球孢白僵菌混合制剂的加工研究  

Studies on the mixed dust formulation of Beauveria bassiana

作　　者：王成树[1,2] 李农昌[1,2] 汤坚[1,2] 李增智[1,2] 

机构地区：[1]安徽省农业大学森林利用学院 [2]安徽省森林病虫防治总站

出　　处：《植物保护》1998年第3期5-8,共4页Plant Protection

基　　金：安徽省重点科研项目

摘　　要：球孢白僵菌混合粉剂是由５１％的孢子粉、２０％紫外保护剂、２５％载体和４％的灭幼脲Ⅲ号，经正交设计优化配方得到。室内生物测定结果表明，此剂对３～４龄马尾松毛虫幼虫ＬＴ５０为５．７ｄ。林间放菌防效达７４．２７％。室温下贮藏０．５ａ，孢子萌发率比高孢粉剂提高１０倍以上。A mixed formulation for the control of pine moth containing 51% Beauveria bassiana conidia powder, 20% UV protectant, 25% fillings and 4% meiyouniao Ⅲ. The laboratory bioassay showed that the LT50 of the formulation was 57 days for the third-fourth instar larvae of Masson'pine caterpillars. Field experiments gave an average of 743% control of the caterpillar, it also showed that the germination rate of the spores of Beauveria bassiana was 10 times higher than the original formulation after 6 month storage.

关 键 词：球孢白僵菌 混合粉剂 生物测定 防效 

分 类 号：S476.12[农业科学—农业昆虫与害虫防治]