| 摘要 |
Heterocyclic compounds of the formula <IMAGE> I wherein A is a group <IMAGE> and R1, R2, R3, R4, R5 and X are as defined hereinafter, process for their preparation, as well as pesticidal compositions containing one or more of these compounds as the active ingredient and methods for using the pesticidal compositions for the control of pests, particularly insects, mites and nematodes, are described.
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