From labels and weed guides
Best herbicides for lambsquarters in cowpea
For lambsquarters in cowpea, the weed guides list 5 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for cowpea.
Lambsquarters control in cowpea
Every listed product is labeled for cowpea. Ratings are shown when each weed guide that rates this weed has a lower interval bound of at least 80% control for the active-ingredient group. If a guide gives a range, its lower bound must be at least 80%.
Based on 1 weed guide, 5 active-ingredient groups are rated at least 80% control for lambsquarters in cowpea.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Axill Solutions Flumi 51% WDG EPA 95055-14-93809; same active ingredients on 18 other branded products | flumioxazin | 14 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Antares EPA 82534-5-5905; same active ingredients on 16 other branded products | sulfentrazone | 14 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Authority Elite EPA 279-3442; same active ingredients on 9 other branded products | metolachlor and sulfentrazone | 14, 15 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 8 other branded products | paraquat | 22 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| PETRA IMI EPA 89168-49-91395; same active ingredients on 2 other branded products | imazethapyr and sulfentrazone | 2, 14 | ND Weed Guide 2026: E → 90–99% control (PDF) |
Rating bands: E 90-100%, G 80-89%, F 70-79%, P under 70%, N none. Policy intervals are marked in the source ratings. 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. Read the rating method.
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Sources
Data from current labels and weed guides. Last source update: 2026-09-30.