1,3,5-Triazapenta-1,4-dienes of the formula ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 represents hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl or cyano, and R.sub.4 represents C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by halogen, a process for their manufacture and their use in pest control.
公式为##STR1##的1,3,5-三氮杂五烯,其中R.sub.1,R.sub.2和R.sub.3分别表示氢,卤素,C.sub.1-C.sub.4烷基,C.sub.1-C.sub.4烷氧基,三
氟甲基或
氰基,而R.sub.4表示未取代或被卤素取代的C.sub.1-C.sub.4烷基,其制造过程及其在害虫控制中的应用。