International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Silky Windgrass Globally
(Apera spica-venti)
Herbicide Resistant Silky Windgrass Globally
(Apera spica-venti)
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Herbicide Resistant Silky Windgrass Globally
(Apera spica-venti)
#CountryFirstYearSituationActive IngredientsSite of Action
1 AustriaAustria 2009 Cereals iodosulfuron-methyl-sodium, and isoproturon 2 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
20Apera spica-ventiSilky Windgrass6746
2 Czech RepublicCzech Republic 2005 Cereals, and Winter wheat chlorsulfuron, iodosulfuron-methyl-sodium, isoproturon, mesosulfuron-methyl, pyroxsulam, and sulfosulfuron 12 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
20Apera spica-ventiSilky Windgrass5266
3 DenmarkDenmark 2011 Winter wheat iodosulfuron-methyl-sodium, and sulfosulfuron 13 ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass5674
4 DenmarkDenmark 2016 Wheat fenoxaprop-P-ethyl, florasulam, iodosulfuron-methyl-sodium, mesosulfuron-methyl, and pinoxaden 13 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass15078
5 FranceFrance 2006 Wheat iodosulfuron-methyl-sodium, mesosulfuron-methyl, and pyroxsulam 17 ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass9936
6 GermanyGermany 1997 Cereals, and Winter wheat isoproturon 18 PSII inhibitor (Ureas and amides) (C2/7)
20Apera spica-ventiSilky Windgrass5026
7 GermanyGermany 2005 Wheat chlorsulfuron, florasulam, flupyrsulfuron-methyl-sodium, iodosulfuron-methyl-sodium, mesosulfuron-methyl, pyroxsulam, sulfometuron-methyl, and sulfosulfuron 18 ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass5526
8 GermanyGermany 2009 Spring Barley, and Winter wheat fenoxaprop-P-ethyl, iodosulfuron-methyl-sodium, isoproturon, mesosulfuron-methyl, pinoxaden, pyroxsulam, and sulfosulfuron 18 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
20Apera spica-ventiSilky Windgrass5410
9 LatviaLatvia 2015 Wheat, and Winter wheat iodosulfuron-methyl-sodium 174 ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass15067
10 LithuaniaLithuania 2013 Winter wheat iodosulfuron-methyl-sodium 185 ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass7821
11 PolandPoland 2005 Winter wheat chlorsulfuron, iodosulfuron-methyl-sodium, procarbazone-sodium, and sulfosulfuron 33 ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass5395
12 PolandPoland 2010 Winter wheat fenoxaprop-P-ethyl, and pinoxaden 33 ACCase inhibitors (A/1)
20Apera spica-ventiSilky Windgrass5619
13 PolandPoland 2011 Winter wheat chlorsulfuron, fenoxaprop-P-ethyl, pinoxaden, sulfometuron-methyl, and sulfosulfuron 33 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass6758
14 PolandPoland 2012 Winter wheat isoproturon 33 PSII inhibitor (Ureas and amides) (C2/7)
20Apera spica-ventiSilky Windgrass6759
15 SwedenSweden 2006 Winter wheat isoproturon 40 PSII inhibitor (Ureas and amides) (C2/7)
20Apera spica-ventiSilky Windgrass10996
16 SwedenSweden 2010 Winter wheat iodosulfuron-methyl-sodium, and sulfosulfuron 40 ALS inhibitors (B/2)
20Apera spica-ventiSilky Windgrass10994
17 SwitzerlandSwitzerland 1994 Wheat isoproturon 41 PSII inhibitor (Ureas and amides) (C2/7)
20Apera spica-ventiSilky Windgrass208
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Sunday, November 19, 2017 .  Available  www.weedscience.org
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