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Norval, R.A.I.Peter, T.F.Sonenshine, D.E.Burridge, M.J.[Responses of the ticks Amblyomma hebraeum and A. variegatum to known or potential components of the aggregation-attachment pheromome. III. Aggregation]Responses of the ticks Amblyomma hebraeum and A. variegatum to known or potential components of the aggregation-attachment pheromome. III. Aggregation

Adult Amblyomma hebraeum ticks, the principle vector of heartwater (cowdriosis) of domestic ruminants in southern Africa, were collected in pheromone traps placed in Kruger National Park, an exclusively wildlife sanctuary in South Africa. These ticks transmitted Cowdria ruminantium, the rickettsi...


Peter, T.F.Bryson, N.R.Perry, Brian D.O'Callaghan, C.J.Medley, G.F.Smith, G.E.Mlambo, G.Horak, I.G.Burridge, M.J.Mahan, S.M.[Cowdria ruminantium infection in ticks in the Kruger National Park]Cowdria ruminantium infection in ticks in the Kruger National Park

Analysis of the transmission dynamics of Cowdria ruminantium, the tick-borne rickettsial agent of heartwater in ruminants, requires accurate measures of infection in vector populations. To obtain these, Amblyomma hebraeum ticks were collected at two heartwater-endemic locations in the lowveld and...


Peter, T.F.Perry, Brian D.O'Callaghan, C.J.Medley, G.F.Mlambo, G.Barbet, A.F.Mahan, S.M.[Prevalence of Cowdria ruminantium infection in Amblyomma hebraeum ticks from heartwater-endemic areas of Zimbabwe]Prevalence of Cowdria ruminantium infection in Amblyomma hebraeum ticks from heartwater-endemic areas of Zimbabwe

The tick vectors of heartwater (Cowdria ruminantium infection) in Zimbabwe, Amblyomma hebraeum and Amblyomma variegatum, historically were believed to be confined to the low-lying regions of the south and north-west of the country. However, country-wide surveys performed in 1975-1980 and 1988-199...


Peter, T.F.Perry, Brian D.O'Callaghan, C.J.Medley, G.F.Shumba, W.Madzima, W.Burridge, M.J.Mahan, S.M.[Distributions of the vectors of heartwater, Amblyomma hebraeum and amblyomma variegatum (Acari: Ixodidae), in Zimbabwe]Distributions of the vectors of heartwater, Amblyomma hebraeum and amblyomma variegatum (Acari: Ixodidae), in Zimbabwe

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