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1972年4月我们从越冬红铃虫中分离筛选出一株产生伴孢晶体的芽孢杆菌“7216”杀虫菌。五年来,由于县委加强领导,湖北省、荆州地区、天门县科委及有关单位的大力支持,使“7216”杀虫菌的研究、推广工作不断取得新的进展。“7216”杀虫菌是苏芸金杆菌类群H3型菌中一个新的生物型新变种。在本省及湖南、河北、河南、陕西、江西、江苏、山西、内蒙、新疆、广东、云南、黑龙江等23个省、市、自治区,100多万亩次的防治多种农林害虫试验示范结果表明,该菌对棉
In April 1972, we isolated and identified a strain of Bacillus “7216” that produces conidia crystals from the overwintering pink bollworm. In the past five years, thanks to the strengthening of the leadership of the county government, strong support from the Hubei Provincial Committee, Jingzhou Prefecture, Tianmen County Science and Technology Commission and relevant agencies, new progress has been continuously made in the research and promotion of “7216” insecticidal bacteria. The “7216” insecticidal bacteria is a new biological variant of the genus H3 in Bacillus thuringiensis. Demonstration results of a series of experiments on the prevention and control of various pests of agriculture and forestry in the province and in 23 provinces, cities and autonomous regions including Hunan, Hebei, Henan, Shaanxi, Jiangxi, Jiangsu, Shanxi, Inner Mongolia, Xinjiang, Guangdong, Yunnan and Heilongjiang provinces The bacteria on cotton