International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Blackgrass Globally
(Alopecurus myosuroides)
Herbicide Resistant Blackgrass Globally
(Alopecurus myosuroides)
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Herbicide Resistant Blackgrass Globally
(Alopecurus myosuroides)
#CountryFirstYearSituationActive IngredientsSite of Action
1 BelgiumBelgium 1996 Winter wheat clodinafop-propargyl, and fenoxaprop-P-ethyl 3 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass501
2 BelgiumBelgium 1996 Wheat isoproturon 3 PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass502
3 BelgiumBelgium 1996 Winter wheat atrazine, chlorotoluron, clodinafop-propargyl, fenoxaprop-P-ethyl, flupyrsulfuron-methyl-sodium, pendimethalin, and propaquizafop 3 Multiple Resistance: 5 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
Photosystem II inhibitors (C1/5)
PSII inhibitor (Ureas and amides) (C2/7)
Microtubule inhibitors (K1/3)
6Alopecurus myosuroidesBlackgrass5043
4 Czech RepublicCzech Republic 2008 Wheat chlorsulfuron 12 ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass7871
5 DenmarkDenmark 2001 Winter wheat fenoxaprop-P-ethyl 13 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass5347
6 DenmarkDenmark 2001 Winter wheat clodinafop-propargyl, fenoxaprop-P-ethyl, and flupyrsulfuron-methyl-sodium 13 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass5675
7 FranceFrance 1993 Wheat clodinafop-propargyl, cycloxydim, diclofop-methyl, fenoxaprop-P-ethyl, haloxyfop-P-methyl, and sethoxydim 17 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass546
8 FranceFrance 2006 Wheat imazamethabenz-methyl, iodosulfuron-methyl-sodium, and mesosulfuron-methyl 17 ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass5329
9 GermanyGermany 1983 Sugar beets, and Wheat chlorotoluron, fenoxaprop-P-ethyl, and isoproturon 18 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass369
10 GermanyGermany 2001 Wheat flupyrsulfuron-methyl-sodium 18 ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass5154
11 GermanyGermany 2003 Sugar beets, and Winter wheat clethodim, cycloxydim, fenoxaprop-P-ethyl, and fluazifop-P-butyl 18 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass5237
12 GermanyGermany 2007 Wheat chlorotoluron, fenoxaprop-P-ethyl, flufenacet, isoproturon, mesosulfuron-methyl, and pinoxaden 18 Multiple Resistance: 4 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
Long chain fatty acid inhibitors (K3/15)
6Alopecurus myosuroidesBlackgrass5361
13 GermanyGermany 2009 Cereals cycloxydim, fenoxaprop-P-ethyl, flupyrsulfuron-methyl-sodium, mesosulfuron-methyl, and pinoxaden 18 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass5536
14 IsraelIsrael 1979 Roadsides methabenzthiazuron 23 PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass94
15 ItalyItaly 2009 Durum wheat clodinafop-propargyl, fenoxaprop-P-ethyl, and pinoxaden 24 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass5681
16 NetherlandsNetherlands 1989 Wheat chlorotoluron 43 PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass221
17 NetherlandsNetherlands 1996 Winter wheat chlorotoluron, clodinafop-propargyl, fenoxaprop-P-ethyl, and isoproturon 43 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass5082
18 NetherlandsNetherlands 1999 Winter wheat clodinafop-propargyl, cycloxydim, fenoxaprop-P-ethyl, and penoxsulam 43 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass5083
19 NetherlandsNetherlands 2010 Winter wheat florasulam, iodosulfuron-methyl-sodium, mesosulfuron-methyl, and pyroxsulam 43 ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass10978
20 PolandPoland 2010 Winter wheat iodosulfuron-methyl-sodium, and mesosulfuron-methyl 33 ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass5620
21 PolandPoland 2011 Winter wheat fenoxaprop-P-ethyl, and pinoxaden 33 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass6760
22 PolandPoland 2012 Winter wheat fenoxaprop-P-ethyl, iodosulfuron-methyl-sodium, mesosulfuron-methyl, pinoxaden, and sulfometuron-methyl 33 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass10969
23 SpainSpain 1991 Wheat chlorotoluron 38 PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass188
24 SpainSpain 2015 Canola, Faba beans, Peas, Wheat, and Winter barley chlorotoluron, clodinafop-propargyl, cloransulam-methyl, iodosulfuron-methyl-sodium, isoproturon, mesosulfuron-methyl, and pinoxaden 38 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass11014
25 SwedenSweden 2011 Winter wheat clodinafop-propargyl, cycloxydim, and fenoxaprop-P-ethyl 40 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass8911
26 SwedenSweden 2011 Wheat fenoxaprop-P-ethyl, flupyrsulfuron-methyl-sodium, prosulfocarb, and pyroxsulam 40 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
Lipid Inhibitors (N/8)
6Alopecurus myosuroidesBlackgrass8912
27 SwedenSweden 2014 Spring wheat, Winter barley, and Winter wheat cycloxydim, fenoxaprop-P-ethyl, flupyrsulfuron-methyl-sodium, iodosulfuron-methyl-sodium, mesosulfuron-methyl, and pyroxsulam 40 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass10995
28 SwitzerlandSwitzerland 1997 Wheat isoproturon 41 PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass1132
29 TurkeyTurkey 2001 Wheat clodinafop-propargyl 71 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass5116
30 TurkeyTurkey 2008 clodinafop-propargyl, and pyroxsulam 71 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass5403
31 United KingdomUnited Kingdom 1982 Canola, Cereals, and Wheat clethodim, clodinafop-propargyl, cycloxydim, diclofop-methyl, fenoxaprop-P-ethyl, fluazifop-P-butyl, pinoxaden, quizalofop-P-ethyl, and sethoxydim 44 ACCase inhibitors (A/1)
6Alopecurus myosuroidesBlackgrass357
32 United KingdomUnited Kingdom 1982 Cereals chlorotoluron, and isoproturon 44 PSII inhibitor (Ureas and amides) (C2/7)
6Alopecurus myosuroidesBlackgrass507
33 United KingdomUnited Kingdom 1984 Wheat chlorsulfuron, flupyrsulfuron-methyl-sodium, imazamethabenz-methyl, iodosulfuron-methyl-sodium, mesosulfuron-methyl, propoxycarbazone-sodium, and pyroxsulam 44 ALS inhibitors (B/2)
6Alopecurus myosuroidesBlackgrass323
34 United KingdomUnited Kingdom 1987 Wheat pendimethalin 44 Microtubule inhibitors (K1/3)
6Alopecurus myosuroidesBlackgrass329
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Monday, April 24, 2017 .  Available  www.weedscience.org
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