INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Herbicide Resistant Common Hempnettle Globally
(Galeopsis tetrahit)
Herbicide Resistant Common Hempnettle Globally
(Galeopsis tetrahit)
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Herbicide Resistant Common Hempnettle Globally
(Galeopsis tetrahit)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Canada (Manitoba) CanadaManitoba1995 Cereals, and Wheat metsulfuron-methyl 7 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		91Galeopsis tetrahitCommon Hempnettle476
2 Canada (Alberta) CanadaAlberta1998 Cereals, Cropland, Spring Barley, and Wheat dicamba, fluroxypyr, and MCPA 7 Auxin Mimics HRAC Group 4 (Legacy O)
 		91Galeopsis tetrahitCommon Hempnettle1154
3 Canada (Alberta) CanadaAlberta2006 Cereals thifensulfuron-methyl, and tribenuron-methyl 7 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		91Galeopsis tetrahitCommon Hempnettle5320
HRAC Global Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Sunday, October 18, 2026.  Available at  www.weedscience.org

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