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鉴于防制幼虫是室内滞留喷洒防制疟疾的一种辅助措施,作者对双硫磷杀灭冈比亚按蚊幼虫的效果进行了实验室和现场观察。实验室试验:用冈比亚按蚊的三龄幼虫,测定双硫磷和其他9种杀虫剂的LC_(95)。在10种杀虫剂中,LC_(95)最低的是毒死蜱,其次为Ciba 14814(OMS—1290)、倍硫磷及双硫磷。虽然双硫磷的毒力在10种杀虫剂中占第4位,但由于它对哺乳动物的毒性小,所以选用于现场试验。
In view of the fact that control of larvae is an adjunct to indoor malaria spray control, the authors conducted laboratory and field observations of the effectiveness of diphosphate in killing Anopheles gambiae larvae. Laboratory tests: LC_ (95) of the third instar larvae of the Anopheles gambiae for determination of diphtheria and nine other insecticides. Of 10 insecticides, the lowest LC_ (95) was chlorpyrifos, followed by Ciba 14814 (OMS-1290), fenthion and diphtheria. Although the virulence of terephostide is the 4th among the 10 pesticides, it has been selected for field testing due to its low toxicity to mammals.