INSECTICIDAL AND MITICIDAL COMPOSITION HAVING IMPROVED LIGHT STABILITY

摘要

PURPOSE:To prepare an economical insecticidal and miticidal agent having excellent light stability and sufficiently prolonged action, by adding a specific amount of a specific light stabilizer such as a benzophenone derivative to a pyrethroidal compound. CONSTITUTION:The objective insecticidal and miticidal composition is prepared by adding a benzophenone derivative of formula I (R10 is methyl or octyl), a triazole derivative of formula II (R11 and R13 are t-amyl; R12 and R14 are H, etc.) or a substituted acrylonitrile compound of formula III (R is ethyl or isoamyl) as a light stabilizer, to one or more pyrethroidal compounds of formula IV[Y is group of formula V (Z is alkyl; Y is alkyl or alkoxy; n is 0-3), etc.]. The amount of the light stabilizer is =10wt%, preferably =50wt% based on the pyrethroidal compound.