This 356-page publication is the proceedings of a workshop held in Nelspruit, South Africa in November 1998. Twenty-one valuable communications are included, giving an up-to-date overview on research activities on weevils, nematodes, pathology and farming systems in sub-Saharan Africa. Nine country-case studies are also presented. Working groups' results and recommendations are included. This book will certainly be very useful for all those interested in IPM, especially in Africa.