Browsing South African National Veterinary Repository by Author "Langley, P.A."

Browsing South African National Veterinary Repository by Author "Langley, P.A."

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  • Understanding tsetse flies 
    Langley, P.A.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1994)
    The discovery that tsetse flies are the vectors of African trypanosomosis, causing sleeping sickness in man and nagana in cattle, occurred at the start of a rapidly expanding colonialism in sub-Saharan Africa. Hence, the ...