我所1978年从杉梢小卷叶蛾幼虫虫尸上分离出一种属苏云金杆菌类的E_(19)号菌株。前几年,采用了浅层液体培养和浅层固体培养,生产的菌粉含菌数低,易污染杂菌,生产不稳定,为此我们参照部分关于半固体培养的资料,结合自己的生产实际,进行了生产,暂名:“半固体生产”。此方法生产的菌粉菌数含量高,生产易控制。为了检验菌粉的生产质量 In 1978, we isolated a strain of Bacillus thuringiensis strain E_ (19) from the larvae of cinerea lanceolata. A few years ago, the use of shallow liquid culture and shallow solid culture, the production of bacteria with low bacterial count, easy to contaminate bacteria, production instability, for which we refer to some of the information on semi-solid culture, combined with their own production In fact, carried out production, tentative name: “semi-solid production.” This method produces a high content of bacterial powdery bacteria, easy to control the production. In order to test the quality of bacterial powder production