INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
select
select
Herbicide Resistant Prickly Lettuce Globally
(Lactuca serriola)
Herbicide Resistant Prickly Lettuce Globally
(Lactuca serriola)
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Herbicide Resistant Prickly Lettuce Globally
(Lactuca serriola)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Australia (South Australia) AustraliaSouth Australia1994 Canola, Roadsides, Spring Barley, and Wheat chlorsulfuron, flumetsulam, metosulam, metsulfuron-methyl, and triasulfuron 1 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
102Lactuca serriolaPrickly Lettuce26
2 Australia (Victoria) AustraliaVictoria2009 Spring Barley, and Wheat chlorsulfuron, and metsulfuron-methyl 1 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
102Lactuca serriolaPrickly Lettuce5516
3 Australia (Victoria) AustraliaVictoria2015 Fallow glyphosate 1 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
102Lactuca serriolaPrickly Lettuce11022
4 United States (Idaho) United StatesIdaho1987 Canola, Cereals, Chickpea, Lentils, Peas, and Wheat chlorsulfuron, imazethapyr, metsulfuron-methyl, thifensulfuron-methyl, triasulfuron, and tribenuron-methyl 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
102Lactuca serriolaPrickly Lettuce230
5 United States (Washington) United StatesWashington1993 Cereals, and Wheat chlorsulfuron 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
102Lactuca serriolaPrickly Lettuce518
6 United States (Oregon) United StatesOregon1993 Wheat chlorsulfuron, metsulfuron-methyl, and triasulfuron 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
102Lactuca serriolaPrickly Lettuce1174
7 United States (Washington) United StatesWashington2007 Cereals 2,4-D, dicamba, and MCPA 45 Auxin Mimics HRAC Group 4 (Legacy O)
102Lactuca serriolaPrickly Lettuce5328

HRAC Global Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Thursday, September 24, 2026.  Available at  www.weedscience.org

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