Division of Entomology, Indian Agricultural Research Institute, New Delhi-110012
* Correspondence: ICAR Research Complex for NEH Region, Barapani, Meghalaya-793103
Online published on 15 October, 2011.
The third instar larvae of Spodoptera litura obtained from Kapurthala were 20.74, 15.46, 12.9, 9.59 and 7.05 and 16.74, 13.22, 21.18, 11.50 and 4.83-fold resistant to deltamethrin, alphacypermethrin, cypermethrin, β-cyfluthrin and fenvalerate, respectively, when applied by direct spray and leaf dip method, respectively, as compared to Delhi population. Regardless of method of application β-cyfluthrin was most effective against Delhi and Kapurthala population.
Spodoptera litura, susceptibility, relative resistance, synthetic pyrethroids
