abstract |
Compounds of the formula (I) where X is chlorine or bromine; Y is chlorine or trifluoromethyl and A and B mean hydrogen or methyl, being precise, that one of the radicals A or B means methyl; use of compounds of formula I to combat insects or acarids and to treat, control, prevent or protect animals against infestation or infection by parasites, and compositions comprising compounds of formula I. |