Whitefly-transmitted diseases of crops such as cassava, sweet potato, beans, and vegetables are a serious problem in many countries of Africa and Latin America. In April last year the DFIDfunded project R8041 on sustainable management of whiteflies and whitefly transmitted geminiviruses in the tropics was initiated. This project aims to improve the livelihoods of resource-poor farmers by developing improved management strategies for controlling these diseases/whiteflies and the plant viruses they transmit and is led the Centro Internacional de Agricultura Tropical (CIAT). It forms part of the project on sustainable integrated management of whiteflies as pests and vectors of plant viruses in the tropics (SP-IPM Whitefly project) which received core funding from Danida with support from a consortium of donors