杀虫剂溴氰菊酯对野桑蚕和家蚕的毒力比较  

Comparison of Toxicities of Pesticide Deltamethrin to Bombyx mori and Bombyx mandarina

作　　者：赵华强[1] 王东[1] 李兵[1] 许雅香[1] 贡成良[1] 沈卫德[1] 

机构地区：[1]苏州大学生命科学学院,江苏苏州215123

出　　处：《蚕业科学》2008年第1期115-118,共4页ACTA SERICOLOGICA SINICA

基　　金：国家重点基础研究发展计划“937”项目(编号2005CB12-1005);国家自然科学基金项目(编号30471309);江苏省研究生科技创新项目(编号CX07B-193Z)

摘　　要：基于了解野桑蚕（Bombyx mandarina）和家蚕（Bombyx mori）对农用杀虫剂溴氰菊酯的抗药性差异，采用点滴法和浸叶法测定了溴氰菊酯对野桑蚕和家蚕的毒力，结果其毒力基本一致。野桑蚕和家蚕对溴氰菊酯的敏感度均较高，LD50在0．027～0.429ng／头之间，但吴江野桑蚕、启东野桑蚕和苏大野桑蚕的抗药性较相对敏感的家蚕品种大造、菁松、皓月强10．11～15．89倍，较家蚕品种L11强4．37倍。The study on the resistance difference of Bombyx mori and Bombyx mandarina to deltamethrin plays important role in the elucidation of resistance mechanism of Bombyx moil to deltamethrin and prevention of lepidoptera pests in mulberry garden, The toxicities of deltamethrin to Bombyx mori and Bombyx mandarina were determined through topical application and leaf dipping method respectively, The results showed that the toxicities of deltamethrin to Bombyx mori and Bombyx mandarina were nearly identical. Both Bombyx mori and Bombyx mandarina were susceptible to deltamethrin, and LD50 were 0. 027 ～0. 429 ng/larva. Compared with relatively susceptible Dazao strain of Bombyx mori, the resistance of the strains of Wujiang, Qidong, and Soochow University of Bombyx mandarina to deltamethrin were increased to 10. 11 ～ 15.89 folds, Laos strain of Bombyx mori was increased to 4. 37 folds, and Jingsong and Haoyue strains of Bombyx mori were as susceptible as Dazao strain.

关 键 词：杀虫剂 溴氰菊酯 野桑蚕 家蚕 毒力 

分 类 号：S884[农业科学—特种经济动物饲养]