From labels and weed guides
Best herbicides for lambsquarter in soybeans
For lambsquarter in soybeans, the weed guides list 3 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for soybeans.
Lambsquarter control in soybeans
Every listed product is labeled for soybeans. 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, 3 active-ingredient groups are rated at least 80% control for lambsquarter in soybeans.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Axill Solutions Flumi 51% WDG EPA 95055-14-93809; same active ingredients on 28 other branded products | flumioxazin | 14 | Ia Weed Guide 2025, ia soybean pre: G-E → 80–100% control (FieldMarshal policy interval) (PDF) |
| Abigor EPA 34704-1174; same active ingredients on 8 other branded products | imazamox | 2 | Ia Weed Guide 2025, ia soybean post: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Harmony GT XP EPA 279-9577; same active ingredients on 3 other branded products | thifensulfuron | 2 | Ia Weed Guide 2025, ia soybean post: G-E → 80–100% control (FieldMarshal policy interval) (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.