OB增效剂对斜纹夜蛾核多角体病毒的增效作用  

Synergistic effect of OB synergist on Spodoptera litura nucleopolyhedrovirus (SpltNPV)

作　　者：梁卿 李辉 徐树兰 程中山[2] 汤历 何道航[3] 陈其津[2] 

机构地区：[1]广州市生物防治站,广州510460 [2]中山大学生命科学学院,广州510275 [3]华南理工大学化学与化工学院,广州510640

出　　处：《环境昆虫学报》2008年第4期331-335,共5页Journal of Environmental Entomology

基　　金：广州市科技计划资助项目(2007Z3-E0581);广东省科技计划项目(2007A020300001-7)

摘　　要：本文以OB作为斜纹夜蛾核多角体病毒（Spodoptera litura nucleopolyhedrovirus，SpltNPV）的增效剂，对斜纹夜蛾Spodoptera litura幼虫进行生物测定，结果表明，在0．25％-1．00％的浓度范围内，随着OB增效剂浓度的提高，其对斜纹夜蛾核多角体病毒的增效作用也随着提高，最高增效倍数达85．1倍；在2～4龄幼虫范围内，随着虫龄的增大，OB增效剂对斜纹夜蛾核多角体病毒的增效作用也增加；而随着温度的升高，增效剂的增效作用无显著提高。Spodoptera litura nucleopolyhedrovirus （SpltNPV） was mixed with a synergist OB against larvae of a laboratory colony of Spodoptera litura. The results showed that, within 0. 25% - 1.00% concentration, the efficacy was enhanced as the increase of the concentration of OB, and reached the maximum of 85. 1 fold of the control. When the larvae stage ranges from 2^nd to 4^th instar, the effecacy was enhanced with the instar increasing. Furthermore, the effecacy was not obviously enhanced when temperature increased.

关 键 词：OB增效剂 斜纹夜蛾核多角体病毒 斜纹夜蛾 温度 

分 类 号：S763.12[农业科学—森林保护学]