J. N. Krishi Vishwa Vidyalaya, Jabalpur-482 004 Madhya Pradesh (India).
*A part of approved Ph. D. thesis submitted by Shri O.P. Dubey to JNKVV, Jabalpur, Madhya Pradqsh (India).
The anti-feeding properties of nine naturally occurring plant products, viz, neem (Azodirachta indica) leaf extract 5%, neem seed kernel extract 546, neem oil 0.596, neem rind extract 196, neem leaf dust 196, garlic (Allium sativum) extract 25%,onion (Allium cepa) extract 2.5%, shikekai (Acacia concinna) pod extract 146, ritha (Sapindus emarginalus) pod extract 1% along with the effectivenss of monocrotophos 36 w/w (WSC) 0.04%,and BHC 5% +DDT 5%dust (1:1) @ 25 kgh were evaluated against the larvae of Heliothis armigera. The neem seed kernel extract and neem rind extract due to their antifeedant action provided maximum protection to chickpea resulting in higher yields. Garlic, shikekai pod, ritha pod and onion extracts proved to be the least effective. Both the insecticidal treatments, viz., monocrotophos (WSC) and BHC + DDT dust (1:1) were the most effective in reducing the incidence of H. armigera on pods and thus resulted in higher yield.
