chenopodium albumLambsquarters1982Photosystem II inhibitors
5.Conyza canadensisHorseweed2002Glycines
6.Echinochloa crus-galliBarnyardgrass1978Photosystem II inhibitors
7.Lolium multiflorumItalian Ryegrass1998ACCase inhibitors
8.Setaria faberiGiant Foxtail1984Photosystem II inhibitors
9.Setaria glaucaYellow Foxtail (glauca)1984Photosystem II inhibitors
10.Stellaria mediaCommon Chickweed2009ALS inhibitors
11.Xanthium strumariumCommon cocklebur1998ALS inhibitors
Massachusetts
1.Amaranthus hybridusSmooth Pigweed1983Photosystem II inhibitors
2.Chenopodium albumLambsquarters1983Photosystem II inhibitors
Michigan
1.Abutilon theophrastiVelvetleaf2004Photosystem II inhibitors
2.Amaranthus hybridusSmooth Pigweed2002ALS inhibitors
4.Amaranthus powellii
Multiple Resistance		Powell Amaranth2001Photosystem II inhibitors
Ureas and amides
6.Amaranthus retroflexus
Multiple Resistance		Redroot Pigweed2001Photosystem II inhibitors
Ureas and amides
7.Amaranthus tuberculatusTall Waterhemp2000ALS inhibitors
8.Ambrosia artemisiifoliaCommon Ragweed1998ALS inhibitors
9.Ambrosia artemisiifoliaCommon Ragweed1990Photosystem II inhibitors
10.Atriplex patulaSpreading Orach2003Photosystem II inhibitors
11.Chenopodium albumLambsquarters1975Photosystem II inhibitors
12.Chenopodium albumLambsquarters2001ALS inhibitors
13.Chenopodium strictum var. glaucophyllumLate Flowering Goosefoot2004Photosystem II inhibitors
14.Conyza canadensisHorseweed2002ALS inhibitors
16.Conyza canadensis
Multiple Resistance		Horseweed2002Photosystem II inhibitors
Ureas and amides
17.Conyza canadensisHorseweed2002Ureas and amides
18.Conyza canadensisHorseweed2007Glycines
19.Daucus carotaWild Carrot1993Synthetic Auxins
20.Kochia scopariaKochia2005ALS inhibitors
21.Polygonum persicariaLadysthumb2001Photosystem II inhibitors
23.Portulaca oleracea
Multiple Resistance		Common Purslane1991Photosystem II inhibitors
Ureas and amides
24.Senecio vulgarisCommon Groundsel1990Photosystem II inhibitors
25.Setaria faberiGiant Foxtail2006ALS inhibitors
26.Solanum ptycanthumEastern Black Nightshade2004Photosystem II inhibitors
Minnesota
1.Abutilon theophrastiVelvetleaf1991Photosystem II inhibitors
2.Amaranthus retroflexusRedroot Pigweed1991Photosystem II inhibitors
3.Amaranthus rudisCommon Waterhemp2007Glycines
4.Ambrosia artemisiifoliaCommon Ragweed1998ALS inhibitors
5.Ambrosia trifidaGiant Ragweed2006Glycines
6.Avena fatuaWild Oat1991ACCase inhibitors
7.Chenopodium albumLambsquarters1982Photosystem II inhibitors
8.Kochia scopariaKochia1994ALS inhibitors
9.Setaria faberiGiant Foxtail1996ALS inhibitors
10.Setaria lutescensYellow Foxtail (lutescens)1997ALS inhibitors
11.Setaria viridis var. robusta-alba SchreiberRobust White Foxtail1996ALS inhibitors
12.Setaria viridis var. robusta-alba SchreiberRobust White Foxtail1999ACCase inhibitors
13.Setaria viridis var. robusta-purpureaPurple Robust Foxtail1999ACCase inhibitors
14.Xanthium strumariumCommon cocklebur1994ALS inhibitors
Mississippi
2.Amaranthus palmeri
Multiple Resistance		Palmer Amaranth2008ALS inhibitors
Glycines
3.Conyza canadensisHorseweed1994Bipyridiliums
4.Conyza canadensisHorseweed2003Glycines
6.Conyza canadensis
Multiple Resistance		Horseweed2007Bipyridiliums
Glycines
7.Eleusine indicaGoosegrass1994Dinitroanilines and others
8.Lolium multiflorumItalian Ryegrass1995ALS inhibitors
9.Lolium multiflorumItalian Ryegrass2005Glycines
10.Poa annuaAnnual Bluegrass1996Photosystem II inhibitors
11.Sorghum halepenseJohnsongrass1991ACCase inhibitors
12.Sorghum halepenseJohnsongrass1992Dinitroanilines and others
13.Xanthium strumariumCommon cocklebur1989ALS inhibitors
14.Xanthium strumariumCommon cocklebur1994Organoarsenicals
Missouri
1.Amaranthus palmeriPalmer Amaranth2008Glycines
2.Amaranthus rudisCommon Waterhemp1994Photosystem II inhibitors
3.Amaranthus rudisCommon Waterhemp1994ALS inhibitors
6.Amaranthus rudis
Multiple Resistance		Common Waterhemp2005ALS inhibitors
PPO inhibitors
Glycines
7.Ambrosia artemisiifoliaCommon Ragweed2004Glycines
8.Ambrosia trifidaGiant Ragweed2009Glycines
9.Conyza canadensisHorseweed2002Glycines
10.Echinochloa crus-galliBarnyardgrass1994Ureas and amides
11.Helianthus annuusCommon Sunflower1996ALS inhibitors
12.Xanthium strumariumCommon cocklebur1992ALS inhibitors
Montana
2.Avena fatua
Multiple Resistance		Wild Oat1990Thiocarbamates and others
Unknown
3.Avena fatuaWild Oat1990ACCase inhibitors
4.Avena fatuaWild Oat1996ALS inhibitors
5.Avena fatuaWild Oat2002ACCase inhibitors
6.Kochia scopariaKochia1984Photosystem II inhibitors
7.Kochia scopariaKochia1989ALS inhibitors
8.Kochia scopariaKochia1995Synthetic Auxins
9.Lolium persicumPersian Darnell1993ACCase inhibitors
10.Salsola ibericaRussian Thistle1987ALS inhibitors
Nebraska
1.Amaranthus rudisCommon Waterhemp1996Photosystem II inhibitors
2.Sorghum bicolorShattercane1994ALS inhibitors
New Hampshire
1.Amaranthus retroflexusRedroot Pigweed1984Photosystem II inhibitors
2.Chenopodium albumLambsquarters1986Photosystem II inhibitors
New Jersey
1.Amaranthus hybridusSmooth Pigweed1980Photosystem II inhibitors
2.Amaranthus lividusLivid Amaranth1993ALS inhibitors
3.Conyza canadensisHorseweed2002Glycines
4.Digitaria ischaemumSmooth Crabgrass1996ACCase inhibitors
New Mexico
1.Amaranthus palmeriPalmer Amaranth2007Glycines
2.Kochia scopariaKochia1988ALS inhibitors
New York
1.Amaranthus hybridusSmooth Pigweed1980Photosystem II inhibitors
2.Amaranthus hybridusSmooth Pigweed1980Photosystem II inhibitors
3.Ambrosia artemisiifoliaCommon Ragweed1993Photosystem II inhibitors
4.Chenopodium albumLambsquarters1977Photosystem II inhibitors
5.Senecio vulgarisCommon Groundsel1991Photosystem II inhibitors
North Carolina
1.Amaranthus hybridusSmooth Pigweed1980Photosystem II inhibitors
2.Amaranthus palmeriPalmer Amaranth1995ALS inhibitors
3.Amaranthus palmeriPalmer Amaranth2005Glycines
4.Chenopodium albumLambsquarters1980Photosystem II inhibitors
5.Conyza canadensisHorseweed2003Glycines
6.Eleusine indicaGoosegrass1973Dinitroanilines and others
7.Lolium multiflorumItalian Ryegrass1990ACCase inhibitors
8.Poa annuaAnnual Bluegrass1995Photosystem II inhibitors
9.Poa annuaAnnual Bluegrass1997Dinitroanilines and others
10.Xanthium strumariumCommon cocklebur1994Organoarsenicals
North Dakota
1.Amaranthus retroflexusRedroot Pigweed1999ALS inhibitors
2.Avena fatuaWild Oat1991ACCase inhibitors
3.Avena fatuaWild Oat1996ALS inhibitors
4.Iva xanthifoliaMarshelder2003ALS inhibitors
5.Kochia scopariaKochia1987ALS inhibitors
6.Kochia scopariaKochia1995Synthetic Auxins
7.Kochia scopariaKochia1998Photosystem II inhibitors
8.Setaria viridisGreen Foxtail1989Dinitroanilines and others
9.Sinapis arvensisWild Mustard1999ALS inhibitors
10.Solanum ptycanthumEastern Black Nightshade1999ALS inhibitors
Ohio
1.Amaranthus hybridusSmooth Pigweed2001ALS inhibitors
2.Amaranthus powelliiPowell Amaranth1996ALS inhibitors
3.Amaranthus rudisCommon Waterhemp1996ALS inhibitors
4.Ambrosia artemisiifoliaCommon Ragweed1998ALS inhibitors
6.Ambrosia artemisiifolia
Multiple Resistance		Common Ragweed2006ALS inhibitors
Glycines
8.Ambrosia artemisiifolia
Multiple Resistance		Common Ragweed2006ALS inhibitors
PPO inhibitors
9.Ambrosia trifidaGiant Ragweed1998ALS inhibitors
10.Ambrosia trifidaGiant Ragweed2004Glycines
12.Ambrosia trifida
Multiple Resistance		Giant Ragweed2006ALS inhibitors
Glycines
13.Chenopodium albumLambsquarters1981Photosystem II inhibitors
14.Chenopodium albumLambsquarters2001ALS inhibitors
15.Conyza canadensisHorseweed2002Glycines
16.Conyza canadensisHorseweed2001ALS inhibitors
18.Conyza canadensis
Multiple Resistance		Horseweed2003ALS inhibitors
Glycines
19.Daucus carotaWild Carrot1994Synthetic Auxins
20.Sorghum bicolorShattercane2000ALS inhibitors
21.Xanthium strumariumCommon cocklebur1999ALS inhibitors
Oklahoma
1.Amaranthus rudisCommon Waterhemp2002ALS inhibitors
2.Kochia scopariaKochia1992ALS inhibitors
3.Xanthium strumariumCommon cocklebur1996ALS inhibitors
Oregon
1.Amaranthus retroflexusRedroot Pigweed1994Photosystem II inhibitors
2.Avena fatuaWild Oat1990ACCase inhibitors
3.Avena fatuaWild Oat1990Dinitroanilines and others
4.Bromus tectorumDowny Brome1997ALS inhibitors
5.Bromus tectorumDowny Brome2005ACCase inhibitors
6.Camelina microcarpaSmallseed falseflax1999ALS inhibitors
7.Capsella bursa-pastorisShepherd's-purse2007Photosystem II inhibitors
8.Kochia scopariaKochia1993ALS inhibitors
9.Lactuca serriolaPrickly Lettuce1993ALS inhibitors
10.Lolium multiflorumItalian Ryegrass1987ACCase inhibitors
11.Lolium multiflorumItalian Ryegrass2004Glycines
12.Poa annuaAnnual Bluegrass1994Thiocarbamates and others
13.Poa annuaAnnual Bluegrass1994Ureas and amides
14.Poa annuaAnnual Bluegrass1994Photosystem II inhibitors
15.Salsola ibericaRussian Thistle1993ALS inhibitors
16.Senecio vulgarisCommon Groundsel1995Nitriles and others
Pennsylvania
1.Amaranthus hybridusSmooth Pigweed1980Photosystem II inhibitors
3.Amaranthus retroflexus
Multiple Resistance		Redroot Pigweed1998ALS inhibitors
Photosystem II inhibitors
4.Chenopodium albumLambsquarters1980Photosystem II inhibitors
5.Conyza canadensisHorseweed2003Glycines
6.Setaria faberiGiant Foxtail2004ALS inhibitors
7.Sorghum bicolorShattercane2001ALS inhibitors
Rhode Island
1.Chenopodium albumLambsquarters1995Photosystem II inhibitors
South Carolina
1.Amaranthus palmeriPalmer Amaranth1989Dinitroanilines and others
2.Amaranthus palmeriPalmer Amaranth1997ALS inhibitors
3.Eleusine indicaGoosegrass1974Dinitroanilines and others
4.Lolium multiflorumItalian Ryegrass1990ACCase inhibitors
5.Xanthium strumariumCommon cocklebur1985Organoarsenicals
South Dakota
1.Helianthus annuusCommon Sunflower1996ALS inhibitors
2.Kochia scopariaKochia1988ALS inhibitors
Tennessee
1.Amaranthus palmeriPalmer Amaranth2006ALS inhibitors
2.Amaranthus palmeriPalmer Amaranth2006Glycines
3.Amaranthus palmeriPalmer Amaranth2006Glycines
4.Amaranthus rudisCommon Waterhemp2007ALS inhibitors
5.Ambrosia trifidaGiant Ragweed2007Glycines
6.Chenopodium albumLambsquarters1998Photosystem II inhibitors
7.Conyza canadensisHorseweed2001Glycines
8.Eleusine indicaGoosegrass1988Dinitroanilines and others
9.Lolium multiflorumItalian Ryegrass2006ACCase inhibitors
10.Sorghum halepenseJohnsongrass1995ACCase inhibitors
11.Xanthium strumariumCommon cocklebur1991Organoarsenicals
12.Xanthium strumariumCommon cocklebur1992ALS inhibitors
Texas
1.Amaranthus palmeriPalmer Amaranth1993Photosystem II inhibitors
2.Amaranthus palmeriPalmer Amaranth1995Photosystem II inhibitors
3.Amaranthus palmeriPalmer Amaranth1995Photosystem II inhibitors
4.Echinochloa crus-galliBarnyardgrass1991Ureas and amides
5.Kochia scopariaKochia1998ALS inhibitors
6.Lolium perennePerennial Ryegrass1989ALS inhibitors
7.Sorghum halepenseJohnsongrass2000ALS inhibitors
Utah
1.Kochia scopariaKochia1998ALS inhibitors
Vermont
1.Amaranthus retroflexusRedroot Pigweed1991Photosystem II inhibitors
2.Chenopodium albumLambsquarters1991Photosystem II inhibitors
Virginia
1.Amaranthus hybridusSmooth Pigweed1976Photosystem II inhibitors
2.Amaranthus hybridusSmooth Pigweed1994ALS inhibitors
3.Amaranthus retroflexusRedroot Pigweed1993Photosystem II inhibitors
4.Chenopodium albumLambsquarters1979Photosystem II inhibitors
5.Lolium multiflorumItalian Ryegrass1993ACCase inhibitors
6.Poa annuaAnnual Bluegrass2001Photosystem II inhibitors
7.Sorghum bicolorShattercane2003ALS inhibitors
8.Sorghum halepenseJohnsongrass1995ACCase inhibitors
9.Stellaria mediaCommon Chickweed2008ALS inhibitors
Washington
1.Amaranthus powelliiPowell Amaranth1992Photosystem II inhibitors
2.Avena fatuaWild Oat1991ACCase inhibitors
3.Centaurea solstitialisYellow Starthistle1988Synthetic Auxins
4.Kochia scopariaKochia1989ALS inhibitors
5.Lactuca serriolaPrickly Lettuce1993ALS inhibitors
6.Lactuca serriolaPrickly Lettuce2007Synthetic Auxins
7.Salsola ibericaRussian Thistle1987ALS inhibitors
8.Senecio vulgarisCommon Groundsel1970Photosystem II inhibitors
9.Sonchus asperSpiny Sowthistle2000ALS inhibitors
Wisconsin
1.Abutilon theophrastiVelvetleaf1990Photosystem II inhibitors
2.Amaranthus hybridusSmooth Pigweed1985Photosystem II inhibitors
3.Amaranthus rudisCommon Waterhemp1999ALS inhibitors
4.Chenopodium albumLambsquarters1979Photosystem II inhibitors
5.Digitaria sanguinalisLarge Crabgrass1992ACCase inhibitors
6.Kochia scopariaKochia1987Photosystem II inhibitors
7.Kochia scopariaKochia1995ALS inhibitors
8.Setaria faberiGiant Foxtail1991ACCase inhibitors
9.Setaria faberiGiant Foxtail1999ALS inhibitors
10.Setaria viridisGreen Foxtail1999ALS inhibitors
11.Solanum ptycanthumEastern Black Nightshade1999ALS inhibitors
Wyoming
1.Kochia scopariaKochia1996ALS inhibitors
2.Kochia scopariaKochia1984Photosystem II inhibitors
 

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