New insecticide molecule to manage groundnut leaf miner Aproaerema modicella (Deventer)

Abstract

Field experiment was conducted to evaluate the new insecticide molecules against groundnut leaf miner Aproaeremamodicella (Deventer) at Agricultural Research Station, Kumta, Uttara Kannada district of Karnataka state during rabi/summer season of 2018-19. Among the new insecticide molecule tested, minimum mean larval population of 0.70 and 0.57larvae/plant with maximum reduction of 78.65 and 78.49 per cent over control was recorded in chlorantraniliprole 18.5 SC@ 0.2 ml/l treated plot followed by spinosad 45 SC @ 0.12 ml/l with mean larval population of 0.96 and 0.70 larvae/plantwith reduction of 70.73 and 73.58 per cent over control, in first and second spray, respectively. Whereas, maximum meanlarval population of 1.94 and 1.31 larvae/plant with minimum reduction of 40.85 and 50.56 per cent over control wasrecorded in botanicals azadirchtin 10,000 ppm treated plot. Chlorantraniliprole 18.5 SC recorded highest yield and netreturn of 28.17q/ha and Rs. 71,144/ha while it was 15.56q/ha and Rs. 12,702/ha respectively in untreated plot.