SURVEY AND DYNAMICS OF NATURAL ENEMIES OF THE MEDITERRANEAN BLACK SCALE, SAISSETIA OLEAE (HOMOPTERA: COCCIDAE) IN EGYPT | ||||
Egyptian Journal of Agricultural Research | ||||
Article 9, Volume 81, Issue 1, March 2003, Page 113-123 PDF (2.41 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejar.2003.276078 | ||||
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Authors | ||||
SHAABAN ABD-RABOU1; ADEL A. HAFEZ2; HODA BADARYI1 | ||||
1Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt | ||||
2Department of Plant Protection, Faculty of Agriculture, Moshtohor, Zagazig University, Benha branch, Egypt | ||||
Abstract | ||||
Twenty nine natural enemies were associated to this pest (11 parasitoids and 18 predators). Population dynamics of recorded five hymenopterus parasitoids [i.e. Metaphycus bartletti Annecke & Mynhardt, M. ilavus (Howard), Microterys (lavas (Howard), Diversinervus elegans (Silvestri) and Scutellista cyaneae (Mots.)) were studied in a Northern Coast site during 1998-1999 and 19992000. M. bartletti was the most effective parasitoid of Saissetia Wen on olive trees with maximum rates of parasitism of 23.0 and 24.5% during 1998-1999 and 1999-2000, respectively. The population dynamics of 6 predators were studied at the same site. Two peaks were recorded annually for Chilocorus bipustulatus L., Chrysoperla carneae (Stephens), Coccinella undecimpunctate (L.), Orius sp., and Scymnus syriacus Mars. Exochomus flavipes Thrum and Orius sp., were recorded at low populations throughout the two considered years, respectively. | ||||
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