UREA DERIVATIVES, PROCESSES FOR THEIR PREPARATION, PESTICIDAL COMPOSITIONS CONTAINING THEM AS ACTIVE INGREDIENTS, AND METHODS FOR THEIR USE

摘要

Urea derivs. of formula (I) are new: (A is naphthylthio, tolylthio, or X,Y-substd.naphthyloxy, where X and Y are each H, Cl or Br; Z is H or Cl; Z1 is Cl or F; Z2 is H, Cl or F). Cpds. (I) are insecticides esp. active against mosquitoes, caterpillars, beetles and bettle larvae.