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将白僵菌[Beauveria bassiana (Bais)Vuill]孢子粉与油剂混合,用飞机或地面超低容量喷雾,大面积防治松毛虫已取得了较好的效果。防治实践表明,孢子粉比混合粉剂便于包装、贮藏和运输,且防治成本低。我所1979年开始试验用机械分离法从白僵菌原粉中提取孢子粉。经过两年的试验,于1981年春生产出第一批含量为1,200亿/克的孢子粉。同年2月由省林业厅组织在阳江县用这批产品进行了飞机和地面超低容量喷洒白僵菌
Mixing Beauveria bassiana (Bais) Vuill spore powder with the oil agent and spraying it with the ultra-low capacity of aircraft or ground, the large-scale control of pine caterpillars has achieved good results. Prevention and control practices show that spore powder is easier to package, store and transport than the mixed powder, and the prevention and treatment cost is low. In 1979, I started experimenting with mechanical separation to extract spore powder from Beauveria bassiana original powder. After two years of testing, the first batch of spore powder with a content of 120 billion pieces per gram was produced in the spring of 1981. In February the same year by the Provincial Forestry Department organized in Yangjiang County with these products for aircraft and ground ultra-low-capacity spray Beauveria bassiana