Use of 3-isoxazolidinones as selective herbicides in grass and
The present invention is directed to the use of at least one 3-isoxazolidone herbicide selected from the group consisting of 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone and 2-(2,5-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone as a selective herbicide in a grass or Brassica crop selected from the group consisting of corn, rice, Sorghum , barley, rye, and canola.
1. A method for selective control of barnyard grass, chickweed and green foxtail in Sorghum and/or rye, the method comprising the step of applying to the locus of such vegetation at least one 3-isoxazolidone herbicide selected from the group consisting of 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone and 2-(2,5-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone in a selectively effective herbicidal amount.
2. The method of claim 1 wherein said herbicide is employed pre-emergently.
3. The method of claim 2 wherein the herbicide is 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone.
4. The method of claim 3 wherein the herbicide is employed at a rate of between about 1 and about 4000 grams of active ingredient/hectare.
5. The method of claim 4 wherein the herbicide is employed at a rate of between about 75 and about 2,000 grams of active ingredient/hectare.
6. The method of claim 5 wherein the herbicide is employed at a rate of between about 100 and about 1,500 grams of active ingredient/hectare.
7. The method of claim 2 wherein the herbicide is 2-(2,5-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone.
8. The method of claim 7 wherein the herbicide is employed at a rate of between about 1 and about 4000 grams of active ingredient/hectare.
9. The method of claim 8 wherein the herbicide is employed at a rate of between about 75 and about 2,000 grams of active ingredient/hectare.
10. The method of claim 9 wherein the herbicide is employed at a rate of between about 100 and about 1,500 grams of active ingredient/hectare.