Conditioning of herbicidal chloroacetamides
AssigneeSandoz Ltd.
InventorJohn M. Foster
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Abstract
There is provided a method for protecting crop plants from phytotoxic injury caused by a chloroacetamide herbicide by co-applying a non-phytotoxic, conditioning effective amount of a benzothiadiazinone derivative. The method is particularly effective in protecting dry edible beans from phytotoxicity when dimethenamid is applied postemergence.
Claims16
A method for reducing the phytotoxicity of a herbicidally effective amount of a thiopheneamide compound on a crop plant comprising co-applying to the crop plant or locus where herbicidal control is desired a non-phytotoxic, conditioning-effective amount of a conditioner compound having the formula (B) ##STR4## wherein R is C.sub.1-6 alkyl and a herbicidally active thiopheneamide of formula A ##STR5## wherein R and R.sup.2 are independently H, Cl, Br, F, C.sub.1-4 alkoxy;
- R.sup.1 is H, Cl, Br, Cl, or C.sub.1-4 alkoxy;
- R.sup.3 is C.sub.1-8 alkyl;
- and A is CH.sub.2, CH.sub.2 --CH.sub.2 or a monomethylated derivative thereof, wherein the weight ratio of the thiopheneamide compound to the conditioner compound is in the range of 0.1:1.0 to 30:1 and the thiopheneamide compound is applied at a range of 0.01 to 8.0 kg/ha and the conditioner is applied at a range of 0.01 to 10.0 kg/ha.
A method for protecting crop plants from injury caused by a herbicidally effective amount of a thiopheneamide of formula A ##STR6## wherein R and R.sup.2 are independently H, Cl, Br, F, C .sub.1-4 alkyl and C .sub.1-4 alkoxy;
- R.sup.1 is H, Cl, Br, F, or C .sub.1-4 alkyl;
- R.sup.3 is C .sub.1-8 alkyl;
- and A is CH.sub.2, CH.sub.2 --CH.sub.2 or monomethylated derivative thereof comprising co-applying a non-phytotoxic, effective conditioning amount of 3-isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide and the thiopheneamide compound, wherein the thiopheneamide and conditioner are applied at a weight ratio of 15:1 to about 1:15.
Dependencies are inferred from the claim text.