关键词: 媒介, 抗药性, 对策, 杀虫剂

Abstract: It was reported that the multiresistance appeared in several important vectors, some strains of vectors had developed high level resistance to some insecticides.The individual esterase activity filter paper test method and the PCR technical was used for monitoring resistance of Musca domestica. The results showed there were positive relativity between esterase activity and resistance ratio to DDVP or fenobcarb. The inhibitory frequency of DDVP or fenobcarb to esterase activity in the susceptible population was evidently higher than that of the DDVP or fenobcarb resistant strains. There was positive relativity between the amplificative frequency of specific resistant alleles gene in individual Musca domestica and resistance ratio to deltamethrin. There was a complete loss of flushing-out action for permethrin to resistant strain of cockroach, which had a high level resistance (RR＞10 at LT₅₀). Control failure occurred in the restaurant with residual spread by deltamethrin SC at the doses of 30-40mg a.I/m² for cockroaches which had a high level resistance (RR＞10 at LT₅₀). According to the resistant status in Guangdong province, measures to counteracting resistance were integrated management mainly with environmental management, development of resistant monitor method, development of new pesticides, new formulation, and new treatment method, and rational application of insecticides.The scientific research achievement was application of emergency disease vector control, development of health cities.