摘要
【目的】核桃黑斑蚜Chromaphis juglandicola(Kaltenbach)是新疆南疆核桃产区的重要害虫之一,常造成核桃叶片失绿焦枯,严重时核桃仁干缩,出仁率下降20%以上。通过防治核桃黑斑蚜的药效试验,筛选高效、低毒的化学药剂,从而达到有效控制核桃黑斑蚜的目的。【方法】选择4种药剂,采用喷雾的方法对核桃黑斑蚜进行防治试验。【结果】25%吡蚜酮悬浮剂3 0002、500、2 000倍处理、25%吡虫啉可湿性粉剂5 000倍处理、20%啶虫咪可湿性粉剂3 000倍处理和2.5%高效氯氟氰菊酯乳油1 000倍处理对核桃黑斑蚜均有较好的防治效果,且对核桃树安全。【结论】防治核桃黑斑蚜,可选用试验筛选出的以上4种药剂,同时注意合理轮换用药,以减少核桃黑斑蚜的抗药性产生。
[Objective]Chromaphis juglandicola Kaltenbach is one of the important pests in South of Xinjiang.It caused the walnut leaves wither and the green color fade,even semen juglandis turn shrivelling and withering.The Kernel percent was reduced by more than 20%.The high efficient and the low toxicity pesticide were screened by experiments in order to effectively control the Chromaphis juglandicola Kaltenbach.[Method]Four insecticides were selected to control Chromaphis juglandicola Kaltenbach with spraying method.[Result]The results showed that the control effect against Chromaphis juglandicola reached more than 99% for 7 days later and they are safe of walnut by 25%Pymetrozine SC 3 000 times,2 500 times and 2 000 times,25% Imidacloprid WP 5000 times,20% Acetamiprid WP 3 000 times,2.5% Lambda-cybalothrin EC 1000 times.[Conclusion]For control of Chromaphis juglandicola,25%Pymetrozine SC,25% Imidacloprid WP,20% Acetamiprid WP and 2.5% Lambda-cybalothrin EC could be applied alternately with regular pesticides.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2011年第2期363-365,共3页
Xinjiang Agricultural Sciences
基金
国家科技支撑计划课题(2009BADA4B00)
关键词
杀虫剂
核桃黑斑蚜
药效
insecticide； Chromaphis juglandicola Kaltenbach； control effect
