From labels and weed guides
Best herbicides for quackgrass in corn silage
For quackgrass in corn silage, the weed guides list 3 active-ingredient groups rated good or excellent, after checking that the products are labeled for corn silage.
Quackgrass control in corn silage
Every listed product is labeled for corn silage. 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, 3 active-ingredient groups are rated good or excellent for quackgrass in corn silage.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Equip EPA 83100-57-83979; same active ingredients on 2 other branded products | mesotrione and rimsulfuron | 2, 27 | ND Weed Guide 2026: G-E (PDF) |
| Resolve Q EPA 352-777; same active ingredients on 1 other branded product | rimsulfuron and thifensulfuron | 2 | ND Weed Guide 2026: G-E (PDF) |
| REVULIN Q EPA 352-900 | mesotrione and nicosulfuron | 2, 27 | ND Weed Guide 2026: 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.