From labels and weed guides
Best herbicides for purple nutsedge in field corn
For purple nutsedge in field corn, the weed guides list 5 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for field corn.
Purple Nutsedge 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 1 weed guide, 5 active-ingredient groups are rated at least 80% control for purple nutsedge in field corn.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| 78623 58% Technical Solution EPA 524-532; same active ingredients on 82 other branded products | glyphosate | 9 | Ms Weed Guide 2025, ms corn post: 7 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms corn post preharvest: 7 → 80–90% control (FieldMarshal policy interval) (PDF) |
| Comply EPA 100-1414-55467; same active ingredients on 13 other branded products | atrazine, mesotrione, and metolachlor | 5, 15, 27 | Ms Weed Guide 2025, ms corn pre: 7 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms corn post: 7 → 80–90% control (FieldMarshal policy interval) (PDF) |
| Acuron EPA 100-1466 | atrazine, bicyclopyrone, mesotrione, and metolachlor | 5, 15, 27 | Ms Weed Guide 2025, ms corn pre: 7 → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms corn post: 7 → 80–90% control (FieldMarshal policy interval) (PDF) |
| Gambit EPA 81880-27-10163 | halosulfuron-methyl and prosulfuron | 2 | Ms Weed Guide 2025, ms corn post: 7 → 80–90% control (FieldMarshal policy interval) (PDF) |
| Halex GT EPA 100-1282 | glyphosate, mesotrione, and metolachlor | 9, 15, 27 | Ms Weed Guide 2025, ms corn post: 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.