关键词: 蚊虫, 抗药性, 杀虫剂

Abstract: Objective To discuss the insecticide resistance status of mosquitoes in different areas and different periods.Methods WHO bio-assay and distinguishing dosage method.Results The pyrethroid resistance of different areas and different periods was high at large,the propoxur resistance was high at large dosage area,and Acetophenate resistance emerged in some area.In some area,there was still high DDT resistance where it had been ceased use for several years,and the Acetophenate resistance level in some area was close to sensitive strain's.Conclusion The resistance of mosquitoes of different insecticide had obvious discrimination in different regions,and it was related to the use frequency.The use of single insecticide for a long time will raise the resistant level,and reasonable use of insecticides is needed.