INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Herbicide Resistant Green Foxtail Globally
(Setaria viridis)
Herbicide Resistant Green Foxtail Globally
(Setaria viridis)
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Herbicide Resistant Green Foxtail Globally
(Setaria viridis)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Canada (Manitoba) CanadaManitoba1988 Canola, Cropland, Spring Barley, and Wheat ethalfluralin, and trifluralin 7 Inhibition of Microtubule AssemblyHRAC Group 3 (Legacy K1)
 		153Setaria viridisGreen Foxtail52
2 Canada (Alberta) CanadaAlberta1989 Canola, Peas, Spring Barley, and Wheat ethalfluralin, and trifluralin 7 Inhibition of Microtubule AssemblyHRAC Group 3 (Legacy K1)
 		153Setaria viridisGreen Foxtail5071
3 Canada (Manitoba) CanadaManitoba1991 Canola, Cropland, Spring Barley, and Wheat diclofop-methyl, fenoxaprop-ethyl, sethoxydim, and tralkoxydim 7 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		153Setaria viridisGreen Foxtail53
4 Canada (Saskatchewan) CanadaSaskatchewan1991 Canola, Flax, Spring Barley, and Wheat ethalfluralin, and trifluralin 7 Inhibition of Microtubule AssemblyHRAC Group 3 (Legacy K1)
 		153Setaria viridisGreen Foxtail5040
5 Canada (Manitoba) CanadaManitoba1992 Canola, Flax, Spring Barley, and Wheat diclofop-methyl, ethalfluralin, fenoxaprop-ethyl, sethoxydim, tralkoxydim, and trifluralin 7 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Microtubule AssemblyHRAC Group 3 (Legacy K1)
 		153Setaria viridisGreen Foxtail5037
6 Canada (Saskatchewan) CanadaSaskatchewan1996 Canola, Cropland, Spring Barley, and Wheat fenoxaprop-ethyl, and sethoxydim 7 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		153Setaria viridisGreen Foxtail5038
7 Canada (Alberta) CanadaAlberta1996 Wheat diclofop-methyl, fenoxaprop-ethyl, and sethoxydim 7 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		153Setaria viridisGreen Foxtail5039
8 Canada (Saskatchewan) CanadaSaskatchewan1996 Canola, Peas, Spring Barley, and Wheat fenoxaprop-ethyl, and trifluralin 7 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Microtubule AssemblyHRAC Group 3 (Legacy K1)
 		153Setaria viridisGreen Foxtail5070
9 Canada (Ontario) CanadaOntario2001 Corn (maize), and Soybean flucarbazone-Na, imazethapyr, nicosulfuron, and pyrithiobac-sodium 7 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		153Setaria viridisGreen Foxtail5124
10 Canada (Manitoba) CanadaManitoba2002 Wheat imazethapyr, and sulfosulfuron 7 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		153Setaria viridisGreen Foxtail5221
11 FranceFrance 1982 Corn (maize) atrazine 17 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
 		153Setaria viridisGreen Foxtail470
12 FranceFrance 2011 Corn (maize) foramsulfuron, and nicosulfuron 17 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		153Setaria viridisGreen Foxtail9933
13 SpainSpain 1987 Corn (maize) atrazine 38 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
 		153Setaria viridisGreen Foxtail178
14 UkraineUkraine 2024 Corn (maize) imazamox, imazapyr, nicosulfuron, and rimsulfuron 230 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		153Setaria viridisGreen Foxtail29269
15 United States (North Dakota) United StatesNorth Dakota1989 Sunflower, and Wheat trifluralin 45 Inhibition of Microtubule AssemblyHRAC Group 3 (Legacy K1)
 		153Setaria viridisGreen Foxtail493
16 United States (Wisconsin) United StatesWisconsin1999 Corn (maize), and Soybean imazamox 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		153Setaria viridisGreen Foxtail1172
17 United States (Montana) United StatesMontana2005 Canola, Peas, Spring Barley, and Wheat diclofop-methyl, fenoxaprop-ethyl, fluazifop-butyl, pinoxaden, and sethoxydim 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		153Setaria viridisGreen Foxtail7804
HRAC Global Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Sunday, October 4, 2026.  Available at  www.weedscience.org

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