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Occurrence of Coelomomyces indicus, a fungal pathogen of malaria mosquito vector, Anopheles gambiae complex along the Kenya coast

Published online by Cambridge University Press:  08 April 2017

W. A. Otieno
Affiliation:
Biological Control Section, The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30, Mbita, Kenya
M. O. Odindo
Affiliation:
Biological Control Section, The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30, Mbita, Kenya
D. M. Sabwa
Affiliation:
Biological Control Section, The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30, Mbita, Kenya
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Abstract

A survey of the natural enemies of the main malaria vector in Kenya, Anopheles gambiae Giles, revealed the occurrence of a fungal pathogen in field populations of mosquito larvae. Light and scanning electron microscopy was used in the examination of sporangia of the fungus in determining its identity as Coelomomyces indicus Iyengar (Order: Blastocladiales; Family: Coelomomycetaceae). The resting sporangia were found in the thoracic and abdominal cavities of the larvae. A mortality of 63% or higher was found to occur among the larvae of A. gambiae in a two season observation along the Kenyan coast. The authors stress the need for more intensified ecological and laboratory studies aimed at developing C. indicus as a biocontrol agent.

Type
Research Articles
Copyright
Copyright © ICIPE 1985

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References

REFERENCES

Bland, C. E. and Couch, J. N. (1973) Scanning electron microscopy of sporangia of Coelomomyces. Can. J. Bot. 51, 13251330.CrossRefGoogle Scholar
Couch, J. N. (1945) Revision of the genus Coelomomyces parasitic in insect larvae. J. Elisha Mitchell scient. Soc. 61, 124136.Google Scholar
Dubitskij, A. M. (1976) The discovery in mosquito larvae of a fungus of the genus Coelomomyces in Southeastern Kazakhstan. Medskaya Parizit. 39, 737738.Google Scholar
Federici, B. A. (1981) Mosquito control by Culicimomyces, Lagenidium and Coelomomyces. In Microbial Control of Pests and Plant Diseases 1970–1980 (Edited by Burges, H. D.), pp. 555572. Academic Press, New York.Google Scholar
Gad, A. M., Sadek, S. and Fateen, Y. A. (1967) The occurrence of Coelomomyces indicus Iyengar in Egypt, U.A.R. Mosquito News 27, 201202.Google Scholar
Gad, A. M. and Sadek, S. (1968) Experimental infection of Anopheles pharoensis larvae with Coelomomyces indicus. J. Egypt. Publ. Hlth Ass. 43, 387391.Google Scholar
Haddow, A. J. (1942) The mosquito fauna and climate of the native huts at Kisumu, Kenya. Bull. ent. Res. 33, 91142.CrossRefGoogle Scholar
Iyengar, M. O. T. (1935) The new fungi of the genus Coelomomyces parasitic in the larvae of Anopheles. Parasitology 27, 440449.CrossRefGoogle Scholar
Keilin, D. (1921) On a new type of fungus: Coelomomyces stegomyiae n.g., n. sp., parasitic in the body-cavity of the larva of Stegomyia scutellaris Walker (Diptera, Nematocera, Culicidae). Parasitology 13, 225234.CrossRefGoogle Scholar
Laird, M. (1959) Fungal parasites on mosquito larvae from the Oriental and Australian regions, with a key to the genus Coelomomyces (Blastocladiales: Coelomomycetaceae). Can. J. Zool. 37, 781791.CrossRefGoogle Scholar
Laird, M. (1960) Coelomomyces and the biological control of mosquitoes. In Conference on Biological Control of Insects of Medical Importance. American Institute of Biological Science, Technical Report (unnumbered).Google Scholar
Muspratt, J. (1946) On Coelomomyces fungi causing high mortality of Anopheles gambiae larvae in Rhodesia. Ann. trop. Med. Parasit. 40, 1017.CrossRefGoogle ScholarPubMed
Muspratt, J. (1962) Destruction of the larvae of Anopheles gambiae Giles by a Coelomomyces fungus. WHO/EBL 52, 123.Google Scholar
Muspratt, J. (1963) Destruction of the larvae of Anopheles gambiae Giles by a Coelomomyces fungus. Bull. Wld Hlth Org. 29, 81126.Google ScholarPubMed
Ribeiro, H., Ramos, C. H. and Pires, C. A. (1981) First records of Coelomomyces and Mermithids in mosquitoes of Angola, Africa. Mosquito News 41, 381.Google Scholar
Service, M. W. (1973) Mortalities of the larvae of the Anopheles Giles complex and detection of predators by the precipitin test. Bull. ent. Res. 62, 359369.CrossRefGoogle Scholar
Service, M. W. (1977) Mortalities of the immature stages of species B of the Anopheles gambiae complex in Kenya: Comparison between rice fields and temporary pools, identification of predators, and effects of insecticidal spraying. J. med. Ent. 13, 535545.CrossRefGoogle ScholarPubMed
Umphlett, C. T. (1968) Ecology of Coelomomyces infections of mosquito larvae. J. Elisha Mitchell scient. Soc. 84, 108114.Google Scholar
Umphlett, C. J. (1969) Infection of Coelomomyces puntatus, an aquatic fungus parasite, in a natural population of the common malaria mosquito Anopheles quadrimaculatus. J. Invertebr. Path. 15, 299305.CrossRefGoogle Scholar
Walker, A. J. (1938) Fungal infections of mosquitoes, especially of Anopheles costalis. Ann. trop Med. Parasit. 32, 231244.CrossRefGoogle Scholar
White, G. B. and Rosen, P. (1973) Comparative studies on sibling species of the Anopheles gambiae Giles complex (Dipt: Culicidae), 11. Ecology of species A and B in savanna around Kaduna, Nigeria, during the transition from wet to dry season. Bull. ent. Res. 62, 613625.CrossRefGoogle Scholar