关键词: 杀虫剂, 超低容量喷洒, 白纹伊蚊, 控制

Abstract: Objective To evaluate the field control efficiency against Aedes albopictus with 6% Miedeyou and 25% Pirimiphos methyl.Methods To apply these insectcides against Aedes albopictus with ULV sprayer in park,residential area,tyre cumulated site.The indexes for efficiency analying were human attacked,mosquito cage hanging and larva breeding.Results The RPI were 0,2.2 and 0 respectively in park,residential area and tyre piling up site contrasted with the control experiment 4 h after dealing with 6% Miedeyou Emulsifiable Solution.The effective maintained time varied in three trial fields,not more than 2 days in park,but more than 4 days in tyre piling up.More than 99% calibrated mortality of Aedes albopictus in cages were observed in three testing areas 24 h after the same trial.The rate of larva breeding after treated with 6% Miedeyou Emulisifiable was lower than control.The control efficiency times for Aedes albopictus after dealing with 25% rimiphos methyl was 48 h at the tyre cumulated site and the rate of larva was decline 50%,the control efficiency times for Aedes albopictus after dealing with 25%rimiphos methyl was 96 h at the residential area.Conclusion 6% Miedeyou emulsifiable solution and 25% Pirimiphos methyl can rapidly kill the adult and larva of Aedes albopictus in field with ULV sprayer.The methods and technology can be provide to the victor emergency control.