Rivers-Moore, Nick A, Bangay, Shaun D, Palmer, R W. Optimisation of Bacillus thuringiensis var. israelensis (Vectobac®) applications for the blackfly control programme on the Orange River, South Africa. 2008.
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Palmer, R W, de Moor, Ferdy C. Annotated records of blackfly (Diptera: Simuliidae) distribution in southern Africa. 1998.