鱼藤酮对舞毒蛾的毒杀作用  

Toxic Effect of Rotenone on Gypsy Moth

作　　者：问荣荣 马玲[1] 董婉莹[1] 王步勇[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2016年第9期103-105,111,共4页Journal of Northeast Forestry University

基　　金：国家"863"计划项目(2013AA102701);黑龙江省自然科学基金项目(ZD201404);中央高校基本科研业务专项(2572016AA09)

摘　　要：以舞毒蛾(Lymantria dispar)3龄幼虫为对象,采用点滴触杀法测定了植物源农药鱼藤酮对舞毒蛾3龄幼虫的杀虫活性、过氧化氢酶(CAT)活性及幼虫生长的影响。结果显示:鱼藤酮对舞毒蛾3龄幼虫具有低毒高效的毒杀作用,12、24、36、48 h致死中浓度LC50分别为14.10、10.44、9.75、9.51 mg·L_(-1)。CAT酶活性呈现先上升后下降的波动,但均显著高于对照(p<0.05),表现出一定的抗逆性。对舞毒蛾3龄幼虫进行点滴触杀处理后,试虫的鲜质量增长率显著低于对照(p<0.05),表明鱼藤酮抑制舞毒蛾幼虫的生长。We used the tag method to determine the toxicity of rotenone to the 3 rd-instar Lymantria dispar larvae by bioactivity, the CAT activity and the fresh weight changes of larval. The rotenone had effective toxic effect on the 3 rd-instar L. dispar larvae, and 12, 24, 36 and 48 h LCs0 of rotenone for the 3 rd-instar larvae were 14.10, 10.44, 9.75 and 9.51 mg/L, re- spectively. The CAT activity of rotenone treatment group was increased first and then decreased, and obviously higher than that of normal control group （p〈0.05） with resistance. Compared with ddH：O and DMSO treatments, the fresh weight of 3 rdinstar gypsy moth larvae treated by rotenone were lower. The rotenone had efficient toxicity for gypsy moth.

关 键 词：鱼藤酮 舞毒蛾 过氧化氢酶 

分 类 号：S763.3[农业科学—森林保护学]