Pesticidal activity of Rivina humilis L.(Phytolaccaceae)against important agricultural polyphagous field pest,Spodoptera litura(Fab.)(Lepidoptera:Noctuidae)

作     者：Elumalai Arumugam Backiyaraj Muthusamy Kasinathan Dhamodaran Mathivanan Thangarasu Krishnappa Kaliyamoorthy Elumalai Kuppusamy 

作者机构：Unit of EntomotoxicityDepartment of Advanced Zoology&BiotechnologyGovt.Arts College AutonomousNandanamChennai-600035TamilnaduIndia 

出 版 物：《Journal of Coastal Life Medicine》 (海岸生命医学杂志（英文版）)

年 卷 期：2015年第5期

页      面：389-394页

学科分类：1008[医学-中药学(可授医学、理学学位)] 1006[医学-中西医结合] 100602[医学-中西医结合临床] 10[医学] 

基　　金：Supported by University Grants Commission(UGC New Delhi Ref.No.42-583/2013(SR)) 

主　　题：Spodoptera litura Rivina humilis Antifeedant activity Oviposition deterrent activity Ovicidal activity Larvicidal activity 

摘      要：Objective:To evaluate the pesticidal activity of antifeedant,oviposition deterrent,ovicidal and larvicidal activities of benzene,dichloromethane,diethylether,ethylacetate and methanol extracts of Rivina humilis at different concentrations against agricultural polyphagous pest Spodoptera litura(Lepidoptera:Noctuidae)(***).Methods:Antifeedant activities of the selected plant extract were studied as described by Isman et al.(1990),with slight *** oviposition deterrent activity,ten pairs of(adult moths)*** were subjected in five *** 48 h,the numbers of eggs masses laid on treated and control leaves were recorded and the percentage of oviposition deterrence was *** ovicidal activity was determined against the eggs of *** five early fourth instar larvae of *** were exposed to various concentrations and was assayed by using the protocol of Abbott’s formula(1925);the 24 h LC_(50)values of the Rivina humilis leaf extract was determined by probit ***:All the extracts showed moderate antifeedant activitiy;however,significant antifeedant,ovicidal,oviposition deterrent and larvicidal activities were observed in methanol ***:This study showed that the selected plant can be a potent source of natural antifeedant,oviposition deterrent,ovicidal and larvicidal activities against field pest ***.