Yam productivity in the main yam-growing belt of West Africa is reduced by losses in the growing crop, and in subsequent storage, due to diseases and pests. Many of these are either spread in, or exacerbated by, poor quality planting materials. A package of crop protection technologies was developed (based on current practices, indigenous technical knowledge and the outputs from previous projects) for producing good quality seed yams and promoting their supply and availability. The package was validated for applicability and economic efficacy by growers in Kogi and Ekiti states of Nigeria and was shown to be suitable for wider adoption in West Africa.