| Weed Problem | Chemical rate per acre | Product per acre | Treatment Time | Remarks |
|---|---|---|---|---|
| Burdock, buttercup (bulbous), chicory, cornflower or bachelor’s buttons, dandelion, dock (curly) seedlings, fanweed, fleabane, goatsbeard, henbit, lettuce (prickly), meadow campion or ragged-robin, mustard (black, wild), pennycress, plantain, poppy (corn), primrose, radish (wild), rock cress, shepherdspurse, smartweed, thistle (blessed), turnip (wild), vetch (hairy), and suppression of garlic, onions (wild), and thistles | 2,4-D amine 0.25-0.5 lb | 2,4-D amine 0.5-1.0 pt
(various brands 4.0 lb/gal) |
Postemergence spring | Spray 2,4-D when grain is 4 to 8 inches high or after tillering but before jointing. Spraying small grain too early or after jointing can result in reduced yields and uneven ripening. The higher rates of 2,4-D increase the risk of grain injury. Use production practices favorable to maximum crop competition. Do not graze dairy animals or feed forage within 14 days of treatment. Always premix 2,4-D amine with water before mixing with liquid fertilizer. Oats may be injured, use low rate. |
| Most winter annual broadleaf weeds as listed for 2,4-D amine. Better suppression of perennials, especially garlic and onion (wild) | 2,4-D low volatile ester
0.25-0.5 lb |
2,4-D low volatile ester
0.5-1.0 pt (various brands 4.0 lb/gal) |
Postemergence spring | Spray 2,4-D when grain is 4 to 8 inches high or after tillering but before jointing. Caution: Vapors and drifts are injurious to tomato, tobacco, and many ornamentals. Underseeded legumes usually are killed. Use higher rates to prevent garlic aerial bulbet formation. Cannot control garlic in oats without injuring oats. Best results if daytime temperature is 50°F or higher for 5 to 7 days following treatment. For best results, do not apply with liquid nitrogen solution, because the proper time of application of each differs. Uniform coverage is important. |
