N-(Optionally substituted 1,3-dioxolan- or dioxan-2-ylmethyl)-N-alkyl, alkenyl, or alkynyl-2,2-dichloroacetamides
AssigneePPG Industries, Inc.
InventorJay K. Rinehart
Life of this patent
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Abstract
Disclosed are antidotal compounds for use with active thiocarbamate and/or chloroacetanilide herbicides to control weeds without affecting crops such as corn and soybeans. Compositions of the antidote and the active thiocarbamates and/or chloroacetanilides are also disclosed.
Claims10
A composition containing:
- (a) a herbicidally effective amount of N-dialkyl thiocarbamate;
- and
- (b) an antidotally effective amount of a compound represented by the formula:
- ##STR10## wherein:
- R is ethyl, propyl, 1-methylethyl, 2-propenyl, butenyl, 2-methyl-2-propenyl, 2-propynyl or 1,1-dimethyl-2-propynyl;
- R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or methyl;
- and
- n is 0 or 1.
In a method of controlling weed growth among crops wherein a herbicidally effective amount of N-dialkyl thiocarbamate herbicide is used to control said weeds, the improvement residing in controlling said
- weeds with said S-alkyl thiocarbamate herbicide in the presence of an antidotally effective amount of an antidotal compound represented by the formula:
- ##STR11## wherein:
- R is ethyl, propyl, 1-methylethyl, 2-propenyl, 2-butenyl, 2-methyl-2-propenyl, 2-propynyl or 1,1-dimethyl-2-propynyl;
- R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or methyl;
- and
- n is 0 or 1
- to reduce the phytotoxic effect of the S-alkyl thiocarbamate on said crops.
A composition containing a herbicidally effective amount of S-ethyl diisopropyl thiocarbamate herbicide and an antidotally effective amount of N-(1,3-dioxolan-2-ylmethyl)-N-(2-propenyl)-2,2-dichloroacetamide.
In a method of controlling weed growth in a corn crop wherein a herbicidally effective amount of S-ethyl diisopropyl thiocarbamate herbicide is used to control the weed growth, the improvement residing in controlling said weed growth with said S-ethyl diisopropyl thiocarbamate in the presence of an antidotally effective amount of N-(1,3-dioxolan-2-ylmethyl)-N-(2-propenyl)-2,2-dichloroacetamide to reduce the phytotoxic effect of the S-ethyl diisopropyl thiocarbamate on the corn.
Dependencies are inferred from the claim text.