| 摘要 |
<p>The invention relates to novel substituted N-ethynyl-phenyl-N'-benzoylureas of the formula wherein R1 is fluorine, chlorine, bromine, methoxy or methyl, R2 is hydrogen, fluorine, chlorine, bromlne. methoxy or methyl, and n is 0 or 1, whilst the ethynyl radical -C?CH is in the 3- or 4-position, to methods of obtaining these compounds and to compositions containing them for use in pest control, especially for controlling insects that attack plants and animals. The novel compounds have a pronounced ovolarvicidal, especially ovicidal, activity against plant-destructive insects.</p> |
