Lindane resistance in Dermestes maculatus Deg. (Coleoptera: Dermestidae)

A discriminating dose test technique has been developed for the detection of lindane resistance in strains of Dermestes maculatus Deg. Using susceptible strains and a laboratory-induced resistant strain as standards, resistance to lindane was found in 12 out of 15 strains of D. maculatus tested. These were laboratory strains from Australia, the U.S.A., the Gambia and the United Kingdom, and strains found on cargoes imported into the United Kingdom from Africa, India, Pakistan, the Lebanon, the U.S.A. and Hong Kong.