核桃青皮不同溶剂提取物对烟青虫的防治效果研究  

Study on Protective Effect of Different Solvent Extracts from Walnut Green Husk on Tobacco Budworm

作　　者：何念武[1] 刘晓阳[1] 李堆淑[1] 任道远[2] 黄金辉 

机构地区：[1]商洛学院生物医药与食品工程学院,陕西商洛726000 [2]陕西师范大学食品工程与营养科学学院 [3]陕西省烟草公司商洛市公司

出　　处：《现代农业科技》2016年第22期109-110,117,共3页Modern Agricultural Science and Technology

基　　金：陕西省教育厅专项科研计划项目"商洛核桃青皮提取物防治烟草病虫害关键技术研究"(15JK1219);商洛市烟草公司横向科研项目"核桃青皮提取物防治烟草病毒病关键技术研究"(KJ-2014-02)

摘　　要：采用水、乙醇、氯仿、乙酸乙酯及乙醚5种不同极性的溶剂,利用超声波辅助提取法从核桃青皮中提取有效成分,继而研究其对烟青虫的毒杀和拒食活性。结果表明:5种提取物均对烟青虫具有毒杀作用,且呈现良好的剂量效应关系,不同提取物、不同浓度都会影响烟青虫的毒杀活性和拒食活性。5种提取物对烟青虫的杀虫活性顺序依次为乙酸乙酯提取物>氯仿提取物>乙醚提取物>乙醇提取物>水提取物。由此可见,核桃青皮不同溶剂提取物对烟青虫具有一定的毒杀作用,具有开发成生物农药的潜力。Using water, ethanol, chloroform, ethyl acetate and ethyl ether five different polar solvents, effective components from walnut peel were extracted by ultrasonic extraction,and then the tobacco budworm poison and antifeedant activity were studied.The results showed that five kinds of extracts had toxic effect on tobacco budworm, and showed a good dose-response relationship, different extracts of different concentrations would affect the tobacco budworm toxicity and antifeedant activity.The order of insecticidal activity of five kinds of extracts to the tobacco budworm was ethyl acetate extract 〉 chloroform extract 〉 ethyl ether extract 〉 ethanol extract.Thus,different solvent extracts from walnut green husk has certain toxic effect on tobacco budworm, has potentiality in biological pesticide development.

关 键 词：核桃青皮 提取物 烟青虫 毒杀活性 拒食活性 

分 类 号：S433[农业科学—农业昆虫与害虫防治] S481.9[农业科学—植物保护]