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目的探讨一种灭蚊幼装置的灭蚊效果,为进一步完善和推广灭蚊幼的物理防制方法提供依据。方法把蚊幼装在100mL分装瓶,创造隔绝空气的条件,观察2、3、4龄致倦库蚊和白纹伊蚊幼虫和蛹的死亡时间;用空矿泉水瓶制作灭蚊幼装置,并对灭蚊幼效果进行观察分析。结果致倦库蚊和白纹伊蚊的蛹和4龄幼虫在隔绝空气,5h内均死亡,致倦库蚊的2、3龄幼虫在36h,白纹伊蚊的3龄幼虫在8h才100.0%死亡。对200只2龄蚊幼3次实验(另设对照组),致倦库蚊和白纹伊蚊幼虫杀灭率分别为99.8%和86.9%,白纹伊蚊的羽化和逃逸较多。结论灭蚊幼装置可有效杀灭蚊幼,应进一步优化灭蚊幼装置结构,研究适用场所,推广灭蚊幼的物理防制方法。
Objective To explore the mosquito killing effect of a mosquito control device and provide the basis for further improving and promoting the method of physical control of mosquito control. Methods The mosquito larvae were installed in 100 mL aliquots to create air-insulated conditions. The larvae and pupae of 2, 3 and 4-year-old Culex pipiens pallens and Aedes albopictus were observed to die. Mosquito-killing devices were prepared with empty mineral water bottles, The effects of mosquito killing were observed and analyzed. Results The pupae and fourth instar larvae of Culex quinquefasciatus and Aedes albopictus died in 5 h after air isolation. The 2nd and 3rd instar larvae of Culex quinquefasciatus were 36h and 100.0 %death. The killing rates of Larvae of Culex quinquefasciatus and Aedes albopictus were 99.8% and 86.9%, respectively, for three of 200 200-day-old mosquitoes. The emergence and escape of A. albopictus were more. Conclusion The mosquito-killing device can effectively kill mosquito larvae. The structure of mosquito-killing larvae should be further optimized, the applicable sites should be studied, and the physical control methods should be promoted.