Yield Response of Brassica Varieties/Strains in Relation to Mustard Aphid Lipaphis Erysimi (Kalt.) (Report‪)‬

Byline: Munir Ahmad Shahzad, Syed Aftab Hussain Bukhari, Khawar Jawad Ahmad, Tariq Niaz and Hasan Tariq ABSTRACT: Nine brassica varieties/advanced lines were tested to find out the varietal comparison against mustard aphid Lipaphis erysimi (kalt.) in relation to aphid population, average number of branches/plant, average number of grains per pod and grain yield (kg/ha) during 2004-2006. Minimum aphid population was observed on promising cultivar P-20 during both years 2004-2005 and 2005-06 which were 31 and 23 aphid/30 cm of apical inflorescence from randomly selected five plants respectively.