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“7216”杀虫菌是湖北省天门县微生物站于1972年春,从越冬红铃虫虫体中分离出的一株产半孢晶体毒素的芽孢杆菌,经一些地区近年试验示范,对棉铃虫、粘虫等17种农林害虫有较好的防治效果,其药效相当于或优于防治这些害虫的常用化学农药滴滴涕、六六六。目前全国已有23个省、市、自治区示范推广,防治面积近百万亩次。一、形态及培养特征“7216”菌是一株产半孢晶体毒素的芽孢杆菌,具有苏云金杆菌群所共有的形态特征,据湖
“7216” insecticide is a strain of Bacillus that produces spore toxin produced in the spring of 1972 in the spring of 1972 in Hubei Province. It has been tested in some areas in recent years. Armyworms and other kinds of pests and other 17 kinds of forest pests have better control effect, its efficacy is equivalent to or better than the control of these pests commonly used chemical pesticides DDT, 666. At present, there are 23 provinces, municipalities and autonomous regions across the country for demonstration and promotion, covering an area of nearly 1 million mu. First, the morphology and culture characteristics of “7216” bacteria is a strain of spore toxin produced by Bacillus spores, Bacillus thuringiensis flora has the common morphological characteristics, according to the lake