INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Herbicide Resistant Spiny Amaranth Globally
(Amaranthus spinosus)
Herbicide Resistant Spiny Amaranth Globally
(Amaranthus spinosus)
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Herbicide Resistant Spiny Amaranth Globally
(Amaranthus spinosus)
#CountryFirstYearSituationActive IngredientsSite of Action
1 United States (Mississippi) United StatesMississippi2012 Cotton glyphosate 45 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
 		278Amaranthus spinosusSpiny Amaranth5682
2 United States (Mississippi) United StatesMississippi2013 Cotton, and Soybean imazethapyr, nicosulfuron, pyrithiobac-sodium, and trifloxysulfuron-Na 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		278Amaranthus spinosusSpiny Amaranth16081
HRAC Global Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Friday, October 9, 2026.  Available at  www.weedscience.org

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