Crop diseases
Corn Diseases
Disease names frequently listed for Corn varieties. Prefer resistant cultivars and cultural prevention where possible.
Diseases mentioned for this crop
- Gray Leaf Spot 16 mentions
- Northern Corn Leaf Blight 13 mentions
- Common Smut 12 mentions
- Stewart's Wilt 10 mentions
- Common Rust 9 mentions
- Southern Corn Leaf Blight 5 mentions
- Smut 4 mentions
- Bacterial Wilt 4 mentions
- Southern Corn Rust 4 mentions
- Rust 3 mentions
- Crazy Top 3 mentions
- Stewart's Bacterial Wilt 2 mentions
- Bacterial Leaf Streak 2 mentions
- Occasionally Affected By Smut 1 mentions
- Resistant To Most Major Corn Diseases 1 mentions
- Northern Corn Leaf Blight (Generally More Resistant Than Sweet Corn 1 mentions
- Southern Rust 1 mentions
- Corn Rust 1 mentions
- Generally Disease Resistant 1 mentions
- Occasional Rust In Humid Conditions 1 mentions
- Anthracnose 1 mentions
- Bacterial Stalk Rot 1 mentions
- Diplodia Ear Rot 1 mentions
- Seedling Blights 1 mentions
Resistance notes from varieties
- Good resistance to Stewart's wilt. Moderate resistance to common rust.
- Excellent resistance to Stewart's wilt and common rust. Good tolerance to northern corn leaf blight.
- Limited disease resistance typical of heirlooms. Susceptible to most common corn diseases.
- Excellent resistance to Stewart's wilt and common rust. Good resistance to northern corn leaf blight and gray leaf spot.
- Good natural resistance typical of flint corns. More resistant than sweet corn varieties.
- Limited disease resistance, susceptible to common corn smut and bacterial wilt
- Good resistance to northern corn leaf blight and rust
- Moderate resistance to common smut, susceptible to bacterial diseases
FAQ: diseases of Corn
What diseases affect Corn?
Cultivar notes commonly mention Gray Leaf Spot, Northern Corn Leaf Blight, Common Smut, Stewart's Wilt, Common Rust, Southern Corn Leaf Blight, Smut, Bacterial Wilt, Southern Corn Rust, Rust, Crazy Top, Stewart's Bacterial Wilt. Choose resistant varieties where available and improve airflow / drainage to reduce risk.
Lists are aggregated from cultivar notes, not a lab diagnosis. Confirm with local extension before treating.