伊犁河谷几种药剂喷雾、灌根防治苹果绵蚜效果

Control Effect of Different Insecticides with Spraying Crown and Watering Roots on Wolly Apple Aphid in Ili

【目的】筛选防治苹果绵蚜的高效低毒无公害药剂,有效控制苹果绵蚜。【方法】选择七种药剂采用田间灌根、喷雾方法对苹果绵蚜Ribosome lanigerum (Hausmann)进行防治试验。【结果】40%乐斯本乳油2000倍液、2.4%阿巴丁乳油10000倍液和3.0%啶虫脒可湿性粉剂1 000倍液田间喷雾15 d后对苹果绵蚜的防治效果分别达100%、96.16%和80%。40%辛硫磷乳油1000倍液、1.2%苦参碱.烟碱乳油1000倍液春季灌根防效达95%和91%。【结论】比较春季和秋季两次灌根时间,以春季灌根效果为好。

【Objective and Method】Seven insecticides were selected to control Eriosoma lanigerum（Hausmann） with watering root and spraying method.【Result】The results showed that by use of 40% Lorsban EC 2 000 times,2.4% AvermectinEC 1 000 times and 3.0% Acetamiprid WP 1 000 times in field to control Eriosoma lanigerum,the control effect against wolly apple aphid reached respectively 100%,96.16% and 80% for 15 days later.By use of 40% phoxim EC 1 000 times,1.2% Matrine· Nicotine EC 1 000 times Watering the Root,control effect were 95% and 91%,They had significant control effect.【Conclusion】The control effect of Watering the Root in sping is beter than in autumn.