There are disclosed 1-[4-(halophenoxy)phenoxy]-4-pentines of formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other chloro or fluoro and one of R.sub.1 and R.sub.2 is also hydrogen, a process for their preparation and intermediates for their preparation, the use of these compounds in pest control, and pesticidal compositions which contains a compound of formula I as active component. The preferred field of use is ovicidal control of pests.
公开了式子为##STR1##的1-[4-(卤代
联苯氧基)
联苯氧基]-4-戊炔,其中R.sub.1和R.sub.2各自独立地是
氯或
氟,且R.sub.1和R.sub.2中的一个也是氢,其制备过程和制备中间体,这些化合物在害虫控制中的使用以及包含式I化合物作为活性成分的
杀虫剂组合物。首选的使用领域是对害虫的卵杀控制。