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Abstract

In South Africa, Babesia bovis is transmitted only by Boophilus microplus (Can.), but Babesia bigemina is transmitted by both Boophilus microplus and B. decoloratus (Koch), the latter being the more widespread there of the 2 tick species. Babesia bigemina causes heavy economic losses of cattle in...

Author(s)
Vos, A. J. de; Every, R.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 57-60
Abstract

Lactating Sanga cows of the Mashona breed from Zimbabwe, receiving either a low or a high level of nutritional supplement, were exposed to 2 levels of infestation of adult R. appendiculatus in the highveld of Zimbabwe. The effect of the ticks on the milk yield was measured over an 11-week period...

Author(s)
Norval, R. A. I.; Sutherst, R. W.; Kurki, J.; Kerr, J. D.; Gibson, J. D.
Citation
Medical and Veterinary Entomology, 1997, 11, 2, pp 148-154
Abstract

In Australia, selection has been made for resistance to Boophilus microplus (Can.) in a population of Zebu crossbred dairy cattle as part of a programme of animal breeding designed to develop a tropical breed of dairy cattle. Resistance to this tick has been increased by selection of animals with...

Author(s)
Hewetson, R. W.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 91-93
Abstract

In this discussion of the control or prevention of tick-transmitted diseases of cattle in South Africa, with special reference to heartwater, [caused by Cowdria ruminantium] redwater [caused by Babesia] and anaplasmosis [caused by Anaplasma], the authors make the distinction between areas where the ...

Author(s)
Howell, C. J.; Vos, A. J. de; Bezuidenhout, J. D.; Potgieter, F. T.; Barrowman, P. R.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 61-66
Abstract

In studies in South Africa, the efficiency of the conventional method of treatment in a mechanical cattle spray race in controlling the distribution of acaricidal deposit on a sprayed herd was compared on 5 occasions in the same spray race with that of a constant replenishment method. Ixodid ticks...

Author(s)
Ratley, C. V.; Baker, J. A. F.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 159-164
Abstract

A large-scale survey was carried out in 1973-76 along a line transect in Sukumaland bordering Lake Victoria, Tanzania, to determine the limit of the distribution of ticks in this area in order to begin studies in an area where Rhipicephalus appendiculatus Neum. was most abundant and continue them...

Author(s)
Easton, E. R.; Tatchell, R. J.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 181-185
Abstract

The approach to the management of Boophilus microplus (Can.) adopted in Australia is outlined, and a comparison is made between past and recommended tick control strategies on cattle. The data requirements for an assessment of the applicability of a similar approach to African tick problems are...

Author(s)
Sutherst, R. W.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 79-85
Abstract

The development of amitraz for the control of single-host and multi-host ticks on cattle is reviewed. Recent work carried out in the Mediterranean area on ticks infesting sheep and goats is outlined. In such areas, there are often no facilities for annual treatment and agriculture would benefit...

Author(s)
Harrison, I. R.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 123-127
Abstract

The seasonal abundance of Boophilus decoloratus (Koch) was studied over a period of 4 years on cattle on a farm in the coastal region of Eastern Cape Province, South Africa. During this time, observations were also made on the duration of the non-parasitic stages of the tick maintained in Stevenson ...

Author(s)
Robertson, W. D.
Publisher
Tick Research Unit., Grahamstown, South Africa
Citation
Tick biology and control. Proceedings of an International Conference held from 27-29 January 1981, under the auspices of the Tick Research Unit, Rhodes University, Grahamstown, South Africa., 1981, pp 199-204
Abstract

The effects of larvae, nymphs and adults of R. appendiculatus on the growth of Bos indicus × B. taurus (Sanga) steers and on B. taurus (Friesian × Hereford) steers and heifers was measured by exposing groups, maintained in the same pastures in Zimbabwe, to different levels of tick challenge. Larvae ...

Author(s)
Norval, R. A. I.; Sutherst, R. W.; Kurki, J.; Gibson, J. D.; Kerr, J. D.
Citation
Veterinary Parasitology, 1988, 30, 2, pp 149-164

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