白僵菌对农林害虫具有良好的防治效果,但受自然环境条件影响较大,特别是在较低湿度情况下,防治效果欠佳。我们通过对白僵菌的诱变育种,选出了14、24号等菌株,不仅在固体发酵中孢子含量、毒力方面都超过原始菌种,在室内试验及林间应用上都显示出耐较低湿度的特点。 Beauveria bassiana on agriculture and forestry pests have a good control effect, but under the influence of natural environmental conditions, especially in the case of lower humidity, the control effect is not good. Through the mutagenesis of Beauveria bassiana, we selected strains 14 and 24, which not only surpassed the original species in spore content and virulence in solid fermentation, but also showed resistance to both indoor and forest applications Low humidity characteristics.