TITLE:
Developmental Response of Pieris brassicae (L.) (Lepidoptera: Pieridae) on Different Cauliflower Cultivars under Laboratory Conditions
AUTHORS:
Amna Sadozai, Imtiaz Ali Khan
KEYWORDS:
Pieris brassicae, Biology, Cauliflower
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.5 No.18,
August
7,
2014
ABSTRACT:
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.