Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-22T18:53:27.707Z Has data issue: false hasContentIssue false
  • English
  • Français

Survey of predacious soil mites (Acari: Mesostigmata) in citrus orchards of the Nile Delta and Middle Egypt with notes on the abundance of the citrus parasitic nematode Tylenchulus semipenetrans (Tylenchida: Tylenchulidae)

Published online by Cambridge University Press:  28 February 2007

E.M. El-Banhawy ,
A.K. Nasr  and
S.I. Afia
E.M. El-Banhawy*
Affiliation:
Plant Protection Department, National Research Centre, Dokki, Cairo, Egypt
A.K. Nasr
Affiliation:
Plant Protection Department, National Research Centre, Dokki, Cairo, Egypt
S.I. Afia
Affiliation:
Plant Protection Department, National Research Centre, Dokki, Cairo, Egypt
*
*E-mail: [email protected]
Get access

Abstract

Citrus orchards in the Nile Delta and middle Egypt were surveyed for predacious soil mites and parasitic nematodes. There were 16 species of predacious mites and the citrus parasitic nematode, Tylenchulus semipenetrans Cobb. was recorded everywhere. In the medium-heavy soil of the Nile Delta orchards, the general predators or decomposer mites like uropodids were most common. In the light-medium soil of El-Fayoum in middle Egypt, the specialized predator mites like gamasids were most common. In localities where gamasids were common, negligible infestations of citrus parasitic nematodes were reported. Regarding Egypt as a whole, the uropodid mites Uroobovella krantzi (Zaher & Afifi) and Nenteria hypotrichus (El-Borolossy & El-Banhawy) represented about 50% of the sampled mites. The remaining mites were represented by 14 mesostigmatid species, the most common being Gamasiphis pulchellus (Berlese). At least 6% of orchards suffered injurious nematode infestations, 13% critical infestations and 22% moderate infestations, and the remaining 59% were free or with negligible infestations.

Keywords

soil mitesparasitic nematodescitrusTylenchulus semipenetransnatural enemiesuropodidmesostigmatid mites
Type
Research Article
Information
International Journal of Tropical Insect Science , Volume 26 , Issue 1 , March 2006 , pp. 64 - 69
Copyright
Copyright © ICIPE 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Abdel-Gawad, M. M., Youssef, M. M. and Shams Ei-Deen, M. M. (1994) Observations on the population fluctuations of the citrus nematode on calamondin orange in Egypt. Journal of Nematology 12, 87–94.Google Scholar
Afia, S. I. (2002) Effect of fertilization regime on the behaviour of predacious mites toward pest management in citrus orchards. PhD Thesis, Faculty of Science, Ain Shams University. 159 pp.Google Scholar
Bhattacharyya, S. K. (1962) Laboratory studies on the feeding habits and life cycles of soil inhabiting mites. Pedobiologia, Bd 1, 291–298.CrossRefGoogle Scholar
El-Badry, E. A. (1972) Observations on the biology of Pergamasus crassipes (L.), a predacious gamasid mite inhabiting forest soils in Bavaria (Acarina: Mesostigmata: Parasitidae). Zeitschrift für Angewandte Entomologie-Journal of Applied Entomology 71, 296–303.CrossRefGoogle Scholar
El-Banhawy, E. M., Carter, N. and Wynne, I. R. (1993) Preliminary observations on the population development of anystid and free-living mesostigmatic mites in a cereal field in South England. Experimental and Applied Acarology 17, 541–549.CrossRefGoogle Scholar
El-Banhawy, E. M., El-Borolossy, M. A., El-Sawaf, B. M. and Afia, S. I. (1997a) Biological aspects and feeding behaviour of the soil predacious mite Nenteria hypotrichus (Uropodina: Uropodidae). Acarologia 38, 357–360.Google Scholar
El-Banhawy, E. M., Osman, H. A., El-Sawaf, B. M. and Afia, S. I. (1997b) Interaction of soil predacious mites and citrus nematodes (parasitic and saprophytic) in citrus orchard under different regime of fertilizers. The effect on the population densities and citrus yield. Anzeiger für Schädlingskunde Pflazenschutz Unweltshutz 70, 20–23.CrossRefGoogle Scholar
El-Banhawy, E. M., El-Borolossy, M. A. and Afia, S. I. (1998a) Effect of the nematicide carbofuran on the population development of the citrus parasitic nematode. Tylenchulus semipenetrans and predacious soil mites in citrus orchard under organic manure regime of fertilization. Anzeiger für Schädlingskunde Pflazenschutz Unweltshutz 71, 69–71.CrossRefGoogle Scholar
El-Banhawy, E. M., El-Borolossy, M. A., El-Sawaf, B. M. and Afia, S. I. (1998b) Effect of organic and chemical fertilization on the distribution of predacious soil mites and nematodes (parasitic and saprophytic) in citrus orchard. Egyptian Journal of Biological Control 8, 89–96.Google Scholar
El-Banhawy, E. M., El-Sawaf, B. M., Osman, H. A. and Afia, S. I. (1999) Effect of type of prey on the life parameters of the soil predacious mite. Gamasiphis tylophagous (Mesostigmata: Ologamasidae), a predator of the citrus parasitic nematode, Tylenchulus semipenetrans (Tylenchida: Tylenchulidae). Acarologia 40, 25–28.Google Scholar
Evans, G. O. and Till, W. M. (1979) Mesostigmatic mites of Britain and Ireland (Chelicerata: Acari: Parasitiformes). An introduction to their external morphology and classifications. Transactions of the Zoological Society of London 35, 139–270.CrossRefGoogle Scholar
Habeersaat, U. (1989) The importance of predatory soil mites as predators of agricultural pests, with special reference to Hypoaspis angusta Karg, 1965 (Acari: Gamasina). Doctoral Thesis, Federal Institute of Technology, Zurich, Switzerland.Google Scholar
Jenkins, W. R. (1964) A rapid centrifugal-flotation technique for separating nematodes from soil. Plant Disease Reporter 48, 692.Google Scholar
Karg, W. (1983) Vebreitung und Bedeutung von Raubmilben der Cohors Gamasina Als Antagonisten von Nematoden. Pedobiologia 25, 419–432.CrossRefGoogle Scholar
Karg, W. (1986) Vorkommen und Ernährung der Milben Cohors Uropodina (Schildkrötenmilben) Sowie ihre Eignung als Indikatoren in Agroökosystemen. Pedobiologia 29, 285–295.CrossRefGoogle Scholar
Krantz, G. W. (1978) A Manual of Acarology (2nd edn). Corvallis Oregon State University, Bookstores, Inc 509 pp.Google Scholar
Meyer, M. K. P. and Ueckermann, E. A. (1987) A taxonomic study of some Anystidae (Acari: Prostigmata). Entomological Memoirs Department of Agriculture and Water Supply, Republic of South Africa. Number 68, 37 pp.Google Scholar
Morris, H. M. (1922) The insects and other invertebrate fauna of arable land at Rothamsted. Annals of Applied Biology 9, 282–305.CrossRefGoogle Scholar
Sharma, R. D. (1971) Studies on the plant parasitic nematode, Tylenchorhynchus dubius. Mededelingen, Landbouwhogeschool Wageningen 71, 1–154.Google Scholar
Walter, D. E. and Ikonen, E. K. (1989) Species, guilds and functional groups: Taxonomy and behaviour in nematophagous arthropods. Journal of Nematology 21, 315–327.Google ScholarPubMed
Walter, D. E. and Lindquist, E. E. (1989) Life history and behaviour of mites in the genus Lasioseius (Acari: Mesostigmata: Ascidae) from grassland soils in Colorado, with taxonomic notes and description of a new species. Canadian Journal of Zoology 67, 2797–2813.CrossRefGoogle Scholar
Zaher, M. A. (1986) Survey and ecological studies on phytophagous, predacious and soil mites in Egypt. II A: Predacious and non-phytophagous mites (Nile Valley and Delta). Faculty of Agriculture, Cairo University. 567 pp.Google Scholar