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Journal of Entomology
  Year: 2014 | Volume: 11 | Issue: 3 | Page No.: 127-141
DOI: 10.3923/je.2014.127.141
 
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Performance of the Aphid Parasitoid, Diaeretiella rapae (M’Intosh) towards Certain Aphid Species in Egypt

A.A.A. Saleh and M.M.A. Khedr

Abstract:
Survey and population of the aphid species Brevicoryne brassicae L., Aphis craccivora (Koch), Aphis nerii Boyer de Fonscolombe., Hyalopterus pruni (Geoffroy) and Hypermoyzus lactucae L. and its parasitoids were studied at Kafr Saqr district during two successive seasons 2011-2013. Obtained results and showed that Diaeretiella rapae (M’Intosh) was the dominant on aphid species in this study, where it occupied 81.79, 55.25, 51.20, 54.95% and 86.94, 63.77, 52.61, 52.53% on aphid species, B. brassicae, A. craccivora, A. nerii and H. pruni during the two seasons, respectively. The mean percentages of parasitism were 39.32, 9.14, 16.08, 4.66 and 43.45, 8.68, 13.22, 5.37 on the same aphid species on cabbage, faba bean, dafla and reed plants in both seasons, respectively. Total developmental times (Sting-Adult) were 15.58±0.69, 12.17±0.75, 17.52±0.70 and 15.37±0.71 days. Sex ratio were (Female:Male) 1.2:1, 1.07:1, 1.014:1 and 1:1.09 on last aphid species, respectively during the two seasons. A significant positive relationship was found between higher parasitism percentages of D. rapae and higher nutrient composition of both total lipids and free amino acids in tested aphids.
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How to cite this article:

A.A.A. Saleh and M.M.A. Khedr, 2014. Performance of the Aphid Parasitoid, Diaeretiella rapae (M’Intosh) towards Certain Aphid Species in Egypt. Journal of Entomology, 11: 127-141.

DOI: 10.3923/je.2014.127.141

URL: https://scialert.net/abstract/?doi=je.2014.127.141

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