Biofficacy of Different Insecticides against Pod Borer, Helicoverpa armigera (Hubner) in Chickpea Crop

Abstract

The present investigation was carried out at Central Research Farm, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, U.P. during Rabi, 2021- 2022. The experiment was conducted in Randomized Block Design (RBD) with eight treatments and 3. replications. The insecticides like Emamectin benzoate 5 SG(Treta) dose @ 0.4gm/Litre, Spinosad 45% SC (Tracer) dose @0.5ml/Litre, Neem oil 0.2% (Neem Aura) dose @2ml/Litre, Karanj oil 0.2% (RV Essential Karanj Oil) dose @2ml/litre, Chlorantriniliprole 18.5 SC (Coragen) dose @0.5ml/Litre, Flubendamide 480SC (Fame) dose @0.4ml/Litre, Profenophos 50 EC (Celcron) dose @2ml/Litre were applied. The mean larval population per plant was recorded one day before and 3, 7 and 14 days after each spray. Among insecticidal treratments the lowest larval population of Helicoverpa armigera on chickpea was recorded in spinosad 45SC@0.5ml/L followed by Flubendiamide 480 SC@0.4ml/L, Emamectin Benzoate 5SG@ 0.4gm/L, chlorantraniliprole 18.5 SC@0.5ml/L and profenophos 50EC@2ml/L. The next effective are botanicals namely., neem oil 0.2%@2ml/L and karanj oil 0.2%@2ml/L was found to be least effective but comparatively superior over the control. The highest yield (24.3 q/ha) was also obtained with application of recorded in spinosad 45SC @ (0.5ml/L) while maximum C:B (1:4.76) was achieved with spray of Flubendiamide 480SC @0.4ml/L.