Biological Control in Sugarcane in Uttar Pradesh with Combination of Safer Insecticides

Sugarcane crop was treated with a combination of insecticides and biological agent Trichogrammachilonis. A group chlorinated carbons and other insecticides were treated with adult Trichogrammachilonis. The insecticides used were dieldrin, emamectin benzoate, indoxacarb, lufenuron, bifenthrin, spinosad, carbosulfan, chlorpyrifos, triflumuron, imidachloprid and abamectin. These were tested on pre-imaginal development and adult survival of egg parasitoid, Trichogrammachilonis at Dayal Bagh Research Institute, Agra ware performed in 2003. All insecticides except emamectin benzoate, lufenuron, triflumuron and imidachloprid had a significant adverse effect on the emergence of T. chilonis when exposed to all immature stages of development (egg, larvae, pre-pupae, early pupae and pupae) in the host eggs of Sitotrogacerealella. At adult Trichogramma exposure to insecticides, imidachloprid, abamectin, triflumuron, emamectin benzoate, indoxacarb and lufenuron had 70.02, 32.19, 27.62, 25.98, 21.45 and 18.48 per cent survival, respectively after 4 hours but after 24 hours none of the insecticides was safer for Trichogrammachilonis adult.