| 摘要 |
Herbicidally active thiocarbamates are employed in combination with certain unsaturated aryl sulfides, sulfoxides or sulfones having the formula <IMAGE> in which R4 is hydrogen, halogen, C1-C6 alkyl or C1-C6 alkoxy; R5 is C2-C6 haloalkenyl or C2-C6 alkynyl; and n equals 0 or 2. In a typical application, the unsaturated aryl sulfide, sulfoxide or sulfone is included in sufficient quantity to lessen the rate of soil degradation of the thiocarbamate. As a result, the herbicidal effectiveness of the thiocarbamate is enhanced and prolonged, rendering a single application of the herbicide effective over a longer period of time.
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