• Publications
  • Influence
Cattle and Culicoides biting midges as possible overwintering hosts of bluetongue virus.
  • E. M. Nevill
  • Biology, Medicine
    The Onderstepoort journal of veterinary research
  • 1 June 1971
The results of these investigations support the theory that the biolog ical cycle of BTV can continue in Cu!icoides and /or cattle throughout the winter in the Onderstepoort area.
Review of tsetse flies and trypanosomosis in South Africa.
The history of tsetse flies and nagana (trypanosomosis) in South Africa, and especially in Zululand, is reviewed and ways and means of monitoring and controlling these species are conducted.
Evaluation of conventional odour attractants for Glossina brevipalpis and Glossina austeni (Diptera: Glossinidae) in South Africa.
The components of the synthetic ox-odour used in Zimbabwe against Glossina pallidipes and G. m. morsitans were evaluated for the attraction of G. brevipalpis and G. austeni in South Africa. The Zim
Review of blackfly (Diptera: Simuliidae) control in South Africa.
The latest research focuses on the factors that influence adult blackfly survival and annoyance, as well as the development of methods that can be used to protect sheep from blackfly attacks.
The use of a membrane feeding technique to determine the infection rate of Culicoides imicola (Diptera, Ceratopogonidae) for 2 bluetongue virus serotypes in South Africa.
The membrane feeding technique and handling procedures proved to be suitable for field studies and the infection rate of C. imicola for bluetongue virus serotypes 3 and 6 was established and no African horsesickness virus could be recovered.
Culicoides (Diptera:Ceratopogonidae) associated with livestock in the Onderstepoort area, Gauteng, South Africa as determined by light-trap collections.
This study confirms that C. imicola is widespread and abundant in the greater Onderstepoort area, but also that its numbers correlate positively with the historical prevalence of African horse sickness and bluetongue locally.
Comparative descriptions of the pupae of five species of the Culicoides imicola complex (Diptera, Ceratopogonidae) from South Africa.
The pupal exuviae of the five commonest sibling species of the genus Culicoides are described and illustrated in detail and it is shown that they can be differentiated clearly on a number of morphological characters and are separable into two distinct groups based on the shape of the respiratory organ.
Evaluation of a proposed odour-baited target to control the tsetse flies Glossina brevipalpis and Glossina austeni (Diptera: Glossinidae) in South Africa.
There was an indication that odour (olfaction) plays a far more important role in attracting G. brevipalpis than does colour (vision) and for G. austeni visual attraction appears to play the major role as the odours used were relatively unattractive to them.