Environmental Assessment of Larvicide Use

The objective of the Onchocerciasis Control Progininme (OCP) is to eliminate onchocerciasis as a disease of public îinportance and as an obstacle to socio-economic development. The OCP was initially based solely OIT the control of the blaclcfly vector, Simulium damnosum sensu lato, by insecticide spraying of the breeding sites on river systems, where larval stages develop. Results of monitoring the environmental effects and the process of risk assessment for nao insecticides are reviaued. The achieuetnents of this strategy are outlined here by Davide Calamari, Laurent Yameogo, Jean-Marc Hougard and Clzristian Leveque.