Field surveys in many cassava growing areas of Africa have assessed the incidence and
severity of cassava mosaic disease (CMD), populations of the whitefly vector (Bemisia
tabaci), and the distribution of cassava mosaic begomoviruses (CMBs). The methods
employed differ greatly between countries and attempts at standardization were made in
recent CMD surveys in East and Central Africa, notably in the systemwide Whitefly IPM
Project, which provides a paradigm for future work on CMBs and whiteflies on cassava in …