Efficacy of Steinernema feltiae filipjev, native entomopathogenic nematode Kushidai Mamiya and their bacterial symbionts against Cnaphalocrocis medinalis guenee

The current study highlights the importance of entomopathogenic nematode (EPN), their bacterial symbionts and their combined efficacy along with Bacillus thuringiensis (Bt) in C. medinalis management. In the field experiment conducted at Thenthiruperai, Xenorhabdus bovienii+ Bt and X. japonica combined with Bt found to be more effective with 80.54 per cent and 79.37 per cent reduction in larval population over untreated control respectively.