Phenylureas

摘要

Novel substituted N-3-(pyridyl-2-oxy)phenyl-N'-benzoylureas of the formula <IMAGE> in which R1, R2 and R3 independently of one another denote hydrogen, methyl, fluorine, chlorine or bromine; R4 denotes the radical -CHF2 or a C2-C10-alkyl radical which is uniformly or non-uniformly substituted by 1 to 21 fluorine, chlorine or bromine atoms, a process and starting material for the preparation of these compounds and compositions containing them for use in pest control, in particular for the control of insects which attack plants and animals. The novel compounds have especially high ovolarvicidal and ovicidal activity against insects which are injurious to plants.