{"title":"金合树果实溶剂提取物对日本脑炎病媒vishnui库蚊群的杀蚊活性","authors":"Mousumi Barik, Anjali Rawani, G. Chandra","doi":"10.5376/JMR.2016.06.0013","DOIUrl":null,"url":null,"abstract":"The purpose of present study was to determine the larvicidal activity of different solvent extracts of fruits of Acacia auriculiformis against the 3 rd larval instar of Culex vishnui group. The solvent extracts of fruits of A. auriculiformis (concentrations were 100, 200, 300 ppm) showed varied results against 3 rd larval instars with highest mortality at 300 ppm. The percent mortality was higher in chloroform: methanol (1:1 v/v) extract than other extracts. The order of efficacy of different solvent extracts was chloroform: methanol (1:1 v/v) > absolute alcohol > n-Hexane > acetone > petroleum ether. Results of regression analyses showed that percentage mortalities were positively correlated with the concentrations. Probit analysis revealed LC 50 value and their LCL and UCL values at different time intervals and the lowest LC 50 value was obtained at 72 h of exposures. There was no mortality of non-target organisms after 24 h of exposure to lethal concentration (LC 50 value of chloroform: methanol (1:1 v/v) solvent extract at 24 h determined against 3rd instar larvae).","PeriodicalId":92079,"journal":{"name":"Journal of mosquito research","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2016-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Mosquito larvicidal activity of solvent extracts of fruits of Acacia auriculiformis against Japanese encephalitis vector Culex vishnui group\",\"authors\":\"Mousumi Barik, Anjali Rawani, G. Chandra\",\"doi\":\"10.5376/JMR.2016.06.0013\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The purpose of present study was to determine the larvicidal activity of different solvent extracts of fruits of Acacia auriculiformis against the 3 rd larval instar of Culex vishnui group. The solvent extracts of fruits of A. auriculiformis (concentrations were 100, 200, 300 ppm) showed varied results against 3 rd larval instars with highest mortality at 300 ppm. The percent mortality was higher in chloroform: methanol (1:1 v/v) extract than other extracts. The order of efficacy of different solvent extracts was chloroform: methanol (1:1 v/v) > absolute alcohol > n-Hexane > acetone > petroleum ether. Results of regression analyses showed that percentage mortalities were positively correlated with the concentrations. Probit analysis revealed LC 50 value and their LCL and UCL values at different time intervals and the lowest LC 50 value was obtained at 72 h of exposures. There was no mortality of non-target organisms after 24 h of exposure to lethal concentration (LC 50 value of chloroform: methanol (1:1 v/v) solvent extract at 24 h determined against 3rd instar larvae).\",\"PeriodicalId\":92079,\"journal\":{\"name\":\"Journal of mosquito research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of mosquito research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5376/JMR.2016.06.0013\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of mosquito research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5376/JMR.2016.06.0013","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
摘要
本研究旨在测定金合树果实不同溶剂提取物对vishnui库蚊组第3幼虫的杀虫活性。木耳木耳果实溶剂提取物(浓度分别为100、200、300 ppm)对3龄幼虫的杀伤效果不同,以300 ppm的效果最高。氯仿:甲醇(1:1 v/v)提取物的死亡率高于其他提取物。不同溶剂提取物的药效顺序为:氯仿:甲醇(1:1 v/v);无水乙醇;bb1;正己烷;bb2;丙酮;回归分析结果表明,死亡率与浓度呈正相关。Probit分析显示不同时间间隔的lc50值及其LCL和UCL值,暴露72h时lc50值最低。致死浓度(氯仿:甲醇(1:1 v/v)溶剂提取物对3龄幼虫24 h lc50)处理后,非目标生物无死亡。
Mosquito larvicidal activity of solvent extracts of fruits of Acacia auriculiformis against Japanese encephalitis vector Culex vishnui group
The purpose of present study was to determine the larvicidal activity of different solvent extracts of fruits of Acacia auriculiformis against the 3 rd larval instar of Culex vishnui group. The solvent extracts of fruits of A. auriculiformis (concentrations were 100, 200, 300 ppm) showed varied results against 3 rd larval instars with highest mortality at 300 ppm. The percent mortality was higher in chloroform: methanol (1:1 v/v) extract than other extracts. The order of efficacy of different solvent extracts was chloroform: methanol (1:1 v/v) > absolute alcohol > n-Hexane > acetone > petroleum ether. Results of regression analyses showed that percentage mortalities were positively correlated with the concentrations. Probit analysis revealed LC 50 value and their LCL and UCL values at different time intervals and the lowest LC 50 value was obtained at 72 h of exposures. There was no mortality of non-target organisms after 24 h of exposure to lethal concentration (LC 50 value of chloroform: methanol (1:1 v/v) solvent extract at 24 h determined against 3rd instar larvae).