1Department of Plant Protection, Chaudhary Charan Singh University, Meerut - 250 001, Uttar Pradesh, India
2Department of Entomology, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut - 250 110, Uttar Pradesh, India
Faculty of Agricultural Sciences, G.L.A. University, Mathura-281 406, Uttar Pradesh, India
*Corresponding authors' E-mail: sushant.kumar@gla.ac.in, ksushant020@gmail.com
Online published on 26 September, 2025.
This study evaluated the bio-efficacy of the entomopathogenic nematode Heterorhabditis indica against O. obesus under laboratory conditions. Infective juveniles (IJs) of H. indica were isolated from soil samples collected in Meerut, India and identified morphologically. Laboratory bioassays were conducted using varying concentrations of IJs (0-600 IJs/larva) applied to termite larvae and mortality was recorded at 24, 48, 72 and 96 h post-application. Results indicated a significant dose- and time-dependent increase in termite mortality, with 100% mortality achieved at 500 and 600 IJs/larva within 48 h. Statistical analysis confirmed significant differences among treatments (P < 0.05). These findings demonstrate that H. indica possesses high virulence against O. obesus.
Biological control and termite management, Entomopathogenic nematodes, Heterorhabditis indica, Odontotermes obesus
