Sorghum Diseases in India

Figure 1. Agroecological sorghum-growing zones in USA. Production (million t) in 1985, by
region was: GP (Great Plains) 17.5; C (Central) 6.4; GC (Gulf Coast) 5.1; W (Western) 1.9; and E
(Eastern) 0.3.
Table 1. The relative prevalence and importance of sorghum diseases in the United States of
America.
Region 1
Disease Great plains Coastal plains Central East West
Anthracnose - 2 0 3
+++3 ++2 +++3 -0
Charcoal rot/
Fusarium stalk rot ++3 ++2 + 2 + 2 + 1
Downy mildew + 2 ++3 + 1 + 1 -0
Foliar diseases + 1 +++3 + 1 +++2 + 0
Grain mold/
Fusarium head blight + 2 ++3 ++3 ++3 + 0
Head smut ++2 ++3 + 0 + 0 + 0
Maize dwarf mosaic +++1 +++1 ++1 ++1 +1
1. Sorghum-growing regions include: Great Plains, parts of Texas, Nebraska, Kansas, New Mexico, Colorado, and
South Dakota. Coastal Plains: Texas, Mississippi, and Louisiana. Central: Illinois, Kentucky, Missouri, and
Tennessee. East: Alabama, Georgia, North Carolina, and South Carolina. West: California and Arizona.
2. - Not reported at present, + Occasionally, ++ Commonly, +++ Generally found on most plants.
3. 0 = No loss, 1 = Probably not economically important, 2 - Occasionally important 3 = A major production
constraint.
86
E