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Articles by Humayun Javed
Total Records ( 2 ) for Humayun Javed
  Humayun Javed and Muhammad Afzal
  This study was conducted to find out the developmental and reproductive potential of Lysiphebus ambiguus. None of the aphid species supported complete development of L. ambiguus despite oviposition by the parasitoid except sipha maydis. Maximum number of aphids were parasitized on the consecutive days. Percent emergence from S. maydis parasitized was decreasing from first towards the last day. Being a very specific strain with restricted host range, a stable sex ratio provides significant advantages in survival under less favorable conditions.
  Humayun Javed and Mubashir Hussain Gondal
  The study was carried out to determine the effect of 0.2 % N in combination with different doses of ascorbic acid (0.025, 0.075, 0.100, 0.125 and 0.150%) on larval growth and silk production of silk worm larvae (Bombyx mori L.). The larvae were fed on mulberry leaves treated with given doses of nitrogen and ascorbic acid throughout the larval period. It was observed that all the growth parameter were influenced by food supplementation. The larvae which were offered mulberry leaves treated with 0.2% N + 0.150% ascorbic acid showed lower mean values of body weight, body length, food consumption, coefficient of utilization and cocoon shell ratio but higher mortality rate.
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