Vol. 7, Issue 1, Part B (2025)

Field experiments were conducted to evaluate bioefficacy of new generation insecticides against leaf miner (Aproraema modicella Deventer) and tobacco caterpillar (Spodoptera litura Fab.) on groundnut under field condition during Kharif and Rabi seasons of 2020 and 2021. The observations on number of tobacco caterpillar larvae and leaf miner larvae were recorded on top, middle and bottom leaves of five randomly selected plants from each treatment at one day before and 3, 7, 10 and 14 days after first and second application of insecticides. The results of the field experiments conducted in Kharif and Rabi seasons of 2020 and 2021 revealed that all the insecticides were found significantly superior over untreated control in reducing population of leaf miner larvae at 3, 7, 10 and 14 days after first and second application. Spinosad 45 SC @ 200 ml/ha and Emamectin Benzoate 5 SG @ 200 g/ha were found most effective for managing leaf miner larval population on ground nut. Similarly the population of tobacco caterpillar was the lowest in Spinosad 45 SC @ 200 ml/ha followed by Profenophos 50 EC @ 1lit/ha and Cartap hydrochloride 50 SP @ 500 g/ha with 0.67, 0.67 and 1.00 larva/5plants, respectively.