Insecticidal effect of crude plant extract of Adhatoda vasica against Brevicoryne brassicae

Abstract

The present study evaluates the insecticidal activity of (acetone, methanol and water) crude leaf extract of Adhatoda vasica against Brevicoryne brassicae. The alcoholic extracts (5 %) that extracted by acetone and methanol showed 100 and 81.6% mortality of adult B. brassicae, respectively and 100 and 90% mortality of nymphs B. brassicae, respectively. Phytochemical screening revealed that the presence of flavones, volatiles oils, tannins, saponines, glycosides, alkaloids, resins and terpenoids in methanol (80%) crude extract. It can be concluded that the acetone and methanol crude leaf extract of A. vasica nees can produce a high mortality percentage in (nymphs and adults) of B. brassicae, so it can be used as insecticides.