INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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1
| Canada (Alberta) | Canada | Alberta | 2021 |
Canola
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glyphosate
| 7 |
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase
HRAC Group 9 (Legacy G)
| 40 | Bromus tectorum | Downy Brome (Cheatgrass) | 21234 |
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2
| France | France | | 1981 |
Corn (maize)
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atrazine
| 17 |
PSII inhibitors - Serine 264 Binders
HRAC Group 5 (Legacy C1 C2)
| 40 | Bromus tectorum | Downy Brome (Cheatgrass) | 457 |
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3
| Spain | Spain | | 1990 |
Wheat
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chlorotoluron
| 38 |
PSII inhibitors - Serine 264 Binders
HRAC Group 5 (Legacy C1 C2)
| 40 | Bromus tectorum | Downy Brome (Cheatgrass) | 190 |
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4
| Spain | Spain | | 1990 |
Orchards
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simazine
| 38 |
PSII inhibitors - Serine 264 Binders
HRAC Group 5 (Legacy C1 C2)
| 40 | Bromus tectorum | Downy Brome (Cheatgrass) | 191 |
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5
| United States (Oregon) | United States | Oregon | 1997 |
Kentucky bluegrass
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imazamox, primisulfuron-methyl, and sulfosulfuron
| 45 |
Inhibition of Acetolactate Synthase
HRAC Group 2 (Legacy B)
| 40 | Bromus tectorum | Downy Brome (Cheatgrass) | 1112 |
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6
| United States (Oregon) | United States | Oregon | 2005 |
Grass seed
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clethodim, fluazifop-butyl, quizalofop-ethyl, and sethoxydim
| 45 |
Inhibition of Acetyl CoA Carboxylase
HRAC Group 1 (Legacy A)
| 40 | Bromus tectorum | Downy Brome (Cheatgrass) | 5375 |
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7
| United States (Montana) | United States | Montana | 2016 |
Wheat
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imazamox, procarbazone-Na, and pyroxsulam
| 45 |
Inhibition of Acetolactate Synthase
HRAC Group 2 (Legacy B)
| 40 | Bromus tectorum | Downy Brome (Cheatgrass) | 15071 |
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Heap, I. The International Herbicide-Resistant Weed Database. Online.
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