Preemergence weed control in selected crops
AssigneeChevron Chemical Company
InventorAhmad Omid
Life of this patent
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Abstract
A method for providing preemergent weed control in large seeded crops and certain medium and small seeded crops. The method comprises the preemergent application of certain 5-alkylamino-3-oxo-2-optionally substituted phenyl-4-(3-trifluoromethylphenyl)-4,5-dihydrofurans to control weeds in such crops.
Claims17
A method for providing preemergence herbicidal weed control in a crop selected from the group consisting of cotton, peanuts, peas, and sorghum which comprises applying to the habitat soil of said crop, within 7 days before the planting of seeds of said crop up to 3 days after planting, an amount which is effective to destroy or suppress weeds and is safe with respect to said crop, of a compound or mixture of compounds selected from the group having the formula:
- ##STR5## wherein R is phenyl;
- R.sup.1 is methyl or ethyl;
- and compatible salts thereof.
A method for providing preemergence herbicidal weed control in a crop selected from the group consisting of peanuts and non-western cotton which comprises applying to the habitat of said crop within 7 days before planting seeds of said crop up to 3 days after planting said crop, an amount which is effective to suppress or destroy weeds and is safe with respect to said crop, of a compound, or mixture of compounds, selected from the group having the formula:
- ##STR6## wherein R.sub.1 is methyl or ethyl;
- and compatible salts thereof.
Dependencies are inferred from the claim text.