印楝素与三种杀虫剂对小菜蛾的联合毒力作用  

STUDIES ON COMMON-TOXICITY OF AZADIRACHTIN WITH THREE INSECTICIDES AGAINST DIAMONBACK MOTH (Plutella xylostella)

作　　者：赵德[1] 慕卫[1] 张月亮[1] 刘彦良[1] 贺宪民[2] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018 [2]西安近代化学研究所,陕西西安710065

出　　处：《山东农业大学学报（自然科学版）》2005年第1期123-125,共3页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：采用浸叶浸虫法,测定了印楝素与三种杀虫剂对小菜蛾的室内联合毒力作用,并筛选出了药剂的最佳复配比例。结果表明,印楝素∶阿维菌素为2.3:1,共毒系数(CTC)为141.14,增效作用最为显著;印楝素∶Bt为1:1,共毒系数为136.74;而印楝素与高效氯氰菊酯混配对小菜蛾表现为相加作用。The Common-toxicity of azadirachtin with three insecticides were tested in the laboratory by dipping methods.The results showed that azadirachtin with abamectin in mix-proportion of 2.3:1 had remarkable synergistic effects,and common-toxicity cofficient (CTC) was 141.14,and the CTC of the experiment was 136.74.when azadirachtin mixed with Bt in mix-proportion of 1:1.However,The results also indicated that azadirachtin mixed with beta-cypermethrin had no synergistic effect.

关 键 词：联合毒力作用 印楝素 小菜蛾 杀虫剂 高效氯氰菊酯 共毒系数 复配比例 阿维菌素 增效作用 相加作用 

分 类 号：S436.3[农业科学—农业昆虫与害虫防治] TU746.2[农业科学—植物保护]