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1978年6月我们从武威黄羊镇杏树上采回罹病致死的天幕毛虫幼虫,在室内分离出一株产晶体毒素的芽孢杆菌,我们称之为天杆菌。后经形态、培养性状观察及生理生化反应、酯酶分析与血清学反应鉴定:该菌为苏云金杆菌蜡螟变种 Bacillus thuringiensis Var gall-eriae。这说明蜡螟杆菌在我省河西走廊亦有分布,且有不同宿主,而且在内陆干旱气候条件下,可使天幕毛虫等害虫罹病致死。两年来,我们应用蜡螟杆菌对十多种害虫进行了室内和田间药效试验,以及在50多亩大田对菜青虫进行防治示范,结果表明:对菜青虫有显效,对
In June 1978, we collected the deadly Arial caterpillar larvae from the apricot tree in Huangyang Town, Wuwei, and isolated a strain of Bacillus producing crystalline toxins indoors, which we call the genus Bacillus. After the morphological, cultural traits observed and physiological and biochemical reactions, esterase analysis and serological identification: Bacillus thuringiensis var Gall-eriae Bacillus thuringiensis var. This shows that there is also a distribution of B.c. in Hexi Corridor in our province with different hosts. In addition, in the arid climate of inland, it can kill and kill pests such as Aria caterpillars. In the past two years, we have conducted indoor and field efficacy trials with more than ten kinds of pests against Baptized with Baptized Bacteria, and demonstrated prevention and treatment of Pieris rapae in more than 50 mu of fields. The results showed that: