白僵菌孢子粉作为生物农药制剂,防治马尾松毛虫,在我省已普及使用多年,并取得较好的治虫效果。但孢子粉在常温条件下贮藏时间较长,则开始局部出现结块现象,孢子发芽率明显下降。所以,产品一般在当年冬季生产,次年用于对越冬代松毛虫幼虫防 Beauveria bassiana spore powder as a biological pesticide preparation, prevention and control of Masson pine caterpillars, has been widely used in our province for many years, and achieved better pest control effect. However, spore powder stored at room temperature for a long time, began to local caking, spore germination rate decreased significantly. Therefore, the product is usually produced in the winter of the year, the following year for the protection against overwintering pine caterpillar larvae