From labels and weed guides

Best herbicides for rhizome johnsongrass in field corn

For rhizome johnsongrass in field corn, the weed guides list 6 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for field corn.

Rhizome Johnsongrass 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, 6 active-ingredient groups are rated at least 80% control for rhizome johnsongrass in field corn.

Example productActive ingredientsMOA groupRatings checked
Enlist Duo
EPA 62719-649; same active ingredients on 3 other branded products
2,4-d and glyphosate4, 9Ky Weed Guide 2025, ky corn burndown: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post trait enlist: E → 90–100% control (FieldMarshal policy interval) (PDF)
Accent
EPA 352-560; same active ingredients on 2 other branded products
nicosulfuron2Ky Weed Guide 2025, ky corn postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post: G → 80–90% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms corn post: 8 → 80–90% control (FieldMarshal policy interval) (PDF)
DuPont Steadfast
EPA 352-608; same active ingredients on 2 other branded products
nicosulfuron and rimsulfuron2Ky Weed Guide 2025, ky corn postemergence: 8 → 80–90% control (FieldMarshal policy interval) (PDF); Mi Weed Guide 2026 Corn, mi corn post premix: G → 80–90% control (FieldMarshal policy interval) (PDF)
Halex GT
EPA 100-1282
glyphosate, mesotrione, and metolachlor9, 15, 27Mi Weed Guide 2026 Corn, mi corn post trait glyphosate: E → 90–100% control (FieldMarshal policy interval) (PDF); Ms Weed Guide 2025, ms corn post: 7 → 80–90% control (FieldMarshal policy interval) (PDF)
REVULIN Q
EPA 352-900
mesotrione and nicosulfuron2, 27Mi Weed Guide 2026 Corn, mi corn post premix: G → 80–90% control (FieldMarshal policy interval) (PDF)
Sequence
EPA 100-1185
glyphosate and metolachlor9, 15Mi Weed Guide 2026 Corn, mi corn post trait glyphosate: E → 90–100% 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.