From labels and weed guides
Best herbicides for black nightshade in field corn
For black nightshade in field corn, the weed guides list 7 active-ingredient groups rated good or excellent, after checking that the products are labeled for field corn.
Black Nightshade control in field corn
Every listed product is labeled for field corn. Ratings are shown when each weed guide that rates this weed stays at good or excellent for the active-ingredient group. If a guide gives a range, the weaker end of the range has to be good or excellent.
Based on 1 weed guide, 7 active-ingredient groups are rated good or excellent for black nightshade in field corn.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| AAtrex 4L EPA 100-497; same active ingredients on 31 other branded products | atrazine | 5 | Ia Weed Guide 2025, ia corn pre: G (PDF); Ia Weed Guide 2025, ia corn post: E (PDF) |
| Axill Solutions Flumi 51% WDG EPA 95055-14-93809; same active ingredients on 27 other branded products | flumioxazin | 14 | Ia Weed Guide 2025, ia corn pre: E (PDF) |
| ARGOS EPA 74530-71; same active ingredients on 22 other branded products | mesotrione | 27 | Ia Weed Guide 2025, ia corn post: E (PDF); Ia Weed Guide 2025, ia corn pre: G-E (PDF) |
| AIM EC EPA 279-3241; same active ingredients on 12 other branded products | carfentrazone-ethyl | 14 | Ia Weed Guide 2025, ia corn post: G (PDF) |
| Distinct EPA 7969-150; same active ingredients on 2 other branded products | dicamba and diflufenzopyr | 4, 19 | Ia Weed Guide 2025, ia corn post: G (PDF) |
| LAUDIS EPA 264-860 | tembotrione | 27 | Ia Weed Guide 2025, ia corn post: G-E (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | Ia Weed Guide 2025, ia corn pre: G-E (PDF) |
Rating legend: E=excellent, G=good, F=fair, P=poor, N=no control. 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.
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Sources
Data from current labels and weed guides. Last source update: 2026-07-14.