Management of shoot and fruit borer, Leucinodes orbonalis Guenee through Bacillus thuringiensis formulations on brinjal

Evaluation of different Bacillus thuringiensis (B.t.) formulations in comparison with neem and chemical insecticides against brinjal shoot and fruit borer, Leucinodes orbonalis Guenee during kharif 1999–2000 indicated that five sprays of Dipel 8L @ 0.2 per cent at 10 days interval which resulted in minimum shoot (9.56%) as well as fruit (11.78%) infestation and maximum yield of marketable fruits (196.96 q/ha) and proved to be the most effective treatment. It was however, at par with Delfin WG, Halt WP and Biolep WP, all at 0.2 per cent concentrations. This was followed by Biobit HPWP,. Spicturin and chemical insecticides viz., cypermethrin and endosulfan, while neem was found to be the least effective treatment.