From labels and weed guides
Best herbicides for seedling johnsongrass in soybeans
For seedling johnsongrass in soybeans, the weed guides list 11 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for soybeans.
Seedling Johnsongrass 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, 11 active-ingredient groups are rated at least 80% control for seedling johnsongrass in soybeans.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| 78623 58% Technical Solution EPA 524-532; same active ingredients on 83 other branded products | glyphosate | 9 | Ms Weed Guide 2025, ms soybean post: 9 → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF) |
| Arrow 2EC EPA 66222-60; same active ingredients on 36 other branded products | clethodim | 1 | Ms Weed Guide 2025, ms soybean post: 9 → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF) |
| Aceto Trifluralin 4EC EPA 2749-561; same active ingredients on 13 other branded products | trifluralin | 3 | WinField Crop Protection 2026, soybean pp pre: G → 81–90% control (PDF) |
| Axill Solutions Imazethapyr 2SL EPA 93809-3; same active ingredients on 10 other branded products | imazethapyr | 2 | Ky Weed Guide 2025, ky soybean postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: G → 81–90% control (PDF) |
| Abigor EPA 34704-1174; same active ingredients on 8 other branded products | imazamox | 2 | Ky Weed Guide 2025, ky soybean postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: G → 81–90% control (PDF) |
| Agent GT EPA 33270-30; same active ingredients on 3 other branded products | fomesafen and glyphosate | 9, 14 | Ky Weed Guide 2025, ky soybean burndown: 9 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF) |
| Assure II EPA 352-541; same active ingredients on 3 other branded products | quizalofop-p-ethyl | 1 | Ky Weed Guide 2025, ky soybean postemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF) |
| Enfilade DX EPA 91234-308; same active ingredients on 3 other branded products | fluazifop-p-butyl | 1 | Ky Weed Guide 2025, ky soybean postemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms soybean post: 9 → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF) |
| Poast EPA 7969-58; same active ingredients on 1 other branded product | sethoxydim | 1 | Ky Weed Guide 2025, ky soybean postemergence: 9 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms soybean post: 9 → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: G → 81–90% control (PDF) |
| Sequence EPA 100-1185 | glyphosate and metolachlor | 9, 15 | Ky Weed Guide 2025, ky soybean burndown: 9 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms soybean post: 9 → 90–100% control (FieldMarshal policy interval) (PDF); WinField Crop Protection 2026, soybean post: E → 91–100% control (PDF) |
| SOLICAM DF EPA 61842-41 | norflurazon | 12 | Ms Weed Guide 2025, ms soybean pre: 7 → 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.