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El-Hawary, I., Farrag, Z., Hendawy, A., Anbar, H., Salem, F. (2010). INSECT PREDATORS ASSOCIATED WITH SCALE INSECTS AND MEALYBUGS ON NAVEL ORANGE TREES AT KAFR EL-SHEIKH AND GHARBIA GOVERNORATES. Journal of Plant Protection and Pathology, 1(11), 899-908. doi: 10.21608/jppp.2010.86954
I. S. El-Hawary; Z. S. Farrag; A. S. Hendawy; H. A. Anbar; F. A. Salem. "INSECT PREDATORS ASSOCIATED WITH SCALE INSECTS AND MEALYBUGS ON NAVEL ORANGE TREES AT KAFR EL-SHEIKH AND GHARBIA GOVERNORATES". Journal of Plant Protection and Pathology, 1, 11, 2010, 899-908. doi: 10.21608/jppp.2010.86954
El-Hawary, I., Farrag, Z., Hendawy, A., Anbar, H., Salem, F. (2010). 'INSECT PREDATORS ASSOCIATED WITH SCALE INSECTS AND MEALYBUGS ON NAVEL ORANGE TREES AT KAFR EL-SHEIKH AND GHARBIA GOVERNORATES', Journal of Plant Protection and Pathology, 1(11), pp. 899-908. doi: 10.21608/jppp.2010.86954
El-Hawary, I., Farrag, Z., Hendawy, A., Anbar, H., Salem, F. INSECT PREDATORS ASSOCIATED WITH SCALE INSECTS AND MEALYBUGS ON NAVEL ORANGE TREES AT KAFR EL-SHEIKH AND GHARBIA GOVERNORATES. Journal of Plant Protection and Pathology, 2010; 1(11): 899-908. doi: 10.21608/jppp.2010.86954

INSECT PREDATORS ASSOCIATED WITH SCALE INSECTS AND MEALYBUGS ON NAVEL ORANGE TREES AT KAFR EL-SHEIKH AND GHARBIA GOVERNORATES

Article 6, Volume 1, Issue 11, November 2010, Page 899-908  XML PDF (359.63 K)
Document Type: Original Article
DOI: 10.21608/jppp.2010.86954
Authors
I. S. El-Hawary1; Z. S. Farrag1; A. S. Hendawy2; H. A. Anbar1; F. A. Salem2
1Plant Protection Dept., Fac. Agric., Tanta Univ.
2Biological Control Res. Dept., Plant Protection Res. Inst., Agricultural Res. Center.
Abstract
Studies were carried out at naval orange orchards, at Kafr El-Sheikh and Gharbia Governorates from April 1st, 2005 up to March 15th, 2007. The studies aimed to survey the arthropod predators associated with scale insects and mealybugs. The population fluctuations of these predators were monitored. Biweekly samples of arthropods were taken using a cloth bag (75 cm long) that harboured the sampled branch of a tree. The identified predators were six coccinllieds; Chilocorus bipustulatus L., Exochomus flavipes Thumberg, Rodalia cardinalis Mulsant, Nephus includens Kirsch, (=Scymnus includens) Scymnus pallidivestis Mulsant, S. syriacus Marseal; as well as one chrysopid, Chrysoperla carnea Steph. and the true spider, Cheiracanthium jovium Denis. At both locations, the most occurring predators were C. bipustulatus and Scymnus spp., while the lowest one was Exhochomus flavipes. whichpeaked on May 1st, June 1st and October 15th, while Scymnus spp. peaked on mid-April and mid-September. Three peaks were recorded for R. cardinalis at early May, mid-September and mid-December.
Keywords
Arthropod; predators; scale insects; mealybugs; navel orange; kafr El-Sheikh; Gharbia
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