Weeds Pages
| BEN | CAP | CAR | CLE | GLY | MET* | NAP | OXY | PAR* | PEL | SET | TRI | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mode of Action1 | 8 | un | 14 | 1 | 9 | 17 | 15 | 14 | 22 | 27 | 1 | 3 |
| ANNUAL WEEDS | ||||||||||||
| barley, foxtail | C | — | N | C | C | C | C | N | C | — | C | C |
| barnyardgrass | C | — | N | C | C | C | C | P | P | C | C | C |
| bluegrass, annual | C | — | N | C | C | C | C | P | P | C | N | C |
| canarygrass, littleseed | C | — | N | C | C | C | C | P | P | — | C | C |
| chickweed, common | P | C | P | N | C | C | C | N | C | C | N | C |
| goosefoot, nettleleaf | P | — | — | N | C | C | C | C | C | — | N | C |
| groundcherries | N | — | C | N | C | C | N | C | C | — | N | N |
| groundsel, common | N | — | — | N | C | C | P | C | C | C | N | N |
| knotweed, common | C | — | — | N | P | C | C | P | P | C | N | C |
| lambsquarters, common | P | C | — | N | C | P | C | C | P | P | N | C |
| lettuce, prickly | N | — | — | N | C | C | C | C | P | — | N | N |
| little mallow (cheeseweed) | N | P | C | N | P | P | P | C | P | C | N | N |
| mustards | N | C | P | N | C | C | P | C | C | C | N | N |
| nettle, burning | N | P | C | N | N | C | P | C | P | — | N | P |
| nightshade, black | N | P | N | N | C | C | N | C | C | — | N | N |
| nightshade, hairy | N | P | N | N | C | C | N | C | C | — | N | N |
| oat, wild | N | — | N | C | C | C | C | P | P | — | C | P |
| pigweeds | C | C | — | N | C | C | C | C | C | P | N | C |
| pineapple-weed | N | — | N | N | C | — | P | P | P | — | N | N |
| polypogon, rabbitfoot | C | — | N | C | C | — | C | N | C | — | C | C |
| purslane, common | C | P | N | N | C | C | C | C | P | C | N | C |
| radish, wild | N | — | P | N | C | C | P | C | C | — | N | N |
| rocket, London | N | — | C | N | C | C | C | C | P | C | N | N |
| shepherd's-purse | N | C | P | N | C | C | P | P | P | C | N | N |
| sowthistles | N | C | N | N | C | C | C | C | P | — | N | N |
| volunteer grains | N | — | N | C | C | C | C | N | P | — | C | C |
| PERENNIAL WEEDS | ||||||||||||
| bindweed, field (seedling) | N | P | C | N | C | P | N | N | P | — | N | P |
| bindweed, field (established) | N | N | N | N | P | P | P | N | N | N | N | C |
| nutsedge, purple | N | — | N | N | P | P | N | N | N | N | N | N |
| nutsedge, yellow | N | — | N | N | P | C | N | N | N | N | N | N |
| C | = control | P | = partial control | N | = no control | — | = no information |
| Herbicide | Mode of action1 | Herbicide | Mode of action1 | ||
|---|---|---|---|---|---|
| BEN | = bensulide (Prefar) | 8 | NAP | = napropamide (Devrinol) | 15 |
| CAP | = caprylic and capric acids (Suppress) | un | OXY | = oxyfluorfen (Goal, GoalTender) | 14 |
| CAR | = carfentrazone (Shark) | 14 | PAR | = paraquat* (Gramoxone) | 22 |
| CLE | = clethodim (Select Max) | 1 | PEL | = pelargonic acid (Scythe) | 17 |
| GLY | = glyphosate (Roundup PowerMAX) | 9 | SET | = sethoxydim (Poast) | 1 |
| MET | = metam sodium* (Vapam) | 17 | TRI | = trifluralin (Treflan) | 3 |
| * | Permit required from county agricultural commissioner for purchase or use. |
| 1 | Group numbers are assigned by the Weed Science Society of America (WSSA) according to different modes of action. Although weeds may exhibit multiple resistance across many groups, use mode-of-action group numbers to plan mixtures or rotations of herbicides with different modes of action. |
Text Updated: 10/19