| Guide to Weed Response to Postemergence Corn Herbicides | |||||||||||||||||||||||
| Barnyardgrass | Broadleaf Signalgrass | Crabgrass | Fall Panicum | Foxtail | Johnsongrass (Seedling) | Johnsongrass (Rhizome) | Shattercane | Yellow Nutsedge | Black Nightshade | Burcucumber | Cocklebur | Jimsonweed | Lambsquarters | Morningglory | Pigweed, Smooth | Prickly Sida (Teaweed) | Ragweed, Common | Ragweed, Giant | Sicklepod | Smartweed | Velvetleaf | ||
| Accent | 8 | 8 | 6 | 7 | 8 | 9 | 8 | 9 | 5 | 2 | 7 | 6 | 8 | 5 | 6 | 8 | 2 | 2 | 2 | 4 | 6 | 5 | |
| Accent Gold | 8 | 5 | 7 | 8 | 8 | 6 | 8 | 6 | 6 | 8 | 8 | 6 | 6 | 8 | 8 | 7 | 8 | 7 | |||||
| Aim | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 3 | 7 | 6 | 8 | 8 | 8 | 6 | 2 | 4 | 9 | |||
| Atrazine + Crop Oil | 6 | 6 | 5 | 5 | 6 | 0 | 0 | 3 | 6 | 9 | 7 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 6 | 9 | 8 | |
| Basis Gold | 8 | 8 | 8 | 7 | 8 | 8 | 6 | 8 | 6 | 5 | 7 | 6 | 8 | 8 | 8 | 9 | 7 | 9 | 8 | 8 | 7 | ||
| Beacon | 3 | 3 | 5 | 6 | 6 | 8 | 7 | 9 | 6 | 7 | 8 | 8 | 8 | 5 | 6 | 8 | 7 | 9 | 9 | 6 | 6 | 7 | |
| Buctril | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 6 | 9 | 9 | 9 | 7 | 7 | 4 | 9 | 8 | 3 | 9 | 8 | |
| Celebrity | 8 | 8 | 5 | 7 | 8 | 9 | 8 | 9 | 5 | 8 | 7 | 9 | 8 | 9 | 8 | 9 | 8 | 9 | 8 | 6 | 8 | 8 | |
| Celebrity Plus | 8 | 8 | 5 | 7 | 8 | 9 | 8 | 9 | 5 | 8 | 7 | 9 | 8 | 9 | 8 | 9 | 8 | 9 | 9 | 8 | 8 | ||
| Clarity or Banvil | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 7 | 9 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 7 | 9 | 8 | |
| 2,4-D | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 9 | 7 | 9 | 9 | 9 | 8 | 9 | 9 | 6 | 7 | 8 | ||
| Distinct | 5 | 3 | 5 | 5 | 5 | 2 | 5 | 0 | 8 | 7 | 9 | 9 | 9 | 8 | 9 | 8 | 9 | 9 | 8 | 8 | |||
| Exceed | 3 | 2 | 3 | 6 | 6 | 8 | 5 | 8 | 5 | 8 | 8 | 9 | 9 | 8 | 7 | 9 | 8 | 9 | 9 | 7 | 9 | 8 | |
| Hornet | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 5 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 7 | 9 | 8 | ||
| Liberty (LL-corn only) | 7 | 7 | 7 | 7 | 9 | 8 | 5 | 8 | 5 | 8 | 7 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 9 | 7 | 9 | 8 | |
| LibertyATZ (ll-corn only) | 6 | 7 | 7 | 7 | 9 | 7 | 5 | 7 | 5 | 9 | 7 | 9 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 7 | 9 | 9 | |
| Lightning (IT corn only) | 8 | 8 | 7 | 8 | 9 | 9 | 7 | 9 | 6 | 9 | 6 | 9 | 8 | 8 | 8 | 9 | 8 | 7 | 8 | 7 | 9 | 9 | |
| Marksman | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 9 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | 9 | 8 | |
| NorthStar | 3 | 3 | 3 | 6 | 6 | 8 | 7 | 9 | 6 | 9 | 8 | 9 | 9 | 9 | 8 | 9 | 8 | 9 | 9 | 7 | 9 | 8 | |
| Permit | 2 | 2 | 2 | 3 | 3 | 3 | 0 | 3 | 8 | 4 | 3 | 9 | 7 | 4 | 4 | 8 | 7 | 8 | 7 | 2 | 7 | 8 | |
| ReadyMasterATZ (RR-corn) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 6 | 7 | 8 | 9 | 9 | 9 | 8 | 9 | 7 | 9 | 8 | 7 | 9 | 8 | |
| Roundup UltraMAX | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 6 | 8 | 8 | 9 | 9 | 8 | 7 | 9 | 7 | 7 | 8 | 7 | 8 | 8 | |
| Spirit | 3 | 2 | 3 | 6 | 6 | 8 | 6 | 9 | 5 | 8 | 8 | 9 | 9 | 6 | 6 | 8 | 7 | 9 | 9 | 6 | 8 | 7 | |
| User should always read and follow the manufacturer's chemical label before use of any herbicide. | |||||||||||||||||||||||