Department of Entomology, Punjab Agricultural University, Ludhiana-141 004, India
*Email id: neha_sharma429@yahoo.com
Online published on 10 September, 2014.
The overall diversity index of arthropod fauna was higher in non-Bt (1.93) followed by RCH 134 BG-I (1.86) plots. This diversity in RCH 134 BG-I and non-Bt was due to greater evenness indices (0.894–0.808). In Mansa, the arthropod diversity was maximum in non-Bt plots (1.73) followed by BG-II (0.86) and BG-II while the dominance parameter was prominent in vegetative phase of the cotton crop in BG-I (0.56).
Bt cotton, Diversity index, Gossypium hirsutum
