
Wheat
Diseases in Ohio
Black
Chaff
- Symptoms
- brown-black streaks
or blotches on upper half of glumes
- dark brown streaks
on leaves
- Environment
- moist, mild weather
during flag leaf emergence through grain fill
- Survival
- bacterium survives
on residues, in soil and on seed
- spread by splashing
rain, wind and plant-to-plant contact
- Management

