Weeds Pages
| PREEMERGENCE | |||||
|---|---|---|---|---|---|
| BEN | FLM | MEO | OXY | TRI | |
| Mode-of-Action Group Number1 | 8 | 14 | 15 | 14 | 3 |
| ANNUAL WEEDS | |||||
| asters, wild | — | — | — | — | — |
| barnyardgrass | C | P | C | P | C |
| bluegrass, annual | C | P | C | P | C |
| chickweed, common | P | C | C | N | C |
| chicory, wild | — | — | — | — | — |
| dandelion seedlings | — | — | — | N | N |
| goosefoot, nettleleaf | P | C | P | C | C |
| groundsel, common | N | — | N | C | N |
| henbit | N | C | — | C | C |
| horseweed | N | C | — | P | N |
| knotweed, oval-leaf | C | — | N | P | C |
| lambsquarters, common | C | C | P | C | C |
| lettuce, prickly | N | P | N | C | N |
| mallow, little (cheeseweed) | N | C | P | C | P |
| mustard, black | N | C | N | C | N |
| nettle, burning | P | C | C | C | C |
| nightshade, hairy | N | C | C | C | N |
| pigweeds | C | C | C | C | C |
| pineapple-weed | N | — | — | P | N |
| plantains | — | — | — | — | — |
| purslane, common | C | C | C | C | C |
| rocket, London | N | N | N | C | N |
| Russian thistle | N | C | P | P | P |
| shepherd's-purse | N | C | P | P | N |
| sowthistles | N | C | P | C | N |
| PERENNIAL WEEDS | |||||
| nutsedge, yellow | N | N | P | N | N |
| C | = control | P | = partial control | N | = no control | — | = no information |
| Herbicide Legend | |
| BEN | = bensulide (Prefar 4-E) |
| FLM | = flumioxazin (Chateau EZ) |
| MEO | = S-metolachlor (Dual Magnum) |
| OXY | = oxyfluorfen (GoalTender, etc.) |
| TRI | = trifluralin (Treflan HFP) |
| 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, mode-of-action numbers are useful in planning mixtures or rotations of herbicides with different modes of action. |
| POSTEMERGENCE | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| CAR | CLE | GLY | LIN | MEO | OXY | PEL | PRM | SET | |
| Mode-of-Action Group Number1 | 14 | 1 | 9 | 7 | 15 | 14 | 26 | 5 | 1 |
| ANNUAL WEEDS | |||||||||
| asters, wild | — | — | — | — | — | — | — | — | — |
| barnyardgrass | N | C | C | C | C | P | C | N | C |
| bluegrass, annual | N | C | C | C | C | P | C | C | N |
| chickweed, common | P | N | C | C | C | N | C | C | N |
| chicory, wild | — | — | — | — | — | — | — | — | — |
| dandelion seedlings | C | N | C | — | — | N | — | — | — |
| goosefoot, nettleleaf | P | N | C | C | P | C | — | C | N |
| groundsel, common | — | N | C | P | N | C | C | C | N |
| henbit | — | N | C | C | — | C | — | C | N |
| horseweed | N | N | C | P | — | P | — | C | N |
| knotweed, oval-leaf | — | N | C | P | N | P | C | P | N |
| lambsquarters, common | — | N | C | C | P | C | P | C | N |
| lettuce, prickly | P | N | C | C | — | C | — | C | N |
| mallow, little (cheeseweed) | C | N | P | C | P | C | C | C | N |
| mustard, black | P | N | C | C | N | C | C | C | N |
| nettle, burning | C | N | P | C | C | C | — | C | N |
| nightshade, hairy | C | N | C | C | C | C | — | C | N |
| pigweeds | C | N | C | C | C | C | P | C | N |
| pineapple-weed | N | N | C | P | — | P | — | P | N |
| plantains | — | — | — | — | — | — | — | — | — |
| purslane, common | N | N | C | C | C | C | C | C | N |
| rocket, London | C | N | C | C | N | C | C | C | N |
| Russian thistle | C | N | C | P | — | P | — | P | N |
| shepherd's-purse | P | N | C | C | P | P | C | C | N |
| C | = control | P | = partial control | N | = no control | — | = no information |
| Herbicide Legend | |||
| CAR | = carfentrazone-ethyl (Shark EW) | OXY | = oxyfluorfen (GoalTender) |
| CLE | = clethodim (Select Max) | PEL | = pelargonic acid (Scythe) |
| GLY | = glyphosate (Roundup WeatherMAX) | PRM | = prometryn (Caparol 4L) |
| LIN | = linuron (Lorox DF) | SET | = sethoxydim (Poast) |
| MEO | = S-metolachlor (Dual Magnum) | ||
| 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, mode-of-action numbers are useful in planning mixtures or rotations of herbicides with different modes of action. |