The overall aim of this project was to develop improved methods for the control of virus diseases, in particular Cauliflower mosaic virus (CaMV) and Turnip mosaic virus (TuMV), in brassica crops in the PU vegetable systems being studied within the PU vegetable project cluster in Kenya. The project developed recommendations for improved control of virus diseases in several key areas: The use of existing brassica varieties to best effect by screening land races of cabbage and kale for virus resistance; The use of simple, low-input methods to control aphids (which are often unnoticed or not attributed as the causal organism of virus disease by farmers); and Development of an understanding of virus diseases and the control strategies available within the socio-economic context of peri-urban farming systems.