Onchocerciasis and Simulium control in the Volta river basin Davies, J.B. /Le Berre, René Walsh, J.F. Cliff, B. ONCHOCERCOSE VECTEUR TRANSMISSION LUTTE CHIMIQUE INSECTICIDE CHIMIQUE EFFICACITE LARVE TEMEPHOS 1978 text https://www.documentation.ird.fr/hor/fdi:42585 fdi:42585 Davies J.B., Le Berre René, Walsh J.F., Cliff B.. Onchocerciasis and Simulium control in the Volta river basin. 1978, 38 (4), 466-472 EN BURKINA FASO