1Department of Agricultural Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri, 413722, Maharashtra, India
*Email: charudatta.abs@gmail.com (corresponding author): ORCID ID 0000-0002-5619-8162
Online published on 4 April, 2025.
In this study, Metarhizium rileyi formulation was applied using four methods and their efficacy evaluated at different concentrations against the fall army worm Spodoptera frugiperda (J E Smith) in maize. The treatment of dusting of M. rileyi 1.15 % WP @ 2.5 kg/ ha followed by spraying of M. rileyi 1.15 % WP @ 5 g/ l was found superior. It was also observed that sole spraying and dusting treatment were comparatively less effective than dusting followed by spraying. Dusting of M. rileyi 1.15 % WP @ 2.5 kg/ ha followed by spraying of M. rileyi 1.15 % WP @ 5 g/ l gave the maximum cost benefit (ICBR of 8.70) and grain yield (61.09 q/ ha).
Spodoptera frugiperda, Metarhizium rileyi, Whorl application, Dusting, Spraying, Bacillus thuringiensis, Azadirachtin, Maize, Plant damage, Cost benefits, Yield, ICBR
