| abstract |
The invention relates to a composition active against mites, whitefly and thrips, which comprises, in addition to a liquid or solid inert carrier material, a benzoylurea compound of the general formula <IMAGE> wherein R1 is hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of chlorine, methyl and trifluoromethyl, R2 is an alkyl group having 2-4 carbon atoms or a cycloalkyl group having 3 or 4 carbon atoms, R3 is a hydrogen atom or represents 1-3 substituents which are selected from the group consisting of halogen, and alkyl, alkoxy, haloalkyl and haloalkoxy having 1-4 carbon atoms, R4 and R5 are both fluorine atoms, or wherein R4 is a chlorine atom and R5 is a hydrogen atom, and X is an oxygen or sulphur atom. The composition may be used in a dosage of 10 to 5000 g of active substance per hectare. The invention further relates to pharmaceutical compositions comprising the above compounds. Finally the invention relates to new benzoylurea compounds and to the preparation thereof. |