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Drop-off patterns for engorged adult females, nymphs and larvae of Rhipicephalus appendiculatus

Published online by Cambridge University Press:  19 September 2011

Esther N. Mwangi ,
Robin M. Newson  and
Godwin P. Kaaya
Esther N. Mwangi
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P. O. Box 30772, Nairobi, Kenya
Robin M. Newson
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P. O. Box 30772, Nairobi, Kenya
Godwin P. Kaaya
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P. O. Box 30772, Nairobi, Kenya
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Abstract

A drop off rhythm of engorged Rhipicephalus appendiculatus Neumann was demonstrated for females and engorged nymphs, but not for larvae. Seventy per cent of 1279 engorged R. appendiculatus females dropped off the animals between 0800 and 1000 hr, while 66% of 2736 engorged nymphs dropped between 1600 and 1800 hr.

Females which were put on the animals at night (2000 hr), started to drop-off 24 hr later, than those put on in the day (0900 hr). Ticks which were fed on tick-sensitized animals also started to drop off 24 hr later, than those on tick-naive animals.

The implications of these results on tick control management are discussed.

Résumé

Rythme de détachement de femelles adultes, de nymphes et larves gorgées de Rhipicephalus appendiculatus. Un rythme de détachement de leurs hôtes de femelles et nymphes Rhipicephalus appendiculatus Neumann gorgées a été déjá décrit mais rien n'a été fait en ce qui concerne les larves. Soixante dix pourcent des 1279 femelles gorgées se détachent des animaux entre 0800 heures et 1000 heures tandis que 66% des 2376 nymphes gorgées tombent entre 1600 heurs et 1800 heures.

Les femelles présentées aux animaux la nuit (20 heures) commencent á se détacher 24 heures après celles qui ont été mises sur les animaux le jour (9 heures). Les tiques nourries sur des animaux déjá sensibilisés commencent á se détacher 24 heures aprés celles nourries sur des animaux n'ay ant jamais eu contact avec des tiques. Les implications que peuvent avoir ces résultats en matière de contrôle de tiques ont été discutées.

Keywords

Rhipicephalus appendiculatusdrop-off rhythmRhipicephalus appendiculatusrythme de détachement
Type
Part II: Symposium on Insect Pests and Sustainable Food Production: Ecology, Biology and Bionomics
Information
International Journal of Tropical Insect Science , Volume 12 , Special Issue 5-6: Aspects of Pest Management in Relation to Agricultural Production and Environmental Conservation in Africa , December 1991 , pp. 627 - 633
Copyright
Copyright © ICIPE 1991

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References

REFERENCES

Balashov, Yu S. (1954) Pecsliarities of the daily rhythm of dropping of engorged female Ixodes persulcatus from cattle. Dokl. Akad. SSSR 98, 317–319. (In Russian).Google Scholar
Chiera, J. W. (1986) Adaptation of field strains of Rhipicephalus appendiculatus Neumann to host resistance to tick infestations. M.Sc. Thesis, University of Nairobi.Google Scholar
Doube, B. M. (1975) Regulation of the circadian rhythm of detachment of engorged larvae and nymphs of the argasid kangaroo tick, Ornithodoros gurneyi. J. Med. Entomol. 12, 15–22.CrossRefGoogle ScholarPubMed
George, J.E. (1971) Drop-off rhythm of engorged rabbit ticks, Haemophysalis leporispalustris. J. Med. Entomol. 8, 461–179.CrossRefGoogle Scholar
Hadani, A. and Rechav, Y. (1969) Tick host relationship. The existence of a circadian rhythm of drop-off of engorged ticks from their hosts. Acta Trop. 26, 173–179.Google ScholarPubMed
Hadani, A. and Rechav, Y. (1970) Tick host relationships II. Factors affecting the circadian rhythm of drop-off of engorged pre-imaginal stages of the tick Hyalomma excavatum from the gerbil Meriones tristrami. Acta Tropica. 27, 184–190.Google Scholar
Kheisin, E. M. and Lavrenenko, L. E. (1956) Duration of blood sucking and diurnal rhythm of nutrition and dropping of females of Ixodes ricinus. Zool. Zhur. 35, 379–383. (In Russian).Google Scholar
Kitaoka, S. (1962) Physiological and ecological studies on some ticks. VIII. Diurnal and nocturnal changes in feeding activity during the blood-sucking progress of Haemaphysalis bispinosa. Nat. Inst. Anim. Healt. Q. 2, 106–111.Google Scholar
Minshull, J. I. (1982) Drop-off rhythms of engorged Rhipicephalus appendiculatus (Acarina: Ixodidae). J. Parasitol. 68, 484–489.CrossRefGoogle ScholarPubMed
Rechav, Y. (1978) Drop-off rhythm of engorged larvae and nymphs of the bont tick, Amblyomma hebraeum (Acari: Ixodidae) and the factors that regulate them. J. Med. Entomol. 14, 667–687.CrossRefGoogle Scholar