From labels and weed guides
Best herbicides for cutleaf evening-primrose in oats
For cutleaf evening-primrose in oats, the weed guides list 3 active-ingredient groups rated good or excellent, after checking that the products are labeled for oats.
Cutleaf Evening-primrose control in oats
Every listed product is labeled for oats. 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 cutleaf evening-primrose in oats.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| 2,4-D Amine 4 EPA 1381-103; same active ingredients on 74 other branded products | 2,4-d | 4 | Ms Weed Guide 2025, ms small grain: E (PDF) |
| Base Camp MCP Ester EPA 2935-554; same active ingredients on 15 other branded products | mcpa | 4 | Ms Weed Guide 2025, ms small grain: E (PDF) |
| Peak EPA 100-763; same active ingredients on 1 other branded product | prosulfuron | 2 | Ms Weed Guide 2025, ms small grain: G (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.