Method of combating termites.

摘要

This invention provides a method of combating termites at a locus, which comprises treating the locus e.g. soil or timber with an acyl urea of the formula wherein one substituent X is a halogen atom or a methyl group and the other is a halogen atom, a hydrogen atom or a methyl group, and each of R<1>, R<2> and R<3> independently represents a hydrogen or fluorine atom; the use of acyl ureas of formula I for combating termites; and compositions for protecting timber against termite attack.