The most common diseases of field corn in New York include: 
- Anthracnose Leaf Blight
- Anthracnose Stalk Rot
- Common Rust
- Common Smut
- Eyespot
- Gray Leaf Spot
- Northern Corn Leaf Blight
- Northern Corn Leaf Spot
- Stewart's Bacterial Leaf Blight
Recommendations for management of these diseases in New York through foliar fungicides is available.
Recommended Resources
- Fungicide Classification Chart - from Take Action a table to aid in the selection of appropriate fungicides to use to help prevent fungicide-resistance
- Detecting and managing new foliar corn diseases in the U.S. - American Society of Agronomy - IPM Institute of North America (PDF)