From labels and weed guides
Best herbicides for witchgrass in fallow
For witchgrass in fallow, the weed guides list 2 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for fallow.
Witchgrass control in fallow
Every listed product is labeled for fallow. 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, 2 active-ingredient groups are rated at least 80% control for witchgrass in fallow.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| ABUNDIT Edge EPA 352-922; same active ingredients on 83 other branded products | glyphosate | 9 | WinField Crop Protection 2026, fallow: G → 81–90% control (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | WinField Crop Protection 2026, fallow: G → 81–90% 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.
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Sources
Data from current labels and weed guides. Last source update: 2026-09-30.