The invention relates to pesticidal compositions which contain 2-(3-pyridyl)-1,3,4-thiadiazoles or 5-(3-pyridyl)-1,2,4-thiadiazoles of the formula ##STR1## wherein R.sub.1 is ##STR2## and each of R.sub.2 and R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl, to the novel compounds of the formula I themselves, to the preparation thereof, and to the use thereof in pest control.
本发明涉及一种
杀虫剂组合物,其包含式为##STR1##的2-(3-
吡啶基)-1,3,4-
噻二唑或5-(3-
吡啶基)-
1,2,4-噻二唑,其中R.sub.1为##STR2##,R.sub.2和R.sub.3中的每一个均为氢或C.sub.1-C.sub.4烷基,以及该式I的新型化合物,其制备方法和在害虫控制中的应用。