Insecticidal Active of Hibiscus trionum L against Wolfberry Aphis  

野西瓜苗对枸杞蚜虫的杀虫活性研究(英文)

作　　者：左玲霞 谢晓鹏 杨敏丽[3] 

机构地区：[1]银川职业技术学院,宁夏银川750105 [2]宁夏育才中学,宁夏银川756500 [3]宁夏大学能源化工重点实验室,宁夏银川750021

出　　处：《Plant Diseases and Pests》2010年第6期61-63,共3页植物病虫害研究（英文版）

基　　金：Supported by National Natural Science Foundation of China (20565003);Natural Science Foundation of Ninxia Province (NZ0719)~~

摘　　要：[Objective] The contact toxicity of the extracts from Hibiscus trionum L with different solvents against wolfberry aphis was studied.[Method] The drop method was used for the determination of the insecticidal activities.[Result] 95% ethanol extract displayed the higher contact toxicity on wolfberry aphis and the corrected mortality rate of wolfberry aphids increased with the increasing of the concentration and the prolongation of treating time.The corrected mortality rate in 48 h reached 97.04% under the concentration of 50.00 g/L.The regression equation of virulence was y=1.791 0x＋3.750 2 and LC50 =4.986 7 g/L.The insecticidal activities of five extracts against wolfberry aphids were as follows：chloroformpetroleum etherethyl acetaten-butanol water.The corrected mortality rate of chloroform extract in 48 h was 97.04%.[Conclusion] The study provided a certain reference for further research and its development of H.trionum and its development of new types of botanical pesticide.[Objective] The contact toxicity of the extracts from Hibiscus trionum L with different solvents against wolfberry aphis was studied.[Method] The drop method was used for the determination of the insecticidal activities.[Result] 95% ethanol extract displayed the higher contact toxicity on wolfberry aphis and the corrected mortality rate of wolfberry aphids increased with the increasing of the concentration and the prolongation of treating time.The corrected mortality rate in 48 h reached 97.04% under the concentration of 50.00 g/L.The regression equation of virulence was y=1.791 0x＋3.750 2 and LC50 =4.986 7 g/L.The insecticidal activities of five extracts against wolfberry aphids were as follows：chloroformpetroleum etherethyl acetaten-butanol water.The corrected mortality rate of chloroform extract in 48 h was 97.04%.[Conclusion] The study provided a certain reference for further research and its development of H.trionum and its development of new types of botanical pesticide.

关 键 词：Hibiscus trionum L Wolfberry aphids Insecticidal activity 

分 类 号：S435.671[农业科学—农业昆虫与害虫防治]