@ARTICLE {BOCK:2000, title = {Control of sorghum downy mildew of maize and sorghum in Africa}, author = {Bock, C. and Jeger, M. J. and Cardwell, K. and Mughogho, L. and Sherington, J. }, journal = {Tropical Science}, year = {2000}, volume = {40}, pages = {47--57}, }