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白僵菌菌种在人工繁殖条件下易于退化,如何解决这个问题呢?毛主席教导我们:“外因是变化的条件,内因是变化的根据,外因通过内因而起作用。”桃源县“九二○”厂遵照毛主席这一教导,进行反复分析研究,认为白僵菌退化,是与白僵菌在人工培养的过程中,培养基、环境等因素有关系,于是用松毛虫尸体作培养基进行试验。实践证明:用松毛虫作培养基,菌丝生长旺盛,孢子含量高,生活力强。其优越性是:
Beauveria bassiana strains easily degenerate under artificial breeding conditions, how to solve this problem? Chairman Mao taught us: “External factors are the conditions for change, internal factors are the basis for change, and external factors work through internal factors.” Taoyuan County “ ○ ”Plant in accordance with the guidance of Chairman Mao, repeated analysis and research that Beauveria bassiana degradation is with Beauveria bassiana in the process of artificial cultivation, the media, the environment and other factors, so with the caterpillar body as a medium experimenting. Practice has proved that: with pine caterpillars as a medium, hyphae vigorous growth, high spore content, strong vitality. Its superiority is: