INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Herbicide Resistant Ripgut Brome Globally
(Bromus diandrus)
Herbicide Resistant Ripgut Brome Globally
(Bromus diandrus)
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Herbicide Resistant Ripgut Brome Globally
(Bromus diandrus)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Australia (Victoria) AustraliaVictoria1999 Cereals, and Winter pulses clethodim, fluazifop-butyl, haloxyfop-methyl, quizalofop-ethyl, and tepraloxydim 1 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		197Bromus diandrusRipgut Brome5467
2 Australia (South Australia) AustraliaSouth Australia2011 Wheat mesosulfuron-methyl, and pyroxsulam 1 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		197Bromus diandrusRipgut Brome5580
3 Australia (South Australia) AustraliaSouth Australia2011 Fencelines, and Wheat glyphosate 1 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
 		197Bromus diandrusRipgut Brome5597
4 Australia (Western Australia) AustraliaWestern Australia2020 Canola clethodim, and quizalofop-ethyl 1 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
 		197Bromus diandrusRipgut Brome26262
5 New ZealandNew Zealand 2024 Wheat pyroxsulam 30 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		197Bromus diandrusRipgut Brome27283
6 United KingdomUnited Kingdom 2020 Wheat iodosulfuron-methyl-Na, mesosulfuron-methyl, and pyroxsulam 44 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
 		197Bromus diandrusRipgut Brome25256
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