Abstract:

Objective To examine the effect of JWX-V thermal fogging insecticide against mosquitoes, flies, and cockroaches. Methods The insecticide was diluted to prepare 1% oil formulation and applied by aerosol spraying at doses of 1, 2, 3, and 4 ml/m³ in the laboratory simulation field. After 30, 60, 90, and 120 min of treatment, the knockdown and mortality of the three kinds of insects were examined. For field test, 3 ml/m³ oil formulation was applied by aerosol spraying for 60 min, and the mortality of the insects was then measured. Results In the laboratory test, the effect of the insecticide against the insects was proportional to the dose of drug and the duration of action. Under the action of 3 ml/m³ insecticide applied by aerosol spraying for 60 min, the 60 min knockdown rates of the three kinds of insects were all >95% and their 24 h mortality rates were 100%. In the field test with 3 ml/m³ insecticide applied by aerosol spraying for 60 min, the average 60 min mortality rates of mosquitoes and flies were 100% and 96.07% respectively, and the average 24 h mortality rate of cockroaches was 95.06%. Conclusion JWX-V thermal fogging insecticide has a good fumigant effect lethal to mosquitoes, flies, and cockroaches.

Key words: JWX-V hot-spray insecticide, Laboratory simulation, Field test, Insecticidal effect

摘要：

目的 观察JWX-V型热烟雾杀虫剂对蚊、蝇、蜚蠊的药效。方法 将该制剂稀释成1%油剂后,实验室模拟现场按1、2、3、4 ml/m³剂量喷烟分别作用30、60、90、120 min,观察3种试虫击倒及死亡情况;现场按3 ml/m³剂量喷烟作用60 min,观察试虫死亡情况。结果 实验室对试虫的药效与药物剂量及作用时间呈正比,在按3 ml/m³剂量喷烟作用60 min时,3种试虫60 min 击倒率均>95%,24 h死亡率均为100%;现场按3 ml/m³剂量喷烟作用60 min,对蚊、蝇60 min平均杀灭率分别为100%和96.07%,对蜚蠊24 h平均杀灭率为95.06%。结论 JWX-V型热烟雾杀虫剂对蚊、蝇、蜚蠊有较好的熏杀作用。

关键词: JWX-V型热烟雾杀虫剂, 实验室模拟现场试验, 现场试验, 药效