From labels and weed guides
Best herbicides for morningglory in soybeans
For morningglory in soybeans, the weed guides list 22 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for soybeans.
Morningglory 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, 22 active-ingredient groups are rated at least 80% control for morningglory in soybeans, showing the top 12 below.
| 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 | Ks Weed Guide 2026, ks soybean post: G → 80–90% control (FieldMarshal policy interval) (PDF) |
| 2,4-D Amine 4 EPA 1381-103; same active ingredients on 76 other branded products | 2,4-d | 4 | Ks Weed Guide 2026, ks soybean post: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Agent 1.88 EPA 33270-31; same active ingredients on 16 other branded products | fomesafen | 14 | Ky Weed Guide 2025, ky soybean postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF) |
| Acifin 2L EPA 82534-2-88783; same active ingredients on 9 other branded products | acifluorfen | 14 | Ky Weed Guide 2025, ky soybean postemergence: 8 → 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 | Ks Weed Guide 2026, ks 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 | Ks Weed Guide 2026, ks soybean post: G → 80–90% control (FieldMarshal policy interval) (PDF); Ky Weed Guide 2025, ky soybean postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF) |
| Ankur EPA 83529-98; same active ingredients on 7 other branded products | cloransulam-methyl | 2 | Ks Weed Guide 2026, ks soybean pre: G → 80–90% control (FieldMarshal policy interval) (PDF); Ks Weed Guide 2026, ks soybean post: G → 80–90% control (FieldMarshal policy interval) (PDF); Ky Weed Guide 2025, ky soybean postemergence: 8 → 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 | Ks Weed Guide 2026, ks soybean pre: E → 90–100% control (FieldMarshal policy interval) (PDF); Ky Weed Guide 2025, ky soybean preemergence: 8 → 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 | Ks Weed Guide 2026, ks soybean pre: E → 90–100% control (FieldMarshal policy interval) (PDF); Ky Weed Guide 2025, ky soybean preemergence: 9 → 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 | Ks Weed Guide 2026, ks soybean pre: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Fever Prime EPA 89167-87-89391; same active ingredients on 2 other branded products | glufosinate and metolachlor | 10, 15 | Ks Weed Guide 2026, ks soybean post: 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 | Ks Weed Guide 2026, ks soybean pre cont: E → 90–100% control (FieldMarshal policy interval) (PDF); 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.