Novel substituted N-tetrafluorophenyl-N-'-halobenzoylureas of the formula ##STR1## wherein R.sub.1 is fluorine or chlorine, and R.sub.2 is hydrogen, fluorine or chlorine; processes for producing these compounds, as well as compositions containing them, for combating pests, particularly insects which infest plants and animals. The novel compounds also exhibit an action inhibiting eating in the case of insects damaging plants by eating, and these compounds have favorable ovicidal and ovolarvicidal properties.
这段文字的意思是:
本发明提供了一种替代性的N-
四氟苯基-N-'-卤代苯甲酰
脲化合物,其
化学式为##STR1##其中R.sub.1是
氟或
氯,R.sub.2是氢、
氟或
氯。本发明还提供了制备这些化合物的方法,以及包含它们的组合物,用于对抗害虫,特别是侵害植物和动物的昆虫。这些新化合物还表现出抑制昆虫通过摄食破坏植物的作用,并且这些化合物具有良好的杀卵和杀幼虫的特性。