International Journal of Entomology Research

Authors
A Jeyasankar, T Chinnamani

Abstract
The aim of this research works was to determine the chemical composition and insect growth inhibitory activity of ethyl acetate crude extract of Solanum pseudocapsicum fruits against the Spodoptera litura and Helicoverpa armigera. Ethyl acetate extracts of S. pseudocapsicum fruits were fractionated using Silica-gel Coloum Chromatography and analysed by GC-MS analysis. Total of 47 compounds were identified in the ethyl acetate extracts of S. pseudocapsicum. The major compounds which is responsible for the insect growth inhibitory activity on tested larvae of S. litura and H. armigera were found in n-Propyl acetate, 1,2,3-Propanetriol, monoacetate, Tetradecanoic acid, 1,2,3-Propanetriol, 1-acetate, Triacetin, 9-Hexadecenoic acid, n-Hexadecanoic acid, 9,12-Octadecadienoic acid (Z,Z)-, methyl ester. The maximum larval mortality was observed in Tetradecanoic acid (98.80±0.88 and 96.70±3.29), 9-Hexadecenoic acid (98.40±4.33 and 95.70±3.26) and n-Hexadecanoic acid (98.30±4.33 and 95.20±3.26) also exhibited contact toxicity against S. litura and H. armigera, respectively. The results indicated that this compounds of Tetradecanoic acid, 9-Hexadecenoic acid and n-Hexadecanoic acid showed potential in to serve as an alternate botanical pesticide in the management of S. litura and H. armigera.