Bombom, Alexander Relative frequencies and severity of Cercospora zeae-maydis haplotyp es and other gray leaf spot associated cercospora fungi on maize in Uga nda / Alexander Bombom. - 2007 - xi, 52 p. : ill., col., map ; 30 cm. Unpublished thesis ( M. Sc., Crop Sc.) - Makerere University, 2007 Includes bibliographical references (p.46-52) Subjects--Topical Terms: Cercospora-- Uganda.Leaves-- Diseases and pests-- Uganda.