From labels and weed guides
Best herbicides for palmer amaranth in soybeans
For palmer amaranth in soybeans, the weed guides list 27 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for soybeans.
Palmer Amaranth 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 2 weed guides, 27 active-ingredient groups are rated at least 80% control for palmer amaranth in soybeans, 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 76 other branded products | 2,4-d | 4 | Mi Weed Guide 2026 Soybeans, mi soybean post trait enlist: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Actylis Glufosinate 280SL EPA 2749-637; same active ingredients on 31 other branded products | glufosinate | 10 | Mi Weed Guide 2026 Soybeans, mi soybean post trait glufosinate: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Antares EPA 82534-5-5905; same active ingredients on 19 other branded products | sulfentrazone | 14 | Mi Weed Guide 2026 Soybeans, mi soybean soil applied: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Authority Elite EPA 279-3442; same active ingredients on 9 other branded products | metolachlor and sulfentrazone | 14, 15 | Mi Weed Guide 2026 Soybeans, mi soybean soil premix: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Aquesta MTZ EPA 91234-49; same active ingredients on 5 other branded products | metribuzin and sulfentrazone | 5, 14 | Mi Weed Guide 2026 Soybeans, mi soybean soil premix: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Authority Assist EPA 279-3330; same active ingredients on 5 other branded products | imazethapyr and sulfentrazone | 2, 14 | Ky Weed Guide 2025, ky soybean preemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Soybeans, mi soybean soil premix: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Authority Maxx EPA 279-9560; same active ingredients on 5 other branded products | chlorimuron and sulfentrazone | 2, 14 | Ky Weed Guide 2025, ky soybean preemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Soybeans, mi soybean soil premix: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Boa EPA 83529-78; same active ingredients on 5 other branded products | lactofen | 14 | Mi Weed Guide 2026 Soybeans, mi soybean post: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Agent GT EPA 33270-30; same active ingredients on 3 other branded products | fomesafen and glyphosate | 9, 14 | Mi Weed Guide 2026 Soybeans, mi soybean post trait glyphosate: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| ANNIHILATE EPA 279-3601-55467; same active ingredients on 3 other branded products | pyroxasulfone and sulfentrazone | 14, 15 | Mi Weed Guide 2026 Soybeans, mi soybean soil premix: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Flu-Rimuron EPA 85678-48; same active ingredients on 2 other branded products | chlorimuron and flumioxazin | 2, 14 | Ky Weed Guide 2025, ky soybean preemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Soybeans, mi soybean soil premix p4: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| Antares Complete EPA 5905-623; same active ingredients on 1 other branded product | metolachlor, metribuzin, and sulfentrazone | 5, 14, 15 | Ky Weed Guide 2025, ky soybean preemergence: 8 → 80–90% 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.