Abstract
Different concentrations of aqueous leaf extract of Adhatoda vasica was found to demonstrate insecticidal activity against Albizia lebbeck defoliator Rhesala imparata in laboratory as well as in field conditions. Extract in 10.0 per cent concentration proved to be most effective as it caused a larval mortality of 80.0 per cent in laboratory and an increase of 36.66 per cent in number of healthy plants in the field. Phytochemical analysis of leaf extract revealed the presence of alkaloids of leaf extract revealed the presence of alkaloids and glycosides only.
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