| 摘要 |
The insecticide carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate) is combined with an organophosphorus additive of the formula <IMAGE> in which R1 is C1-C4 alkyl, R2 is C1-C4 alkyl, R3 is C1-C4 alkylene, X is oxygen or sulfur, and n is zero or one, for application to soil where previous applications of carbofuran have resulted in successive decreases in the insecticidal activity of carbofuran. The lost activity of the carbofuran is thereby restored.
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