An ester compound represented by the formula ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different and each represent a C.sub.1 -C.sub.6 alkyl group, or other specified groups, which may be optionally substituted with one or more halogen atoms; and R.sub.3 represents a pyrethroid acid residue (a group resulting from elimination of the carboxyl group from pyrethroid acid), and a pesticidal composition containing the ester compound as an active ingredient.
一种酯化合物,
化学式为##STR1## 其中R.sub.1和R.sub.2可以相同也可以不同,分别代表C.sub.1-C.sub.6烷基或其他指定基团,这些基团可以选择性地被一个或多个卤素原子取代;而R.sub.3代表拟
除虫菊酸残基(从拟
除虫菊酸中去除羧基而得到的基团),以及一种包含该酯化合物作为活性成分的
杀虫剂组合物。