白僵菌(Beauveria bassiana)防治农林害虫,在国内外早已被人们所重视。我省自1971年以来,唐山、承德两个地区的不少单位,采取了这一除虫方法。对制剂的需要,日益增多。而菌种是影响制剂质量的物质基础。目前,我省所用现有菌种状况,已不能满足生产实际的需要。因此,通过人工诱变选育更为高效的菌株,是应用白僵菌防治松毛虫工作的迫切要求。 Beauveria bassiana (Peauveria bassiana) to control agricultural and forestry pests, people have long been valued at home and abroad. Since 1971 in our province, many units in Tangshan and Chengde districts have taken this pest-killing method. The need for preparations is increasing. The strain is the material basis of the quality of the preparation. At present, the status of the existing bacteria used in our province can no longer meet the actual needs of production. Therefore, the selection of more efficient strains by artificial mutagenesis is an urgent requirement for the application of Beauveria bassiana against pine caterpillars.