Management of diamondback moth (DBM) Plutella xylostella (L.) by bio-pesticides and botanicals

Abstract

The experiment was conducted in Rabi 2023 at Organic Research Farm, under Department of Entomology, Institute of Agricultural Sciences, Bundelkhand University, Jhansi to evaluate the efficacy of bio-pesticides and botanicals against the infestation of diamondback moth (Plutella xylostella L.) in cauliflower. Nine treatments included control (Untreted) were used in 9 plots with 3 replications, all the treatments were sprayed in three times and data collected at 3 days, 7 days and 14 days after applications. The investigation resulted all the treatments were found significantly effective over control. The minimum larval population of DBM was recorded under Bacillus thuringiensis @ 1.5 kg/hac as per with Beauveria bassiana @ 1.5 kg/hac and Neem oil 2% and Metarhizium anisopliae@ 1.5 kg/hac also give similar result as neem oil. The highest crop yield and C:B ratio was obtained under Bacillus thuringiensis @ 1.5 kg/hac (210.89 and 1:3.94) as per with Beauveria bassiana @ 1.5 kg/hac (190.65 and 1:3.48).