9 9 2 1 2
Home About us MoEF Contact us Sitemap Tamil Website  
About Envis
Whats New
Microorganisms
Research on Microbes
Database
Bibliography
Publications
Library
E-Resources
Microbiology Experts
Events
Online Submission
Access Statistics

Site Visitors

blog tracking


 
Journal of Asia-Pacific Entomology
Vol. 20 (2), 2017, Pages: 381-385

Antifeedant activity and phytochemical investigation of Millettia pachycarpa extracts against Tobacco Leaf Eating Caterpillar, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Arati Ningombam, Vivek Ahluwalia,Chitra Srivastava, Suresh Walia

Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India.

Abstract

This study was aimed to evaluate the antifeedant activity of leaf extracts on third instar larvae of Tobacco Leaf Eating Caterpillar (Spodoptera litura) and bioassay guided isolation of pure compounds from Millettia pachycarpa. Plant material was extracted with two different solvents; hexane and methanol. Methanol extract was found to be active as compared to hexane extract against S. litura after 48 h and was sequentially further partitioned between hexane, dichloromethane and butanol. DCM fraction was further subjected to column chromatography from which five fractions were obtained. Among different CC fractions, fraction 2 (FR 2) showed highest activity (AI50 227.12 ppm) and pure compound, lupeol, was isolated. Antifeedant activity results show that activity was comparable to natural plant based insecticide azadirachtin and this plant can be further explored for its use as natural pesticide.

Graphical abstract

Keywords: Millettia pachycarpa, Antifeedant activity, No-choice test method, Spodoptera litura, Biopesticide.

Copyright © 2005 ENVIS Centre ! All rights reserved
This site is optimized for 1024 x 768 screen resolution