All too often, images of drought and hunger stalk the continent. Despite the fact that agriculture accounts for 65% of full-time employment in Africa and provides a livelihood for two-thirds of the continent’s poor, hunger and poverty are widespread (Pretty et al. 2011a). At the root of a deepening ‘polycrisis’ of poverty, hunger and environmental degradation is presumed to be a ‘backward’ agricultural sector which has lagged behind the progress made by Asia and Latin America. In response, many are now advocating an ‘African Green Revolution’.