Proceedings of the final research co-ordination meeting organized by the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vom, Plateau State, Nigeria, 6–10 June 1988. The proceedings contain the final reports (15) of scientists co-operating in a five year co-ordinated research programme. Its main objectives were: (1) to provide a research base and support for ongoing and future tsetse control/eradication programmes involving the application of SIT; (2) to develop methods for evaluating and monitoring tsetse SIT campaigns; and (3) to develop strategies for incorporating SIT into national and regional (area-wide) tsetse and trypanosomiasis control programmes. Included in this volume are reports of two successful SIT programmes, one in Burkina Faso covering 3000 km2 and another in Nigeria covering 1500 km2.