Vol. 8, Issue 12, Part F (2024)

Study on bio rational management of mustard aphid was conducted S.I.F on Chandra Shekhar Azad University of Agriculture & Technology Kanpur, during Rabi 2023-24 on Indian mustard (Brassica juncea) variety “Varuna”. Among the eight treatments including control plot Spinosad 45% SC found as the most effective treatment for reducing Lipaphis erysimi populations followed by NSKE 5%, Beauveria bassiana, Castor Leaf Extract 10%, Lantana leaf extract 10%, Metarhizium anisopliae, Lecanicillium lecanii and also the maximum yield was obtained with treatment Spinosad 45% SC giving 20.17 q/ha) followed by NSKE 5% (18.30), followed by Beauveria bassiana (17.52), castor leaf extract(17.42), lantana leaf extract(17.15) and Lecanicillium lecanii(16.17) The highest net profit (₹ 28320 per ha) was obtained from the Spinosad 45% SC while the lowest net profit (₹ 5274 per ha) was estimated from the treatment of Lecanicillium lecanii. The bio rational insecticides were effective enough in controlling the mustard aphid to a considerable level which are less harmful to the environment as well.