Farmer participatory field experiments were carried out at Enthal village in M/s Dharani sugars Ltd, Polur command area and at Andiyappanur village in M/s. Tiruppattur co-operative sugar mill Ltd, kethandapatti command area of North East Zone of Tamil Nadu during 2015-2018 to develop management technique with insecticides against white grub (Holotrichia serrata, Scarabaeidae, Coleoptera). The sugarcane varieties, CoC 24 and Co 86032 were ratooned during last week of January of respective years affected with white grub has been selected. Six insecticides (listed in table) applied as soil drenching/soil application in root zone affected clumps along with untreated check replicated thrice in randomized block design. The treatments were imposed in the third week of June of respective years. The observations on the number of white grubs per meter row in the root zone were recorded a day before and 15, 30, 45, 60th days after treatment applied and percent reduction was worked out. The yield parameters were recorded at the time of harvest. The highest (100%) grub population reduction was recorded in imidacloprid and Chlorantraniliprole on 15th day after application. It was concluded that soil drenching of imidacloprid 17.8 SL @ 250 ml/ha in root zone of affected cane were very effective in reducing white grub population within 15 days of application and recorded highest cane yield of 87.39 t/ha with CCS of 12.88% which accounted for 38.77 % higher yield with higher cost benefit ratio of Rs. 2.76 than untreated control.