Elevated esterase detection in insecticide resistant German cockroaches ( Dictyoptera : Blattellidae ) using modified Pasteur-Georghiou ' s filter

Five field populations of the German cockroach, Blattella gennanica (L.) (HangTuah, Melia 11, ChiliPadi I, Goldensand and TsimShaShui) were collected from several hotels and restaurants in Malaysia. Resistance levels, as determined by World Health Organization (WHO) glass jar method were moderate for carbamate insecticides (5.4 13.3) and low for pyrethroids… CONTINUE READING