Abstract:The study entitled “Comparative efficacy and economics of selected biopesticides with Chlorantraniliprole against diamondback moth (
Plutella xylostella L.) on cabbage (
Brassica oleracea L.) was conducted during the
rabi season from November 2022 to March 2023 at Crop Research Farm, SHUATS, Prayagraj, U.P. Eight treatments, including Chlorantraniliprole 18.5 SC, 1/2 Dose Chlorantraniliprole + Niscosixer plus, Spinosad 45 SC, Niscosixer plus, NSKE 5%, Azadirachtin 0.15% EC,
Beauveria bassiana 1.15% WP, and untreated control, were used against
Plutella xylostella on three replications in randomized block design.
Chlorantraniliprole 18.5 SC showed the highest percentage of population reduction of diamondback moth larvae against control (78.37%), followed by Spinosad 45 SC (73.06%) and 1/2 Dose Chlorantraniliprole + Niscosixer plus (60.41%). The least reduction was observed in Niscosixer plus (41.63%). The mean crop yield ranged between 11.00 t/ha to 25.25 t/ha in the insecticidal treatment, with Chlorantraniliprole 18.5 SC showing the highest yield (25.25 t/ha) followed by Spinosad 45 SC (23.52 t/ha). The C: B ratio varied from 1:1.07 to 1:2.32 in different insecticidal treatments, with Chlorantraniliprole 18.5 SC showing the highest ratio of 1:2.32.