From labels and weed guides
Best herbicides for kochia in soybeans
For kochia in soybeans, the weed guides list 21 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for soybeans.
Kochia 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 3 weed guides, 21 active-ingredient groups are rated at least 80% control for kochia in soybeans, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 28 other branded products | dicamba | 4 | ND Weed Guide 2026: G-E → 80–99% control (PDF); ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: Ea → 90–99% control (PDF) |
| Bonedry EPA 82557-1; same active ingredients on 13 other branded products | paraquat | 22 | ND Weed Guide 2026: G-E → 80–99% control (PDF); WinField Crop Protection 2026, soybean burndown: E → 91–100% control (PDF) |
| BLASTWAVE 240 EC EPA 103087-15; same active ingredients on 12 other branded products | oxyfluorfen | 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 | Ks Weed Guide 2026, ks soybean pre: E → 90–100% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF); WinField Crop Protection 2026, soybean pp pre: E → 91–100% control (PDF) |
| Caravel EPA 60063-58; same active ingredients on 7 other branded products | clomazone | 13 | WinField Crop Protection 2026, soybean burndown, Q17 rating table, pp. 13, 14, 16, 106, 107, 108, 459, 460: G → 81–90% control (PDF); WinField Crop Protection 2026, soybean pp pre, U04 rating table, pp. 16, 108, 190, 246, 264, 304, 347, 374, 390, 407, 426, 474, 518, 568: G/E → 81–100% control (PDF) |
| Aquesta MTZ EPA 91234-49; same active ingredients on 5 other branded products | metribuzin and sulfentrazone | 5, 14 | WinField Crop Protection 2026, soybean pp pre: E → 91–100% control (PDF) |
| Authority Maxx EPA 279-9560; same active ingredients on 5 other branded products | chlorimuron and sulfentrazone | 2, 14 | Ks Weed Guide 2026, ks soybean pre: E → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean pp pre: E → 91–100% control (PDF) |
| Basis Blend EPA 352-854; same active ingredients on 5 other branded products | rimsulfuron and thifensulfuron | 2 | ND Weed Guide 2026: Ea → 90–99% control (PDF) |
| Grapple EPA 71368-121; same active ingredients on 5 other branded products | rimsulfuron | 2 | ND Weed Guide 2026: Ea → 90–99% control (PDF); ND Weed Guide 2026: Ga → 80–90% control (PDF) |
| Accolade EPA 62719-277-279; same active ingredients on 4 other branded products | flumetsulam | 2 | Ks Weed Guide 2026, ks soybean pre: G3 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean pp pre: G → 81–90% control (PDF) |
| Agent GT EPA 33270-30; same active ingredients on 3 other branded products | fomesafen and glyphosate | 9, 14 | ND Weed Guide 2026: G-E → 80–99% control (PDF); ND Weed Guide 2026: G-Ea → 80–99% control (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF) |
| DuPont Express EPA 352-632; same active ingredients on 3 other branded products | tribenuron-methyl | 2 | ND Weed Guide 2026: Ea → 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: 2026-10-01.