From labels and weed guides
Best herbicides for mayweed in cereal rye
For mayweed in cereal rye, the weed guides list 2 active-ingredient groups rated good or excellent, after checking that the products are labeled for cereal rye.
Mayweed control in cereal rye
Every listed product is labeled for cereal rye. 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, 2 active-ingredient groups are rated good or excellent for mayweed in cereal rye.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Peak EPA 100-763; same active ingredients on 1 other branded product | prosulfuron | 2 | Ms Weed Guide 2025, ms small grain: G (PDF) |
| Huskie EPA 264-1023 | bromoxynil and pyrasulfotole | 6, 27 | Ms Weed Guide 2025, ms small grain: 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.