Patent ID: 6239070
Filing Date: 2001-05-29
Classification: A01N

Abstract:
A method for reducing phytotoxicity in a crop plant in need of same, said phytotoxicity in said crop plant resulting from treatment with a 4-benzoylisoxazole herbicide, said method comprising applying to said crop plant, to its locus or to its seed:(a) a herbicidally effective amount, sufficient to elicit phytotoxicity in said crop plant, of a 4-benzoylisoxazole herbicide selected from the group consisting of:5-cyclopropyl-4-(2-methylsulfonyl-4-trifluoromethyl)benzoylisoxazole; ethyl 5-cyclopropyl-4-(2-methylsulfonyl-4-trifluoromethyl)benzoylisoxazole-3-car boxylate;ethyl 5-cyclopropyl-4-[3,4-dichloro-2-(methylthio)benzoylisoxazole-3-carboxylate ;5-cyclopropyl-4-[4-bromo-2-(methylsulfonylmethyl)benzoylisoxazole;5-cyclopropyl-4-(4-methylsulfonyl-2-trifluoromethyl)benzoylisoxazole; and5-cyclopropyl-4-(4-chloro-2-methylsulfonyl)benzoylisoxazole; and(b) an effective phytoxicity-reducing amount of at least one sulfonylurea herbicide selected from the group consisting of:1-(2-chlorophenylsulfonyl)-3-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea;2-[4-methoxy-6-methyl-1,3,5-triazin-2-yl(methyl)carbamoylsulfamoyl]benzoic acid;3-(4-methoxy-6-methyl-1,3,5-triazin-2-ylcarbamoylsulfamoyl)thiophen-2-carbo xylic acid;2-(4-methoxy-6-methyl-1,3,5-triazin-2-ylcarbamoylsulfamoyl)benzoic acid;1-[2-(2-chloroethoxy)phenylsulfonyl]-3-(4-methoxy-6-methyl-1,3,5-triazin-2- yl)urea;1-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-3-[2-(3,3,3-trifluoropropyl)-phen ylsulfonyl]urea;1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-dimethylcarbamoyl-2-pyridylsulfonyl)ur ea;2-[4,6-bis(difluoromethoxy)pyrimidin-2-yl-carbamoylsulfamoyl]benzoic acid;N-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-3-ethylsulfonyl-2-pyridine sulfonamide; and1-(2-ethylsulfonylimidazo[1,2-a]pyridin-3-ylsulfonyl)-3-(4,6-dimethoxypyrim idin-2-yl)urea;the weight ratio of (a) to (b) being from about 500:1 to about 1:50.