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Khattab, M., Nassef, A. (2009). SEASONAL ABUNDANCE OF APHIDS, Nezara viridula L. AND ASSOCIATED NATURAL ENEMIES IN WHEAT FIELDS AT KAFR EL-SHEIKH GOVERNORATE. Journal of Plant Protection and Pathology, 34(3), 2261-2267. doi: 10.21608/jppp.2009.122780
M. A. Khattab; A. M. Nassef. "SEASONAL ABUNDANCE OF APHIDS, Nezara viridula L. AND ASSOCIATED NATURAL ENEMIES IN WHEAT FIELDS AT KAFR EL-SHEIKH GOVERNORATE". Journal of Plant Protection and Pathology, 34, 3, 2009, 2261-2267. doi: 10.21608/jppp.2009.122780
Khattab, M., Nassef, A. (2009). 'SEASONAL ABUNDANCE OF APHIDS, Nezara viridula L. AND ASSOCIATED NATURAL ENEMIES IN WHEAT FIELDS AT KAFR EL-SHEIKH GOVERNORATE', Journal of Plant Protection and Pathology, 34(3), pp. 2261-2267. doi: 10.21608/jppp.2009.122780
Khattab, M., Nassef, A. SEASONAL ABUNDANCE OF APHIDS, Nezara viridula L. AND ASSOCIATED NATURAL ENEMIES IN WHEAT FIELDS AT KAFR EL-SHEIKH GOVERNORATE. Journal of Plant Protection and Pathology, 2009; 34(3): 2261-2267. doi: 10.21608/jppp.2009.122780

SEASONAL ABUNDANCE OF APHIDS, Nezara viridula L. AND ASSOCIATED NATURAL ENEMIES IN WHEAT FIELDS AT KAFR EL-SHEIKH GOVERNORATE

Article 12, Volume 34, Issue 3, March 2009, Page 2261-2267  XML PDF (405.22 K)
Document Type: Original Article
DOI: 10.21608/jppp.2009.122780
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Authors
M. A. Khattab; A. M. Nassef
Plant Protection Research Institute , ARC, Giza, Egypt
Abstract
     Field experiments were conducted at Farm of Sakha Agricultural Research Station, Kafr El-Sheikh A. R. of Egypt during 2005/06 and 2006/07 seasons to study the population abundance of Aphis spp. , Nezara viridula L. and the common associated natural enemies on wheat plants.  
      The obtained data indicated that, the population density of aphids, N. viridula and the common predators on wheat plants were significantly higher in the first season than in the second one.  Also, maximum number of these insects took place during March. The associated predators with the two insects  ( aphids and the green stink bug ) appeared earlier than the parasitism especially in the second season  The common predators were true spiders ; Syrphus sp.; Chrysoperlla carnea Steph.; Paederus alferii Koch. and Scymnus spp.  The first species was the most dominant.    The rate of parasitism on aphids and N. viridula eggs did not differ significantly in the two study seasons and the high rate of parasitism was observed during March coinciding with the highest period of two insects infestation during the two seasons.
  Thus, these results on the seasonal abundance of the two insects and the natural enemies in wheat fields will be useful in developing pest management programs.  
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