This invention relates to the preparation and use of a phenylpyrazole derivative. Specifically, this invention relates to an N-substituted phenylpyrazole derivative of formula (I) or its isotopically labeled compound, or its optical isomers, geometric isomers, tautomers, or mixtures of isomers, or its agronomically acceptable salt, and the use of said compound in the preparation of insecticides for
pest control. Such compounds can achieve better
pest control effects at lower dosages, particularly against pests of the orders Lepidoptera, Coleoptera,
Homoptera,
Hemiptera, Thysanoptera, Isoptera, Diptera,
Hymenoptera,
Trichophyton, Pseudocoptera,
Orthoptera, Blattodea, Silicaria, Acari, and Nematodes.