author(s)
Saayan Samanta, Rana Sen and Arunava Samanta

abstract
The experiment was conducted at Instructional farm of Bidhan Chandra Krishi Viswavidyalaya, Jaguli, Nadia, WB, during rabi season of 2017-18 for the management of major insect pests of cabbage. Pooled data of three applications of eight different insecticidal treatments viz., Derisom (Karanjin 2%EC), Anosom (Annonin 1% EC), Margosom(Azadirachtin 0.15% EC), Lipel (Bacillus thuringiensis var. kurstaki), Biosar (Verticillium lecanii), Biocere (Beauveria Bassiana), Mahamaya (Novaluron@ 10% EC), Tracer (Spinosad 45% SC) and a natural control plot against DBM, shows that Novaluron @ 10% EC was most effective in reducing the larval population of DBM (67.9%) followed by Tracer @ 45% SC (54.5%) and Bt. kurstaki (53.3%). In case of aphid, Margosom @ 0.15% was best in reducing the population (72.9%) followed by Verticillium lecani (51.07%). The highest yield was recorded in the plot treated with novaluron i.e 416.67 q/ha as compare to the untreated plot produce 193.4q/ha cabbage.