Pre-harvest and storage treatment of botanicals on Callosobruchus Chinensis (L.) in black gram

Field trials were conducted at the Agricultural College and Research Institute, Madurai, Tamil Nadu in black gram with pre-harvest treatment of botanicals its to evaluate on the carry over of pulse beetle Callosobruchus chinensis (L.). It was observed that the application of Vitex leaf extract 10%, Pongamia oil 2% and Madhuca oil 2% had reduced the incidence. The same treatments in storage revealed that maximum protection was obtained with neem oil 1%, NSK powder 1% and neem leaf powder 2% followed by Madhuca longifolia oil 1%, Vitex negundo leaf powder 2% and Pongamia glabra oil 1% as grain treatments as revealed by reduced oviposition, adult emergence and damage.