果梢斑螟高毒力白僵菌菌株的筛选  

Screening of High Virulence Beauveria bassiana Strains for Control of Dioryctria pryeri

作　　者：陈越渠[1] 刘庆珍 王晓霞 王晓丹 韩姣[1] 宋丽文[1] CHEN Yuequ;LIU Qingzhen;WANG Xiaoxia;WANG Xiaodan;HAN Jiao;SONG Liwen(Jilin Provincial Academy of Forestry Science,Changchun 130033,China;Forest Survey and Design Institute of Jilin Province,Changchun 130022,China;Forestry Water Conservancy Management Service Station of Lvyuan District,Changchun 130000,China)

机构地区：[1]吉林省林业科学研究院,吉林长春130033 [2]吉林省林业勘察设计院,吉林长春130022 [3]长春市绿园区林业水利管理服务站,吉林长春130000

出　　处：《吉林林业科技》2021年第2期14-17,共4页Journal of Jilin Forestry Science and Technology

基　　金：中央财政林业科技推广示范资金项目(2018-2021)。

摘　　要：果梢斑螟是红松球果主要害虫之一,为探索其无公害防治方法,以采自林间果梢斑螟幼虫为靶标,对球孢白僵菌10株菌株的致病力进行了测定,从中筛选出2株对果梢斑螟幼虫有较高致病力的菌株。结果表明:A3菌株的毒力最高,其处理后10 d的LC_(50)为2.97×10^(5)个·mL^(-1),含1×10^(7)个·mL^(-1)菌液的LT_(50)为4.13 d,对果梢斑螟表现出较强的致病力,具有一定的开发前景。Dioryctria pryer i was one of the main pests of Pinus koraiensis cones,in order to explore its pollution-free control methods,targeted with the larvae of Dioryctria pryeri from the forest,the pathogenicity of 10 strains of Beauveria bassiana was determined,and 2 strains with higher pathogenicity to the larvae were selected.The results showed that A3 had the highest virulence among these strains,the LC_(50)(10 days)was 2.97×10^(5) spores·mL^(-1) and the LT_(50)(1×10^(7) spores·mL^(-1))was 4.13 days,this results indicated that A3 showed strong pathogenicity to Dioryctria pryeri,and had certain development prospects.

关 键 词：球孢白僵菌 果梢斑螟 生物测定 

分 类 号：S763.3[农业科学—森林保护学]