利用白僵菌防治玉米螟在我省各地已取得显著效果,其防效相当于5%滴滴涕颗粒剂.而优于0.5%灵丹粉颗粒剂。为了提高白僵菌产品的数量和质量.我们进行了大池通风发酵培养白僵菌的试验。获得了成功。利用水泥大池,配1台鼓风机通风,5天内即可培养出200～300斤的白僵菌粉,每克菌粉含孢子量可达80～100亿个。 The use of Beauveria bassiana control corn borer throughout the province has achieved remarkable results, its control effect is equivalent to 5% DDT granules, while better than 0.5% Lingdan powder granules. In order to improve the quantity and quality of Beauveria bassiana, we carried out the experiment of ventilation and fermentation of Beauveria bassiana with large pool. Won the success. The use of cement pool, with a blower ventilation, 5 days to cultivate 200 to 300 pounds of Beauveria bassiana powder per gram of bacteria containing spores up to 80 to 10 billion.