Data are presented on the incidence and severity of (black and yellow) sigatoka leaf spots and Cladosporium freckle
in different ecological zones of Uganda. Black sigatoka has become widespread since its arrival in Uganda in 1988. Sigatoka leaf spots were most severe in mid-elevation zones of central Uganda. The disease was absent at altitudes above 1500m and in drier zones (3-5 wet months per year). Cladosporium freckle
was present at all survey sites and also most severe in central Uganda.