Abstract
A field trial was conducted at Central Research Farm (CRF), SHUATS, Prayagraj, Uttar Pradesh during the Kharif season of 2021. The field was laid in a Randomized Block Design (RBD) replicated thrice with seven treatments. The larval population per plant was taken as the first spray and second spray on one day before spraying and 3rd,7th and 14th day after each spray all the treatments tested and found to significantly reduced the larval population compared to control. The results of the efficacy showed that the mean larval population recorded in the treatment Chlorantraniliprole 18.5 SC (3.45%), was most effective. The next effective treatments was Spinosad 45 SC (3.70%) followed by Emamectin benzoate (3.80%), Metarihizium anisopliae (4.00%), Neem oil (4.15%), Karanj oil (4.30%) as compared to Control (7.10%). The best and most economical treatment in terms of yield and B: C ratio was Chlorantraniliprole 18.5SC (20.98q/ha and 1:3.99). It was followed by Spinosad 45SC (20.62 q/ha and 1:3.92). Emamectin benzoate 5% SG (17.45 q/ha and 1:3.84), Metarhizium anisopliae (17.01 q/ha and 1:3.83), Neem oil 5% (16.6 q/ha and 1:3.61), Karanj oil 5% (15.13 q/ha and 1:3.46), as compared to control (9.5q/ha and1:2.28).
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