abstract |
A hydrazide compound of formula (1): ** Formula ** where R3 represents a fluorine atom, a chlorine atom, a bromine atom, a methyl group, an ethyl group or a hydrogen atom, R5 and R6 they are the same or different from each other and each represents a methyl group or a hydrogen atom, and R4 represents a C2-C6 alkyl group, for use in the control of animal ectoparasites, said use comprising applying the hydrazide compound to a animal. |