Field study on Miticidal activity of some Plant extracts on Leaf Galls of Pongamia pinnata (L.) Pierre in Forest nursery of Indore, India

摘要

Gall formation is the consequence of interaction between the offensive stimulation of the insect and the defensive response of the plant. Eriophyes cheriani massee is a gall formation insect found on the leaves of Pongamia pinnata. In current study, Different concentrations of leaf aqueous and ethanol extract of Calotropis procera, Ipomoea carnea and Thevetia peruviana were tested against galls inducing insect Eriophyes cheriani massee on host plant Pongamia pinnata. Prepared leaf extracts were tested in field condition and the most effective concentration has been worked out.