From labels and weed guides
Best herbicides for crabgrass in fallow
For crabgrass in fallow, the weed guides list 1 active-ingredient group rated good or excellent, after checking that the products are labeled for fallow.
Crabgrass control in fallow
Every listed product is labeled for fallow. Ratings are shown when each weed guide that rates this weed stays at good or excellent for the active-ingredient group. If a guide gives a range, the weaker end of the range has to be good or excellent.
Based on 1 weed guide, 1 active-ingredient group is rated good or excellent for crabgrass in fallow.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| ABUNDIT Edge EPA 352-922; same active ingredients on 84 other branded products | glyphosate | 9 | WinField Crop Protection 2026, fallow: G (PDF); WinField Crop Protection 2026, fallow: G/E (PDF) |
Rating legend: E=excellent, G=good, F=fair, P=poor, N=no control. 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.
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Sources
Data from current labels and weed guides. Last source update: 2026-07-14.