From labels and weed guides
Best herbicides for quackgrass in field corn
For quackgrass in field corn, the weed guides list 7 active-ingredient groups rated good or excellent, after checking that the products are labeled for field corn.
Quackgrass control in field corn
Every listed product is labeled for field corn. 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 2 weed guides, 7 active-ingredient groups are rated good or excellent for quackgrass in field corn.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Arrow 2EC EPA 66222-60; same active ingredients on 26 other branded products | clethodim | 1 | ND Weed Guide 2026: G-E (PDF) |
| Enlist Duo EPA 62719-649; same active ingredients on 3 other branded products | 2,4-d and glyphosate | 4, 9 | ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, corn burndown: E (PDF) |
| DuPont Steadfast EPA 352-608; same active ingredients on 2 other branded products | nicosulfuron and rimsulfuron | 2 | ND Weed Guide 2026: G-E (PDF); WinField Crop Protection 2026, corn post: E (PDF) |
| 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); WinField Crop Protection 2026, corn post: G (PDF) |
| Capreno EPA 264-1063 | tembotrione and thiencarbazone-methyl | 2, 27 | WinField Crop Protection 2026, corn post: G (PDF); WinField Crop Protection 2026, corn pp pre: G (PDF) |
| Halex GT EPA 100-1282 | glyphosate, mesotrione, and metolachlor | 9, 15, 27 | ND Weed Guide 2026: E (PDF); WinField Crop Protection 2026, corn post: E (PDF) |
| REVULIN Q EPA 352-900 | mesotrione and nicosulfuron | 2, 27 | ND Weed Guide 2026: G-E (PDF); WinField Crop Protection 2026, corn post: 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.