Cauliflower is popular vegetable in Pakistan and it is severely attacked by Pieris brassicae (L). There are different cauliflower cultivars available in this area. The aim of this study was to determine the developmental response of Pieris brassicae on ten cauliflower cultivars. An experiment was conducted during 2012-13 at the Entomology section of the Agriculture Research Institute Tarnab Peshawar under laboratory conditions of 20°C ± 2°C, 50% ± 5% RH and 12:12h photoperiod. Pieris brassicae eggs were collected from a cauliflower field ARI Tarnab and the larvae placed after hatching on fresh leaves often cauliflower cultivars. The results showed that the larval development of P. brassicae was short (35 days), longer larval length (32.41 mm), larval mortality was low (6.6%) and pupal weight was high (0.50 g) on Clima cultivar. On the other hand, a longer larval developmental period (37 days), higher larval mortality (86.66%), shorter larval length (24.55 mm) and lower pupal weight (0.42 g) were recorded on cultivar AX-2034.
 Sharma, S.R., Singh P.K., Chable and Tripathi, V. (2004) A Review of Hybrid Cauliflower Development. Journal of New Seeds, 6, 151-159.
 Jogar, K., Metspalu, L., Heiisaar, K., Luik, A., Martin, A.J., Mand, M., Jaaniso, R. and Kuusik, A. (2005) Physiology of Diapause in Pupae of Pieris brassicae L. (Lepidoptera: Pieridae). Agronomy Research, 3, 21-37.
 Someya, H., Takano, S., Tatematsu, Y., Hayase, T., Kawabata, J. and Imamura, T. (2007) Effects of Some Insecticides on Mortality of Pieris brassicae (Linnaeus) (Lepidoptera: Pieridae). Research Bulletin of the Plant Protection Service, 43, 33-35.
 Ovsyannikova, E.I. and Grichanov, I.YA. (2009) Interactive Agricultural Ecological Atlas of Russia and Neighboring Countries. Economic Plants and their Diseases, Pests and Weeds.
 Hasan, F. and Ansari, M.S. (2010) Effect of Different Cole Crops on the Biological Parameters of Pieris brassicae (L.) (Lepidoptera: Pieridae) under Laboratory Conditions. Journal of Crop Science and Biotechnology, 13, 195-202.
 Arshad, A. and Rizvi, P.Q. (2007) Developmental Response of Cabbage Butterfly, Pieris brassicae L. (Lepidoptera: Pieridae) on Different Cole Crops under Laboratory and Field Conditions. Asian Journal of Plant Sciences, 6, 12-41.
 Lal, O.P. (1991) Studies on Field Resistance of Different Cultivars and Crosses of Cabbage against Cabbage Caterpillar, Pieris brassicae (L). (Lepidoptera: Pieridae). Zeitschrift füer Pflanzenkrankheiten und Pflanzenschutz, 98, 293-300.
 Aslam, M.N., Aslam, M. and Shaheen, F.A. (2000) Preference of Pieris brassicae (Linnaeus) (Lepidoptera, Pieridae) on Different Brassica Genotypes under Field Conditions. Pakistan Journal of Biological Sciences, 3, 1339-1340.
 Bhubaneshawari, M., Kananbala, A., Joymati, L., Ronikumar, L. and Binarani, A. (2012) Morphometric Measurement of Cabbage Butterfly Pieris brassicae(L.) (Lepidoptera: Pieridae) in the Agro-Ecosystem of Manipur. International Journal of Basic and Applied Medical Sciences, 2, 31-33.
 Shternshis, M.V., Andreeva, I.V. and Shatalova, E.I. (2012) The Influence of Host Plants on Herbivore Community Composition on Brassica Crops in Western Siberia. ISRN Botany, 2012, Article ID: 682474.