Vegetable Diseases

Corn smut is a fungal disease that produces unusual fleshy, moldy growths on stems, leaves, tassels, and ears of corn.

Common scab is a bacterial disease that produces circular, corky, raised lesions or bumps on the tuber or root surface of potatoes.

Clubroot is a soil-borne fungal disease that causes the yellowing, stunting, and wilting of cruciferous plants, especially cabbage.

Rotting, mushy squash, pumpkins, eggplant, or chili peppers could have a common fungal disease called Choanephora rot.

Small tan to brown lesions surrounded by a reddish-purple border can be a symptom of Cercospora leaf spot on vegetable leaves.

Bacterial wilt can cause sudden wilting of cucumbers, melons, and summer squash.

Common Pepper Disease

In a home garden, leaf spots on tomato plants may be caused by Bacterial Spot or Bacterial Speck. Here we describe the two diseases and how to manage them.

Brown spotting of leaves on peas and beans can be caused by bacterial blights.

Sunken, irregular spots on vegetables is a symptom of a disease called Alternaria.