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Cumulative effects of host resistance on Rhipicephalus appendiculatus Neumann (Acarina: Ixodidae) in the laboratory

Published online by Cambridge University Press:  06 April 2009

J. W. Chiera
Affiliation:
International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi, Kenya
R. M. Newson
Affiliation:
International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi, Kenya
M. P. Cunningham
Affiliation:
International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi, Kenya

Extract

The effect of host resistance on the feeding and development of Rhipicephalus appendiculatus, the African brown ear tick, was investigated. In this 3-host species the percentages of larvae and nymphs engorging on resistant cattle, and also of those subsequently moulting, were significantly less than those of ticks feeding on susceptible rabbits (i.e. without previous tick-feeding experience). The mean weights of engorged larvae, nymphs and females were significantly reduced on resistant hosts. Fewer nymphs and females engorged, even when fed on susceptible hosts, if their previous feed had been on a resistant host, and the engorged weight was also less. If only one feed during the life-cycle was on a resistant host the final egg production was reduced by a factor of 13· 2· and l· for the larval, nymphal and adult feed respectively. The egg production of a tick population with all 3 stages feeding only on resistant hosts could be reduced by more than 98% if these effects were combined.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1985

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References

REFERENCES

Balashov, Y. S. (1972). Bloodsucking ticks (Ixodoidea)–vectors of diseases of man and animals. Miscellaneous Publications of the Entomological Society of America 8, 161376. (Translated from the Russian).Google Scholar
Branagan, D. (1974). The feeding performance of the Ixodid Rhipicephalus appendiculatus Neum. on rabbits, cattle and other hosts. Bulletin of Entomological Research 64, 387400.CrossRefGoogle Scholar
Irvin, A. D., Purnell, R. E. & Peirce, M. (1973). Some observations on the feeding behaviour of the tick Rhipicephalus appendiculatus (Neumann, 1901) on cattle and rabbits in the laboratory. Tropical Animal Health and Production 5, 8796.CrossRefGoogle Scholar
Nuttall, G. H. F. (1913). Rhipicephalus appendiculatus: variation in size and structure due to nutrition. Parasitology 6, 195203.CrossRefGoogle Scholar
Randolph, S. E. (1979). Population regulation in ticks: the role of acquired resistance in natural and unnatural hosts. Parasitology 79, 141–56.CrossRefGoogle ScholarPubMed
Roberts, J. A. (1971). Behaviour of larvae of the cattle tick, Boophilus microplus (Canestrini) on cattle of differing degrees of resistance. Journal of Parasitology 57, 651–6.CrossRefGoogle ScholarPubMed
Sutherst, R. W., Norton, G. A., Barlow, N. D., Conway, G. R., Birley, M. & Comins, H. N. (1979). An analysis of management strategies for cattle tick (Boophilus microplus) control in Australia. Journal of Applied Ecology 16, 359–82.CrossRefGoogle Scholar
Trager, W. (1939). Acquired immunity to ticks. Journal of Parasitology 25, 5781.CrossRefGoogle Scholar
Tukahirwa, E. M. (1976). The feeding behaviour of larvae, nymphs and adults of Rhipicephalus appendiculatus. Parasitology 72, 6574.CrossRefGoogle ScholarPubMed
Winston, P. W. & Bates, D. H. (1960). Saturated solutions for the control of humidity in biological research. Ecology 41, 232–6.CrossRefGoogle Scholar