Breeding of Highly Virulent Beauveria bassiana Strains for Biological Control of the Leaf-Eating Pests of Dalbergia odorifera

Dalbergia odorifera (D. odorifera), commonly named the fragrant rosewood, is one of second-level protected wild plants in China, and 34 species rosewood five genera eight categories National Standard China. As a kind traditional Chinese medicine (TCM), it plays an important role pharmaceutical industry, including treatment cardiovascular diseases, rheumatic pain, etc. With continuous expansion planting area D. odorifera, diseases pests become more serious, among which leaf-eating are most serious. In this study, ultraviolet rays microwaves were used to mutagenize Beauveria bassiana (B. bassiana) strain HNCMBJ-P-01, excellent mutant strains with high spore yield virulence screened out, then they prepared into wettable powder for forest control experiments study their biocontrol effects. The screening test showed that HBWB-44 was strongest, 10 day corrected mortality rate 80.00%, lethal time 5.622 days. results biological effect B. 100 times solution reached 60.89%, second only botanical fungicide matrine. Generically, we mutated good killing on Plecoptera bilinealis (P. bilinealis), produced by odorifera. application fungal insecticides plantations has prospect controlling occurrence