INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Herbicide Resistant Wild Oat Globally
(Avena fatua)
Herbicide Resistant Wild Oat Globally
(Avena fatua)
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Herbicide Resistant Wild Oat Globally
(Avena fatua)
#CountryFirstYearSituationActive IngredientsSite of Action
1 ArgentinaArgentina 2010 Spring Barley, and Wheat clodinafop-propargyl, diclofop-methyl, and fenoxaprop-ethyl 48 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5587
2 Australia (Western Australia) AustraliaWestern Australia1985 Wheat diclofop-methyl 1 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat14
3 Australia (South Australia) AustraliaSouth Australia1988 Canola, Lupins, and Wheat diclofop-methyl, fluazifop-butyl, haloxyfop-methyl, and tralkoxydim 1 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat20
4 Australia (New South Wales ) AustraliaNew South Wales 1991 Canola, Chickpea, Faba beans, Lentils, Lupins, Spring Barley, and Wheat clethodim, clodinafop-propargyl, diclofop-methyl, and fenoxaprop-ethyl 1 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5
5 Australia (New South Wales ) AustraliaNew South Wales 2006 Chickpea, Spring Barley, and Wheat clodinafop-propargyl, diclofop-methyl, flamprop-methyl, and mesosulfuron-methyl 1 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Antimicrotubule mitotic disrupterHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat10966
6 Australia (Queensland) AustraliaQueensland2018 Chickpea glyphosate 1 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
 		28Avena fatuaWild Oat18187
7 BelgiumBelgium 1996 Winter wheat clodinafop-propargyl, and fenoxaprop-ethyl 3 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat1146
8 BrazilBrazil 2010 Wheat clodinafop-propargyl 5 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5601
9 Canada (Alberta) CanadaAlberta1989 Cereals, and Spring Barley difenzoquat, and tri-allate 7 Multiple Resistance: 2 Sites of Action
Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
Cell elongation inhibitorsHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat66
10 Canada (Manitoba) CanadaManitoba1990 Canola, Cropland, Spring Barley, and Wheat clethodim, clodinafop-propargyl, diclofop-methyl, fenoxaprop-ethyl, sethoxydim, and tralkoxydim 7 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat50
11 Canada (Saskatchewan) CanadaSaskatchewan1990 Canola, Spring Barley, and Wheat fenoxaprop-ethyl, and sethoxydim 7 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5041
12 Canada (Alberta) CanadaAlberta1991 Canola, and Wheat diclofop-methyl, fenoxaprop-ethyl, quizalofop-ethyl, and tralkoxydim 7 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat67
13 Canada (Manitoba) CanadaManitoba1994 Canola, Cropland, Spring Barley, and Wheat fenoxaprop-ethyl, flamprop-methyl, imazamethabenz-methyl, and rimsulfuron 7 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Antimicrotubule mitotic disrupterHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat51
14 Canada (Saskatchewan) CanadaSaskatchewan1996 Cereals, and Cropland imazamethabenz-methyl 7 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat5072
15 Canada (Saskatchewan) CanadaSaskatchewan1996 Wheat tri-allate 7 Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
 		28Avena fatuaWild Oat5073
16 Canada (Saskatchewan) CanadaSaskatchewan1996 Canola, Lentils, Spring Barley, and Wheat fenoxaprop-ethyl, imazamethabenz-methyl, and tri-allate 7 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
 		28Avena fatuaWild Oat5074
17 Canada (Manitoba) CanadaManitoba1997 Wheat imazamethabenz-methyl 7 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat5077
18 Canada (Manitoba) CanadaManitoba1997 Wheat tri-allate 7 Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
 		28Avena fatuaWild Oat5078
19 Canada (Manitoba) CanadaManitoba1997 Wheat fenoxaprop-ethyl, flamprop-methyl, imazamethabenz-methyl, and tri-allate 7 Multiple Resistance: 4 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
Antimicrotubule mitotic disrupterHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat5079
20 Canada (Alberta) CanadaAlberta1998 Canola, Cereals, and Peas imazamethabenz-methyl 7 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat5075
21 Canada (Alberta) CanadaAlberta1998 Canola, Cereals, Peas, and Wheat fenoxaprop-ethyl, imazamethabenz-methyl, and tri-allate 7 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
 		28Avena fatuaWild Oat5076
22 Canada (Quebec) CanadaQuebec2012 Wheat, and Winter barley fenoxaprop-ethyl, and tralkoxydim 7 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat17129
23 Canada (Manitoba) CanadaManitoba2015 Spring wheat fenoxaprop-ethyl, imazamethabenz-methyl, imazapyr, pyroxasulfone, quizalofop-ethyl, sulfentrazone, and tri-allate 7 Multiple Resistance: 4 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Protoporphyrinogen Oxidase HRAC Group 14 (Legacy E)
Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
 		28Avena fatuaWild Oat11033
24 ChileChile 1998 Wheat clodinafop-propargyl, diclofop-methyl, haloxyfop-methyl, and tralkoxydim 8 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5103
25 FranceFrance 1996 Wheat fenoxaprop-ethyl 17 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat548
26 FranceFrance 2006 Wheat iodosulfuron-methyl-Na, mesosulfuron-methyl, metsulfuron-methyl, and pyroxsulam 17 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat9938
27 GermanyGermany 2009 Sugar beets cycloxydim, fenoxaprop-ethyl, flupyrsulfuron-methyl-Na, mesosulfuron-methyl, and pinoxaden 18 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat6745
28 GermanyGermany 2012 Sugar beets clodinafop-propargyl, fenoxaprop-ethyl, and pinoxaden 18 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5662
29 IranIran 2007 Wheat clodinafop-propargyl, and diclofop-methyl 79 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5341
30 IrelandIreland 2019 Spring Barley, and Winter barley cycloxydim, pinoxaden, and propaquizafop 81 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat18200
31 MexicoMexico 1998 Wheat clodinafop-propargyl, cycloxydim, diclofop-methyl, fenoxaprop-ethyl, fluazifop-butyl, sethoxydim, and tralkoxydim 29 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5476
32 New ZealandNew Zealand 2014 Clover, and Wheat fenoxaprop-ethyl, and haloxyfop-methyl 30 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat14054
33 PakistanPakistan 2024 Wheat fenoxaprop-ethyl 86 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat29281
34 PolandPoland 2004 Spring Barley, and Spring wheat diclofop-methyl, fenoxaprop-ethyl, and pinoxaden 33 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat6761
35 PolandPoland 2011 Spring Barley, and Spring wheat iodosulfuron-methyl-Na, mesosulfuron-methyl, propoxycarbazone-Na, and sulfometuron-methyl 33 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat6762
36 PolandPoland 2011 Spring Barley, and Spring wheat fenoxaprop-ethyl, iodosulfuron-methyl-Na, metsulfuron-methyl, pinoxaden, propoxycarbazone-Na, and sulfometuron-methyl 33 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat6763
37 South AfricaSouth Africa 1986 Wheat clodinafop-propargyl, diclofop-methyl, fenoxaprop-ethyl, fluazifop-butyl, imazamox, iodosulfuron-methyl-Na, sethoxydim, sulfosulfuron, and tralkoxydim 37 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat392
38 SyriaSyria 2015 Faba beans, Potatoes, and Wheat clodinafop-propargyl, and fenoxaprop-ethyl 69 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat15060
39 TurkeyTurkey 2011 Wheat diclofop-methyl, fenoxaprop-ethyl, and tralkoxydim 71 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5641
40 United KingdomUnited Kingdom 1994 Canola, Cereals, and Wheat fenoxaprop-ethyl, flamprop-m, fluazifop-butyl, imazamethabenz-methyl, mesosulfuron-methyl, pinoxaden, pyroxsulam, and tralkoxydim 44 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Antimicrotubule mitotic disrupterHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat355
41 United States (Oregon) United StatesOregon1990 Wheat diclofop-methyl, and fenoxaprop-ethyl 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat319
42 United States (Montana) United StatesMontana1990 Spring Barley difenzoquat, and tri-allate 45 Multiple Resistance: 2 Sites of Action
Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
Cell elongation inhibitorsHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat412
43 United States (Oregon) United StatesOregon1990 Cropland propyzamide/pronamide 45 Inhibition of Microtubule AssemblyHRAC Group 3 (Legacy K1)
 		28Avena fatuaWild Oat475
44 United States (Minnesota) United StatesMinnesota1991 Sugar beets, and Wheat diclofop-methyl 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat247
45 United States (North Dakota) United StatesNorth Dakota1991 Cereals, and Wheat diclofop-methyl, and fenoxaprop-ethyl 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat485
46 United States (Washington) United StatesWashington1991 Wheat diclofop-methyl, fenoxaprop-ethyl, pinoxaden, quizalofop-ethyl, and sethoxydim 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat521
47 United States (Idaho) United StatesIdaho1992 Cereals, and Wheat clodinafop-propargyl, diclofop-methyl, and fenoxaprop-ethyl 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat235
48 United States (Idaho) United StatesIdaho1993 Cereals difenzoquat, and tri-allate 45 Multiple Resistance: 2 Sites of Action
Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 15 (Legacy K3 N)
Cell elongation inhibitorsHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat234
49 United States (Montana) United StatesMontana1996 Cereals imazamethabenz-methyl 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat558
50 United States (North Dakota) United StatesNorth Dakota1996 Wheat imazamethabenz-methyl 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat1048
51 United States (California) United StatesCalifornia1996 Spring Barley, and Wheat difenzoquat 45 Cell elongation inhibitorsHRAC Group 0 (Legacy Z)
 		28Avena fatuaWild Oat1176
52 United States (Colorado) United StatesColorado1997 Spring Barley, and Wheat diclofop-methyl 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat1052
53 United States (Montana) United StatesMontana2002 Cropland, Sugar beets, and Wheat clodinafop-propargyl, diclofop-methyl, fenoxaprop-ethyl, and tralkoxydim 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5246
54 United States (South Dakota) United StatesSouth Dakota2009 Cereals fenoxaprop-ethyl 45 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		28Avena fatuaWild Oat5637
55 United States (South Dakota) United StatesSouth Dakota2011 Cereals mesosulfuron-methyl 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat5638
56 United States (South Dakota) United StatesSouth Dakota2012 Wheat fenoxaprop-ethyl, and mesosulfuron-methyl 45 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		28Avena fatuaWild Oat5663
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