Outputs from CPP cassava projects based in southern Tanzania (R6614, R7563) have been adopted by agricultural rehabilitation programmes in Mozambique that provide the poor with the means and skills to feed themselves. The rural population in Mozambique found their farmland destroyed after the civil war, and recent floods and drought have deepened their poverty. One of the world’s largest concentrations of cassava cultivation is to be found in northern Mozambique where it is a vital source of food security for many rural poor. NGOs including World Vision and Save the Children are helping at least 1.6 million farmers turn abandoned land into productive farms but the impact of their agricultural development programmes (ADPs) has been jeopardised by cassava virus diseases, including cassava brown streak disease (CBSD) and cassava mosaic disease (CMD).