From labels and weed guides
Best herbicides for lambsquarters in alfalfa
For lambsquarters in alfalfa, the weed guides list 8 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for alfalfa.
Lambsquarters control in alfalfa
Every listed product is labeled for alfalfa. 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 3 weed guides, 8 active-ingredient groups are rated at least 80% control for lambsquarters in alfalfa.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Axill Solutions Flumi 51% WDG EPA 95055-14-93809; same active ingredients on 23 other branded products | flumioxazin | 14 | ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| 2,4-DB 175 EPA 19713-675-1381; same active ingredients on 8 other branded products | 2,4-db | 4 | Mi Weed Guide 2026 Forage, mi forage seedling legumes: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Broclean EPA 34704-891; same active ingredients on 5 other branded products | bromoxynil | 6 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| MCP Amine 4 EPA 34704-130; same active ingredients on 2 other branded products | mcpa | 4 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| PAVILION MTZ EPA 89167-88-89391; same active ingredients on 1 other branded product | metribuzin and pendimethalin | 3, 5 | Ks Weed Guide 2026, ks alfalfa dormant: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Velpar AlfaMax EPA 61842-45; same active ingredients on 1 other branded product | diuron and hexazinone | 5 | Ks Weed Guide 2026, ks alfalfa dormant: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | Ks Weed Guide 2026, ks alfalfa dormant: G → 80–90% control (FieldMarshal policy interval) (PDF); 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.