From labels and weed guides
Best herbicides for downy brome in wheat
For downy brome in wheat, the weed guides list 3 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for wheat.
Downy Brome control in wheat
Every listed product is labeled for wheat. Ratings are shown when each weed guide that rates this weed has a lower interval bound of at least 80% control for the active-ingredient group. If a guide gives a range, its lower bound must be at least 80%.
Based on 2 weed guides, 3 active-ingredient groups are rated at least 80% control for downy brome in wheat.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Imitator + 2,4-D EPA 19713-635; same active ingredients on 2 other branded products | 2,4-d and glyphosate | 4, 9 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Fierce EZ EPA 59639-237 | flumioxazin and pyroxasulfone | 14, 15 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| OSPREY Xtra EPA 264-1195 | mesosulfuron-methyl and thiencarbazone-methyl | 2 | Mi Weed Guide 2026 Small Grain, mi small grain post: G → 80–90% control (FieldMarshal policy interval) (PDF) |
Rating bands: E 90-100%, G 80-89%, F 70-79%, P under 70%, N none. Policy intervals are marked in the source ratings. A range such as G-E means the guide gives a range; 'a' after a rating (e.g., Ga) means the guide assumes its recommended additive. Read the rating method.
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Sources
Data from current labels and weed guides. Last source update: 2026-09-30.