From labels and weed guides
Best herbicides for lambsquarters in field corn
For lambsquarters in field corn, the weed guides list 51 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for field corn.
Lambsquarters control in field corn
Every listed product is labeled for field corn. 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 5 weed guides, 51 active-ingredient groups are rated at least 80% control for lambsquarters in field corn, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| 2,4-D Amine 4 EPA 1381-103; same active ingredients on 77 other branded products | 2,4-d | 4 | Mi Weed Guide 2026 Corn, mi corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post trait enlist: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF) |
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 35 other branded products | dicamba | 4 | Ks Weed Guide 2026, ks corn post: E → 90–100% control (FieldMarshal policy interval) (PDF); Ks Weed Guide 2026, ks corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: G → 80–90% control (PDF) |
| AAtrex 4L EPA 100-497; same active ingredients on 31 other branded products | atrazine | 5 | Ks Weed Guide 2026, ks corn post: E → 90–100% control (FieldMarshal policy interval) (PDF); Ks Weed Guide 2026, ks corn pre grid20: G → 80–90% control (FieldMarshal policy interval) (PDF); Ky Weed Guide 2025, ky corn preemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn soil applied: E → 90–100% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post: E → 90–100% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF); Tn Weed Guide 2026, tn corn soil applied: 7 → 80–90% control (FieldMarshal policy interval) (PDF) |
| Axill Solutions Flumi 51% WDG EPA 95055-14-93809; same active ingredients on 27 other branded products | flumioxazin | 14 | Mi Weed Guide 2026 Corn, mi corn soil applied: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| ARGOS EPA 74530-71; same active ingredients on 22 other branded products | mesotrione | 27 | Ky Weed Guide 2025, ky corn postemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn soil applied: E → 90–100% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post: E → 90–100% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF) |
| Bicep II Magnum EPA 100-817; same active ingredients on 15 other branded products | atrazine and metolachlor | 5, 15 | Ks Weed Guide 2026, ks corn pre grid20: G → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn soil premix: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | ND Weed Guide 2026: E → 90–99% control (PDF) |
| Comply EPA 100-1414-55467; same active ingredients on 13 other branded products | atrazine, mesotrione, and metolachlor | 5, 15, 27 | Ky Weed Guide 2025, ky corn preemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF) |
| BLASTWAVE 240 EC EPA 103087-15; same active ingredients on 12 other branded products | oxyfluorfen | 14 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| FIRSTSHOT SG EPA 279-9609; same active ingredients on 10 other branded products | thifensulfuron and tribenuron-methyl | 2 | Mi Weed Guide 2026 Corn, mi corn soil premix p4: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Artemis EPA 83100-48-91395; same active ingredients on 8 other branded products | mesotrione and metolachlor | 15, 27 | Ky Weed Guide 2025, ky corn preemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn soil premix: E → 90–100% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn soil premix p4: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Definite EPA 83529-105; same active ingredients on 7 other branded products | acetochlor, clopyralid, and flumetsulam | 2, 4, 15 | 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
- Ks Weed Guide 2026 (PDF)
- Ky Weed Guide 2025 (PDF)
- Mi Weed Guide 2026 Corn (PDF)
- ND Weed Guide 2026 (PDF)
- Tn Weed Guide 2026 (PDF)
Data from current labels and weed guides. Last source update: 2026-09-30.