From labels and weed guides
Best herbicides for downy brome in corn silage
For downy brome in corn silage, the weed guides list 5 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for corn silage.
Downy Brome control in corn silage
Every listed product is labeled for corn silage. 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 1 weed guide, 5 active-ingredient groups are rated at least 80% control for downy brome in corn silage.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Actylis Atrazine 4L EPA 2749-657; same active ingredients on 4 other branded products | atrazine | 5 | ND Weed Guide 2026: G → 80–90% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Acuron EPA 100-1466 | atrazine, bicyclopyrone, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| Corvus EPA 264-1066 | isoxaflutole and thiencarbazone-methyl | 2, 27 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| Kyber EPA 59639-236 | flumioxazin, metribuzin, and pyroxasulfone | 5, 14, 15 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Trivolt EPA 264-1211 | flufenacet, isoxaflutole, and thiencarbazone-methyl | 2, 15, 27 | ND Weed Guide 2026: G → 80–90% control (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.
Build the full program
Check crop, timing, state, resistance, and rotation in one plan before you make a recommendation.
Sources
Data from current labels and weed guides. Last source update: 2026-09-30.