Antidoting herbicidal 3-isoxazolidinone compounds
AssigneeZeneca Limited
InventorMichael P. Ensminger
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Abstract
This invention embodies compositions comprising herbicidally effective compounds corresponding to the formula ##STR1## in which R.sub.1 and R.sub.2 are independently methyl or ethyl, X is H, methyl, chlorine, bromine, fluorine; Y is chlorine, bromine, fluorine; and n is 0, 1 or 2 and a non-phytotoxic antidotally effective amount of an antidote therefor selected from the group of amides of haloalkanoic acids, including oxazolidines and thiazolidines, aromatic oxime derivatives, thiazole carboxylic acids and derivatives, substituted phenylpyrimidines, 2-(dichloroacetyl)-2-methyl-1,3-dioxolane and 2-(dichloromethyl)-2-thiazoline.
Claims38
An herbicidal composition comprising:
- a) an herbicidally effective amount of a 3-isoxazolidinone herbicide having the formula ##STR13## in which R1 and R2 are independently methyl or ethyl;
- X is hydrogen, methyl, chlorine, bromine or fluorine;
- Y is chlorine, bromine or fluorine, and n is 0, 1 or 2;
- b) a non-phytotoxic antidotally-effective amount, with respect to a corn crop, of an antidote compound of the formula ##STR14## in which R1 is C1-C6 haloalkyl, R2-R5 are independently hydrogen or C1-C4 alkyl, R6 and R7 are hydrogen or halogen, and X is oxygen;
- and c) a herbicidally effective amount of one or more co-herbicides selected from acetamide herbicides, S-triazine herbicides, p-toluidine herbicides and sulfonylurea herbicides.
A method of controlling undesirable vegetation in the presence of a corn crop comprising applying to the locus of said vegetation or said crop an herbicidally effective amount of a 3-isoxazolidinone herbicide having the formula ##STR15## in which R1 and R2 are independently methyl or ethyl;
- X is hydrogen, methyl, chlorine, bromine or fluorine;
- Y is chlorine, bromine or fluorine, and n is 0, 1 or 2;
- b) a non-phytotoxic antidotally-effective amount, with respect to a corn crop, of an antidote compound of the formula ##STR16## in which R1 is C1-C6 haloalkyl, R2-R5 are independently hydrogen or C1-C4 alkyl, R6 and R7 are hydrogen or halogen, and X is oxygen;
- and c) a herbicidally effective amount of one or more co-herbicides selected from acetamide herbicides, S-triazine herbicides, p-toluidine herbicides and sulfonylurea herbicides.
An herbicidal composition comprising:
- a) an herbicidally effective amount of a 3-isoxazolidinone herbicide having the formula ##STR17## in which R1 and K2 are independently methyl or ethyl;
- X is hydrogen, methyl, chlorine, bromine or fluorine;
- Y is chlorine, bromine or fluorine, and n is 0, 1 or 2;
- b) a non-phytotoxic antidotally-effective amount, with respect to a corn crop, of an antidote compound of the formula ##STR18## in which R1 is C1-C6 haloalkyl, R2-R5 are independently hydrogen or C1-C4 alkyl, R6 and R7 are hydrogen or halogen, and X is oxygen.
A method of controlling undesirable vegetation in the presence of a corn crop comprising applying to the locus of said vegetation or said crop an herbicidally effective amount of a 3-isoxazolidinone herbicide having the formula ##STR19## in which R1 and R2 are independently methyl or ethyl;
- X is hydrogen, methyl, chlorine, bromine or fluorine;
- Y is chlorine, bromine or fluorine, and n is 0, 1 or 2;
- b) a non-phytotoxic antidotally-effective amount, with respect to a corn crop, of an antidote compound of the formula ##STR20## in which R1 is C1-C6 haloalkyl, R2-R5 are independently hydrogen or C1-C4 alkyl, R6 and R7 are hydrogen or halogen, and X is oxygen.
Dependencies are inferred from the claim text.