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荆菌二号是湖北荆州地区农科所1962年从(忄罗)病死亡的棉金钢钻幼虫体中分离获得的一株杀虫细菌。1973年经武汉大学生物系杀菌鉴定组和武汉微生物农药厂联合鉴定,按Hecimpel检索表,荆菌二号属苏芸金杆菌蜡螟变种(Bacillus thuringiensis var. galleriae)血清型H_5、酯酶型5 galleriae。荆菌二号产生β—外毒素能力高于目前国内苏芸金杆菌其它各品系。 荆菌二号不仅对菜青虫、小菜蛾、稻苞虫、稻纵卷叶螟、稻螟蛉、棉小造桥虫、棉大卷叶虫、刺蛾等较敏感性害虫具有很好的毒杀效果;而且对蛀食性的三化螟、棉铃虫、红铃虫,只要适当提高菌液使用度和卵盛孵初期及时用药,也能取得良好防效。
Jing 2 is a strain of insecticidal bacteria isolated from larvae of cotton-paddy larvae that died of (Miluo) disease in Jingzhou, Hubei Province in 1962. In 1973 by Wuhan University Department of Biology germicidal identification group and Wuhan microbial pesticide plant joint identification, according to Hecimpel search table, the second strain of Bacillus thuringiensis is Bacillus thuringiensis var. Galleriae serotype H_5, esterase 5 galleriae. Rhizoctonia second generation of β-exotoxin capacity than the current domestic Bacillus thuringiensis other strains. Jing 2 not only for cabbage caterpillar, diamondback moth, rice shellworm, rice leaf roller, rice borer, cotton small bridge, cotton leaf roller, moth and other more sensitive insects have very good poison Effect; but also for the borer borer, cotton bollworm, pink bollworm, as long as the proper use of bacteria and eggs in the early stages of timely administration, but also can achieve good control effect.