Department of Agril. Entomology, College of Agriculture, University of Agricultural Sciences Dharwad - 580 005, India.
Significantly less number of rosette flowers, number of pink bollworm larvae, green boll damage and less exit holes wererecorded in Bt cotton compared to non-Bt cotton. In Bt cotton during peak flowering stage, up to 55% reduction in rosette flowers was noticed. During peak boll development period up to 85 to 75% reduction in pink bollworm larvae and green boll damage was recorded in Bt cotton compared to non-Bt cotton, respectively.
Bt cotton, Pectinophora gossypiella, population dynamics
