Ankisetty Yogeeswar* and Ashwanikumar
Department of Entomology, Naini Agricultural Institute,
Sam Higginbottom University of Agriculture, Technology and Sciences,
Prayagraj-211007, India
Email: eswarabhiankisetty123@gmail.com
Received-26.05.2023, Revised-07.06.2023, Accepted-19.06.2023
Abstract: During the Kharif season of 2022, the experiment titled “Comparative efficacy and economics of selected chemicals and Botanicals against gram pod borer [Helicoverpa armigera (Hubner)] on cowpea [Vigna unguiculata (L.) Walp.]” was carried out at the central research farm field was laid out in randomised block design (RBD) with seven treatments and an untreated control plot. The larvae population per plant was counted before spraying, and 3, 7, and 14 days later, all of the treatments tested significantly reduced pest infestation compared to the untreated control.The efficacy findings showed that treatment Chlorantraniliprole 18.5% SC (1.38) had the lowest larval population. The next most effective treatments were Spinosad 45% SC (1.58), 1/2 dose chlorantraniliprole 18.5% SC + Niscosixerplus 2ml/l(1.82),1/2dose Chlorantraniliprole18.5% SC+ Neem oil 5% (2.05), Niscosixerplus 2ml/l (2.17), Neem oil 5% (2.44), and Tobacco leaf Extract 10% (2.65). which was found to be least effective among all treatments, these treatments were found superior over untreated control recording highest larval population (3.87).The best and most cost-effective treatment was Chlorantraniliprole 18.5% SC (1:2.34) and then next effective treatments were Spinosad 45% SC (1:2.03), ½dose Chlorantraniliprole 18.5% SC + Niscosixerplus 2ml/l (1:1.80), ½ dose Chlorantraniliprole 18.5% SC + Neemoil5% (1:1.59), Niscosixerplus 2ml/l (1:1.49), Neemoil 5% (1:1.34), and Tobacco leaf Extract 10% (1:1.13), and the least C: B ratio was recorded in untreated control(1:1.04).
Keywords: Cost Benefit ratio, Cowpea, Helicoverpa armigera, Neem oil
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