不同球孢白僵菌菌株对马尾松毛虫致病性评价  

Pathogenicity Evaluation of the Entomopathogenic Fungi Beauveria bassiana against Dendrolimus punctatus

作　　者：汤强[1] 刘玉军[2] 萧晟[1] 方玲[1] 

机构地区：[1]芜湖职业技术学院,安徽芜湖241003 [2]安徽农业大学微生物防治省重点实验室,安徽合肥230036

出　　处：《皖西学院学报》2013年第2期70-72,共3页Journal of West Anhui University

基　　金：国家"863"项目(2011AA10A203;2011AA10A204);安徽省高校自然科学基金项目(KJ2012B218);芜湖职业技术学院科研项目(WZ\[2010\]ky02);芜湖职业技术学院2011年质量工程(校级实训中心)资助

摘　　要：选择9个球孢白僵菌Beauveria bassiana菌株对4龄马尾松毛虫Dendrolimus punctatus幼虫进行毒力测定。结果显示,菌株Bb1900对马尾松毛虫幼虫的校正死亡率达96.16%,侵染率达86.67%,在孢子浓度为1×107孢子/mL时的半致死中时仅为4.62d,显示出对目标害虫的较强毒力,在马尾松毛虫的生物防治中将有重要的应用价值。Nine strains of Beauveria bassiana were adopted for the bioassay against the Dendrolimus punctatus. The strain Bb1900 showed that the highest virulence on the target pest with a Corrected mortality of 96. 16%0, a infection ratio of 86. 67%0, and median lethal time （LT50） was 4. 62 d at a concentration of 1 X 10^7 conidia/ml. The objective of this study was to strain Bbl900 has the great potential as one of the biological control agents for the sustainable control of D. punctatus in the future.

关 键 词：马尾松毛虫 球孢白僵菌 生物测定 生物防治 

分 类 号：Q949.32[生物学—植物学]