几种生物杀虫剂对杨扇舟蛾种群的控制作用  

Control effects of different biological insecticides on Clostera anachoreta population in the field

作　　者：信善林 刘瑞荣 王勇 吕英霞[3] 

机构地区：[1]寿光市林业局,山东寿光262700 [2]寿光市园林处,山东寿光262700 [3]山东潍坊科技学院,山东寿光262700

出　　处：《中国森林病虫》2011年第6期46-48,共3页Forest Pest and Disease

摘　　要：应用昆虫生命表技术,评价4种生物杀虫剂对杨扇舟蛾种群的控制作用。结果表明,0.3%印楝素乳油、1.8%阿维菌素乳油和Bt乳剂对杨扇舟蛾种群直接毒杀作用较好,但只施用1次不能将1代杨扇舟蛾种群趋势指数(I)降至1.000以下。0.3%印楝素乳油+Bt乳剂、0.3%印楝素乳油+1.8%阿维菌素乳油,对杨扇舟蛾的联合控制作用显著,I值均小于1.000,同时表明4种生物杀虫剂对天敌无毒副作用。The effects of biological insecticides against Clostera anachoreta （ Denis ＆ Schiffermtiller） were evaluated with the insect life table. The results indicated that azadirachtin 0. 3 % EC, abamectin 1.8% EC and Bt EO were more effective. The indexes of population trend（I-value） were above 1. 000 when the biological agents were applied only once. However, combined efficacy of two insecticides （ i. e azadirachtin ＋ abamectin, azadirachtin ＋ Bt） had significantly control effects. The I-values were much lower than 1.000. And the 4 biological insecticides were safe to natural enemies.

关 键 词：生物杀虫剂 杨扇舟蛾 种群控制 生命表 

分 类 号：S763[农业科学—森林保护学]