Vol. 11, Issue 8 (2022)

Author(s):
Gadhe Krushna Ravsaheb and Anoorag R Tayde

Abstract:
The present investigation was carried out at Central Research Farm, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, during the Rabi season of 2021-22. The experiment was laid in Randomized Block Design, which consists of eight treatments viz, Emamectin benzoate 5% SG @ 0.4 gm/lit, Chlorantraniliprole 18.5 SC @ 0.3 ml/lit, Novaluron 10 EC @ 2 ml/lit, Spinosad 45 SC @ 0.5 ml/lit, Beauveria bassiana 1.15% WP @1gm/lit, Karanj oil 2% @ 20 ml/lit, Neem oil 2% @ 20 ml/lit and untreated control. The study revealed that all the treatments were found to be significantly superior to the control. The results showed that after two sprays, the plot treated with Chlorantraniliprole 18.5 SC recorded the lowest overall mean larval population (2.45) and was the most effective treatment, followed by Spinosad 45 SC (2.80), Emamectin benzoate 5% SG (2.95), Novaluron 10 EC (3.18), Beauveria bassiana 1.15% WP (3.43), Neem oil 2% (3.53), Karanj oil 2% (3.70) as compared to untreated control plot (6.00). The crop yield ranged between 245.51 q/ha to 65.20 q/ha in the treatments. The plot treated with Chlorantraniliprole 18.5 SC showed highest yield (245.51 q/ha) followed by Spinosad 45 SC (230.15 q/ha), Emamectin benzoate 5% SG (190.30 q/ha), Novaluron 10 EC (170.20 q/ha), Beauveria bassiana 1.15% WP (150.30 q/ha), Neem oil 2% (142.00 q/ha), Karanj oil 2% (122.45 q/ha) as compared to untreated control plot (65.20 q/ha). Among the treatments Chlorantraniliprole 18.5 SC was most economical treatment and recorded highest cost-benefit ratio (1:4.00), followed by Spinosad 45 SC (1:3.60), Emamectin benzoate 5% SG (1:3.25), Novaluron 10 EC (1:2.77), Beauveria bassiana 1.15% WP (1:2.58), Neem oil 2% (1:2.15) and Karanj oil 2% (1:1.97) as compared to untreated control (1:1.14).