Diseases

Vegetable Diseases of Ohio


Anthracnose Early blight of potato and tomato Phytophthora 
Bacterial ring rot of potato Fusarium Powdery mildew
Clubroot of crucifers Gummy stem blight Rhizoctonia
Damping Off Late Blight Stewart's Wilt
Downy mildew  Mosaic viruses of vine crops Xanthomonas

For vegetable disease diagnostic services click here.

Visit the OSU Vegetable Pathology Lab's website to get vegetable disease updates, disease factsheets, Extension presentations,  diagnostic posters, and disease management reports.

For information on general disease diagnosis and control, please see General Disease Management.


Anthracnose

Vegetable host range:  Peppers, tomatoes, other crops

Fact sheets:

Management:


Bacterial ring rot of potato

Vegetable host crop range: Potato

Fact Sheets: 


Clubroot of crucifers

Vegetable host crop range: cabbage, broccoli, cauliflower, radishes, & turnips

Fact Sheets:

Management:


Damping Off

Vegetable host crop range: Green, snap, lima, and dry beans

Fact Sheets:


Downy mildew

Vegetable host crop range: Cucurbits and Cruciferous plants

Fact Sheets:

Management:


Early blight of potato and tomato

Vegetable host crop range: Potato & tomato

Fact Sheets:


Fusarium

Vegetable host crop range: Potato, Pumpkin

Fact Sheets:


Gummy stem blight

Vegetable host crop range: Pumpkins, Squash

Fact Sheets:


Late blight

Vegetable host crop range: Potato, tomato

Fact Sheets:


Mosaic viruses

Vegetable host crop range: Pumpkin, squash, zucchini, melon

Fact Sheets:


Phytophthora 

Vegetable host crop range: Peppers, pumpkin, squash, melon

Fact Sheets:

Management:


Powdery Mildew

Vegetable host crop range: Pumpkin, squash, melons

Fact Sheets:

Management:


Rhizoctonia

Fact Sheets:

Management:


Stewart's Wilt

Vegetable host crop range: Sweet corn

Management:


Xanthomonas

Vegetable host crop range: Pepper, tomato, pumpkin, squash

Fact sheets:

Management:


General Disease Management

Fact Sheets: