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作者于1981年间发现一种表面活性剂(Aerosurf 66E2)有防制蚊虫幼虫的速效,它能自行扩散形成一单层薄膜,其作用方式与当前所用的杀幼虫剂迥然不同。该化合物对蛹也有较大作用,LC_(50)为0.4ppm,而对四龄幼虫为24ppm。在田间试验中,将表面活性剂施用于清洁和无植物生长的水塘,剂量为0.5~1 gal/acre,在处理后2天内,跗斑库蚊幼虫的死亡率达90~95%,这个高效率一直维持2周之久。在以上初步试验后,又用该活性剂在充满有机质的奶牛场污水塘进行
The authors discovered in 1981 that a surfactant (Aerosurf 66E2) had the effect of controlling mosquito larvae and that it self-diffused to form a monolayer film that behaved in a very different way than the larvicides currently used. The compound also had a greater effect on pupae, with LC 50 (50) of 0.4 ppm and 4th instar larvae of 24 ppm. In field trials, surfactants were applied to clean and vegetative ponds at doses of 0.5-1 gal / acre. The mortality of M. cucumerina larvae reached 90-95% within 2 days of treatment, High efficiency has been maintained for 2 weeks. After the above initial test, the active agent is again used in a sewage pond filled with organic matter