| 摘要 |
New diphenylmethane and diphenylthioether derivatives of the formula <IMAGE> (I) wherein R1 represents a C3-C5-alkenyl, C3-C5-chloroalkenyl or C3-C5-alkynyl radical, R2 represents a hydrogen atom or a methyl radical, and Y represents a sulphur atom or a methylene group, WHICH ARE EFFECTIVE AGAINST PESTS, PROCESSES FOR THEIR PRODUCTION, AS WELL AS COMPOSITIONS AND METHODS FOR THE CONTROL OF PESTS BY USE OF THE NEW DERIVATIVES AS ACTIVE SUBSTANCES ARE DESCRIBED.
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