From labels and weed guides
Best herbicides for waterhemp / palmer in cotton
For waterhemp / palmer in cotton, the weed guides list 6 active-ingredient groups rated good or excellent, after checking that the products are labeled for cotton.
Waterhemp / Palmer control in cotton
Every listed product is labeled for cotton. 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, 6 active-ingredient groups are rated good or excellent for waterhemp / palmer in cotton.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| BLASTWAVE 240 EC EPA 103087-15; same active ingredients on 13 other branded products | oxyfluorfen | 14 | ND Weed Guide 2026: G-E (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | ND Weed Guide 2026: E (PDF) |
| Epitome EPA 2749-636; same active ingredients on 2 other branded products | eptc | 15 | ND Weed Guide 2026: G (PDF) |
| Fierce EPA 59639-193; same active ingredients on 1 other branded product | flumioxazin and pyroxasulfone | 14, 15 | ND Weed Guide 2026: G-E (PDF) |
| Reviton EPA 71512-37-74530 | tiafenacil | 14 | ND Weed Guide 2026: G-E (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | 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.