Corn
Diseases in Ohio
Common
Rust
- Symptoms
- reddish-brown, oblong
pustules on leaves, rust colored spores rub off on fingers
- Environment
- cool temperatures
(60 to 70°F) and high humidity
- Transmission
- spores are wind
blown into the area
- new infections causing
spread within field occurs every 7 to 14 days
- Management
- Scouting
