Efficacy of Certain Insecticides against Shoot and Fruit Borer, Leucinodes orbonalis (Gueenee) on Brinjal Crop Solanum melongena (L)

Abstract

A field experiment was conducted at the Central Research Farm (CRF), Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh during Kharif season 2023. The experiment was laid in Randomized Block Design with eight treatments replicated thrice along with untreated control plot. Eight treatments viz. Novaluron @ 10% EC 0.5ml/lit, Spinetoram 11.7% SC @0.4g/lit, Emamectin benzoate 5% SG @0.4g/lit, Chlorantraniliprole 18.5SC@0.5ml/lit, Flubendiamide 39.35% SC @0.5 ml/lit, Neem oil 2% @20ml/lit, Beauveria bassiana1x108 CFU @ 2.5g/lit and untreated control were evaluated against shoot and fruit borer. During the investigation, it was revealed that the lowest percent shoot and fruit borer (Leucinodes orbonalis) infestation after 1st and 2nd spray was observed in the treatment Chlorantraniliprole 18.5 % SC i.e. 2.32% and 2.16%, followedby Emamectin benzoate 5% SG (3.21 and 2.97), Spinetoram 11.7% SC (3.81 and (3.30), Novaluron 10% EC (4.62 and 4.05), Flubendiamide 39.35% SC 5.39 and 4.903, Neem oil 2% 5.98 and 5.38 and Beauveria bassiana 1x108 CFU 6.35 and 5.48. The treatment Beauveria bassiana 1x108 CFU 6.35 and 5.48 was found to be least effective among all the treatments against Leucinodes orbonalis. The plot treated with Chlorantraniliprole 18.5% SC (241.75 q/ha, 1:13.14) was found most effective with highest yield and cost benefit ratio among all the treatment followed by Emamectin benzoate 5% SG (190.61 q/ha, 1:10.34), Spinetoram 11.7% SC (150.58 q/ha,1:7.92), Novaluron 10% EC (124.49 q/ha, 1:6.38), Flubendiamide 39.35% SC (104.34 q/ha, 1:4.34), Neem oil 2% @ (85.81 q/ha, 1:3.01) and Beauveria bassiana 1x108 CFU @ (65.83 q/ha1:2.80) as compared to untreated control plot (59.06 q/ha, 1:2.68).