Resistance Mechanisms to Acetamiprid in German Cockroach Blattella Germanica (L.) (Blattodea: Ectobiidae)

Abstract

The spectrum of resistance to various groups of insecticides of several laboratory strains of German cockroach, Blattella germanica, from different geographically remote regions of Russia is presented. Studies have been carried out on the synergistic effects of desynchronized use of piperonyl butoxide (PBO), S, S, Stributylphosphorotrithioate (DEF), diethyl maleate (DEM) and verapamil (Ver) in combination with 5-7 concentrations of acetamiprid to determine possible resistance mechanisms. The studies were performed on three strains (M1, Moscow; OBN, Obninsk; U1, Yekaterinburg) in comparison with the standard laboratory susceptible strain S-NIID. Acetamiprid resistance was reduced using PBO, DEF, and Ver which indicates the involvement of P450 monooxygenases, esterases, and ABC transporters in this phenomenon. DEM turned out to be less effective. Insecticide multi-resistance is widespread in German cockroaches in Russia.