Comparative Efficacy of Selected Bio-pesticides against Tomato Fruit Borer [Helicoverpa armigera (Hubner)] on Tomato [Solanum lycopersicum (L.)]

Abstract

The field trail on Comparative efficacy of selected Bio-pesticides against tomato fruit borer [Helicoverpa armigera (Hubner)] on tomato [Solanum lycopersicum (L.)] was conducted during Rabi 2022-2023, at Central Research Farm, Department of Entomology, SHUATS, Naini, Prayagraj, U.P. The experiment was laid out in RBD (Randomized Block Design) and replicated thrice with seven treatments viz., T1 Spinosad 45% SC (125ml/lit), T2 Chlorantraniliprole 18.5%SC (30g/ha), T3 Nisco sixer plus (1ml/lit), T4 Neem oil 5% (5ml/lit), T5 Metarhizium anisopliae (1g/lit), T6 Beauveria bassiana (0.3ml/lit), T7 NSKE 5% (25kg/ha). The data on incremental larval population of different treatments reported that Chlorantraniliprole 18.5% SC (1.32) was highest effective which is followed by Spinosad 45% SC (1.45) > Nisco sixer plus (1.58) > Neem oil 5% (1.65) > NSKE 5% (1.72) > Beauveria bassiana (1.72) > and Metarhizium anisopliae (1.80). The most economical viable treatment with the highest yield as well as C:B ratio was obtained from Chlorantraniliprole 18.5% SC 210 q/ha and (1:8.6) respectively. It was followed by Spinosad 45% SC (1:7.8), Nisco sixer plus (1:7.7), neem oil (1:7.1), NSKE (1:6.9), Beauveria bassiana (1:5.4), Metarhizium anisopliae (1:4.6) as compared to untreated control (1:3.2) having the lowest B:C ratio.