大果大戟浸膏对麦蚜等农林害虫的喷雾毒力测定  

Spraying virulence of Euphorbia wallichii paste against insect pests such as Macrosiphum avenae

作　　者：宋景云[1] 于杰 孙庆宝[1] 赵剑峰[1] 

机构地区：[1]孙吴县林业局森林病虫防治检疫站,黑龙江孙吴164200 [2]鹤岗市森林病虫害防治检疫站,黑龙江鹤岗154101

出　　处：《中国森林病虫》2007年第3期42-43,共2页Forest Pest and Disease

摘　　要：以不同浓度大果大戟浸膏溶液（0．25～2）mg／mL喷雾，测定其对麦蚜、油菜蚜虫以及榆白长齿卷蛾幼虫的毒力。结果表明，当大果大戟浸膏浓度为0．25mg／mL时，麦蚜、油菜蚜虫、榆白长齿卷蛾幼虫的平均死亡率分别为82．33％，70％，63．33％。大果大戟浸膏对麦蚜的毒力最强，其次是油菜蚜虫，对榆白长齿卷蛾幼虫毒力较弱。喷雾毒杀麦蚜和油菜蚜虫可用0．25mg／mL浓度，而榆白长齿卷蛾幼虫的合适浓度在（0．3～0．4）mg／mL。Euphorbia wallichii paste was applied on larvae of Macrosiphurn avenae, Lipaphis erysirni pseudobrassicae and Acleris ulmicola. The results showed that mortality of the above three averaged 82.33 %, 70 % and 63.33 % at the concentration of 0.25 mg/mL. The virulence of extracted paste of Euphorbia wallichii on the three was Macrosiphum avenae 〉 Lipaphis erysirni pseudobrassicae 〉 Acleris ulmicola. The concentration of 0.25 mg/mL was recommended for the controll of Macrosiphum avenae and Lipaphis erysimi pseudobrassicae ,while （0.3～0.4）mg/mL for Acleris ulmicola.

关 键 词：大果大戟 浸膏 麦蚜 油菜蚜 榆白长齿卷蛾幼虫 喷雾毒力 

分 类 号：S763[农业科学—森林保护学]