不同种类杀虫剂对烟青虫的防治效果  

Control Effects of Several kinds of Insecticides against Helicoverpa assulta Guene

作　　者：戴珏[1] 冯再兴[1] 王影[1] 李凤丽[1] 

机构地区：[1]云南省烟草公司文山州公司,云南文山663000

出　　处：《安徽农业科学》2013年第27期11022-11023,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]筛选出防治烟青虫的高效、低毒杀虫剂。[方法]通过大田喷雾方法研究了5种杀虫剂对烟青虫的防治效果。[结果]5种杀虫剂对烟青虫均具有较好的防治作用。其中以8 000 IU/μl苏云金杆菌悬浮剂1 500 g/hm2、10%醚菊酯悬浮剂1 350 ml/hm2、25 g/L高效氯氟氰菊酯乳油375 ml/hm2喷雾处理对烟青虫的防治效果最好,药后7 d防效分别达到92.94%、91.00%和90.96%,明显高于其他2种药剂及清水对照;5%高氯·甲威盐微乳剂90 g/hm2、0.5%苦参碱水剂1 500 g/hm2喷雾处理对烟青虫的药后7 d防效均也达到80%以上。[结论]为烟青虫防治和烟草生产提供了理论依据。[ Objective ] The aim was to screen out high-efficiency and low-toxicity insecticides against H. assulta. [ Method ] The control effects of five kinds of insecticides against H. assulta were studied though method of spraying in field. [ Result] All the five kinds of insecti- cides had good control effects on H. assulta. Among them 8 000 IU/μl Bt suspension concentrate 1 500 g/hm^2, 10% Ethofenprox suspension concentrate 1 350 ml/hm^2 and 25 g/L Lambda-cyhalothfin EC 375 ml/hm^2 had the best control effects against H. assulta, and their control effects reached 92.94%, 91.00% and 90.96% after seven days respectively, which were obviously higher than those of the other two insecti- cides and CK. 5% Beta-cypermthfin emamectin benzoate micro-emulsion 90 g/hm^2 and 0.5% Matrine AS 1 500 g/hm^2 had more than 80% of control effects after seven days, respectively. [ Conclusion] The research result provides theoretical basis for control of H. assulta and to- bacco oroduction.

关 键 词：杀虫剂 烟青虫 防治效果 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]