From labels and weed guides
Best herbicides for kochia in field corn
For kochia in field corn, the weed guides list 37 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for field corn.
Kochia 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 3 weed guides, 37 active-ingredient groups are rated at least 80% control for kochia in field corn, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Alligare Dicamba 4 EPA 81927-55; same active ingredients on 35 other branded products | dicamba | 4 | Ks Weed Guide 2026, ks corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); 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) |
| AAtrex 4L EPA 100-497; same active ingredients on 31 other branded products | atrazine | 5 | Ks Weed Guide 2026, ks corn post: E3 → 90–100% control (FieldMarshal policy interval) (PDF); Ks Weed Guide 2026, ks corn pre grid20: G3 → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 90–99% control (PDF); ND Weed Guide 2026: G-E → 80–99% control (PDF) |
| Actylis Glufosinate 280SL EPA 2749-637; same active ingredients on 31 other branded products | glufosinate | 10 | ND Weed Guide 2026: E → 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) |
| Comply EPA 100-1414-55467; same active ingredients on 13 other branded products | atrazine, mesotrione, and metolachlor | 5, 15, 27 | ND Weed Guide 2026: E → 90–99% 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) |
| Grapple EPA 71368-121; same active ingredients on 10 other branded products | rimsulfuron | 2 | ND Weed Guide 2026: Ea → 90–99% control (PDF); ND Weed Guide 2026: Ga → 80–90% control (PDF) |
| Alluvex EPA 352-877; same active ingredients on 9 other branded products | rimsulfuron and thifensulfuron | 2 | ND Weed Guide 2026: Ea → 90–99% control (PDF) |
| Definite EPA 83529-105; same active ingredients on 7 other branded products | acetochlor, clopyralid, and flumetsulam | 2, 4, 15 | ND Weed Guide 2026: G-Ea → 80–99% control (PDF) |
| Broclean EPA 34704-891; same active ingredients on 5 other branded products | bromoxynil | 6 | ND Weed Guide 2026: G-E → 80–99% 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) |
| Corsican EPA 7969-279-55467; same active ingredients on 2 other branded products | dimethenamid-p and saflufenacil | 14, 15 | Ks Weed Guide 2026, ks corn pre grid21: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026: E → 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.