From labels and weed guides
Best herbicides for barley in potato
For barley in potato, the weed guides list 3 active-ingredient groups rated good or excellent, after checking that the products are labeled for potato.
Barley control in potato
Every listed product is labeled for potato. 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 barley in potato.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Arrow 2EC EPA 66222-60; same active ingredients on 37 other branded products | clethodim | 1 | WinField Crop Protection 2026, potato: E (PDF) |
| Grapple EPA 71368-121; same active ingredients on 8 other branded products | rimsulfuron | 2 | WinField Crop Protection 2026, potato: G (PDF) |
| Poast EPA 7969-58 | sethoxydim | 1 | WinField Crop Protection 2026, potato: 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.