International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Pale Smartweed Globally
(Polygonum lapathifolium)
Herbicide Resistant Pale Smartweed Globally
(Polygonum lapathifolium)
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Herbicide Resistant Pale Smartweed Globally
(Polygonum lapathifolium)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Canada (Manitoba) CanadaManitoba2009 Wheat thifensulfuron-methyl, and tribenuron-methyl 7 ALS inhibitors (B/2)
134Polygonum lapathifoliumPale Smartweed5625
2 Canada (Alberta) CanadaAlberta2014 Wheat imazethapyr 7 ALS inhibitors (B/2)
134Polygonum lapathifoliumPale Smartweed11002
3 Czech RepublicCzech Republic 1982 Railways atrazine, cyanazine, lenacil, prometryn, terbuthylazine, and terbutryn 12 Photosystem II inhibitors (C1/5)
134Polygonum lapathifoliumPale Smartweed80
4 FranceFrance 1979 Corn (maize), and Cropland atrazine 17 Photosystem II inhibitors (C1/5)
134Polygonum lapathifoliumPale Smartweed466
5 GermanyGermany 1988 Corn (maize) atrazine 18 Photosystem II inhibitors (C1/5)
134Polygonum lapathifoliumPale Smartweed445
6 SpainSpain 1991 Corn (maize) atrazine 38 Photosystem II inhibitors (C1/5)
134Polygonum lapathifoliumPale Smartweed189
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Monday, May 29, 2017 .  Available  www.weedscience.org
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