主要微生物的利用1.白僵菌的利用黄僵病是在赤松毛虫自然种群流行的代表的硬化病,特别在高密度时经常流行。由于死虫体表形成分生孢子而传染,系经皮感染。日高(1933年)为了把它应用于防治,使幼虫发病死亡,将虫体表面形成的分生孢子,使之在赤松毛虫发生的松林内飞散,由此导致黄僵病蔓延,试验获得成功。也可用固体培养基代替病死虫得分生孢子使之飞散。这里不采用散布孢 Utilization of major microorganisms 1. Utilization of Beauveria bassiana is a scleroderma that is prevalent in the natural population of Civet catnavora, and is often endemic at high densities. As dead body surface formation of conidia and infection, Department of transdermal infection. Hidaka (1933) In order to apply it to prevention and control, the death of larvae, conidia formed on the surface of the parasites so that pine caterpillars occurred in pine forest fly, which led to the spread of yellow stiff disease, the test was successful . Solid medium can also be used to replace dead diseased conidia to fly. Spray spores are not used here