| 摘要 |
Novel N-(4-alkenylthio)-phenyl-N'-benzoylureas of the formula <IMAGE> wherein R1 is a C3-alkenyl group, or a C3-alkenyl group which is mono- or disubstituted with chlorine or bromine, R2 and R3 independently of one another are each hydrogen or chlorine, R4 is hydrogen, fluorine or chlorine, and R5 is fluorine or chlorine; processes for producing these compounds, and also compositions containing the compounds, for use in combating pests, particularly in combating insect pests in the field of plant protection, and combating ectoparasites. The compounds have high ovicidal activity.
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