STUDIES ON BIOCHEMICAL CHANGES IN THE TOTAL PROTEIN AND FREE AMINOACID CONTENT OF HAEMOLYMPH OF SIXTH INSTAR LARVAE OF Orthaga exvinacea HAMPSON DUE TO THE EFFECT OF Hyptis suaveolens AND Vitex negundo.

K. D. RANJINI; K. R. RANJINI

Volume : V, Issue : III, March - 2016

STUDIES ON BIOCHEMICAL CHANGES IN THE TOTAL PROTEIN AND FREE AMINOACID CONTENT OF HAEMOLYMPH OF SIXTH INSTAR LARVAE OF Orthaga exvinacea HAMPSON DUE TO THE EFFECT OF Hyptis suaveolens AND Vitex negundo.

K. D. Ranjini, K. R. Ranjini

Abstract :

<p>&nbsp;Among the pests of mango trees, the mango leaf webber, Orthaga exvinacea is a major defoliator pest. Considering the economic loss caused by the pest, due to low productivity, a study was carried out to estimate the influence of two botanicals on protein and aminoacid concentration of haemolymph. Five different concentrations of methanolic extracts of Hyptis suaveolens and Vitex negundo leaf extracts were used for treating mango leaves to feed experimental larvae. Haemolymph was collected from both control and treated larvae for estimation of protein and aminoacid content. Compared with control, leaf extracts of both plants can significantly reduce protein and aminoacid concentration of haemolymph of experimental larvae. Vitex negundo extract was more efficient in decreasing the total protein and free amino acid content of haemolymph than Hyptis suaveolens. Since these botanicals affect the biochemical profile of this pest they may be used in the management of Orthaga exvinacea.</p>