author(s)
Aamir Shahzad, Khadija Javed, Humayun Javed, Muhammad Rehan Aslam and Ajmal Khan Kassi

abstract
The present study was conducted for the evaluation of different cauliflower cultivars against Cabbage butterfly Pieris brassicae L. (Pieridae: Lepidoptera) at Barani Agricultural Training Institute Daghal, Rawalpindi during 2006. The data regarding population dynamics of Cabbage butterfly larvae at 10 weeks interval were recorded. The maximum numbers of larvae with 36.33 per leaf were observed on tropical cultivar. The minimum populations of larvae were recorded on Pioneer (23.33) per leaf. The leaf infestation of Tropical cultivar was maximum with 9.08 percent while the minimum infestation was recorded on Pioneer i.e. 5.83 percent. On the basis of these findings the pioneer cultivar is comparatively resistant among all other cultivars of cauliflower.