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消灭蚊虫具有重大的意义。长期以来,使用化学药物灭蚊,取得了一定成绩,但由于蚊虫产生了抗药性,导致药效降低,而且污染环境,贻害人畜。近年来,国内外都在寻找灭蚊的新方法、新途径。美国Goldberg(1977)从以色列Negev蚊虫孳生地的池塘或河岸干土与湿土中分离出一种产生晶体的芽孢杆菌,对蚊幼虫毒性很高,后经法国de Barjac(1978)鉴定为苏芸金杆菌以色列变种,血清型14(Bacillus thuringiensis var. israelensis,H—14)。由于本变种具有毒杀各种蚊幼虫的高度毒力,近年来,法国、美国、苏联和我国已先后研制出工业生产的菌粉制剂。我们于1979年开始从武汉
Eliminating mosquitoes is of great significance. For a long time, some achievements have been made in the use of chemical drugs for mosquito control. However, due to the resistance of mosquitoes, the drug efficacy is reduced, and the environment is polluted and people and livestock are harmed. In recent years, both at home and abroad are looking for new ways and new ways to eliminate mosquitoes. In the United States, Goldberg (1977) isolated a crystal-producing Bacillus from ponds or riparian drylands and wetlands in the Negev mosquito breeding grounds in Israel. It is highly toxic to mosquito larvae and was identified as Su Yun by the French de Barjac (1978) Bacillus thuringiensis var. Israelensis (H-14). As this species has a high toxicity to kill all kinds of mosquito larvae, in recent years, France, the United States, the Soviet Union and China have already developed industrial production of powder formulations. We started from Wuhan in 1979