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Vegetable Diseases
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Updated: March 13, 2023
Key to Common Problems of Tomatoes
What's wrong with my tomato plant, you ask? Look at photos of common tomato problems and learn how to manage common tomato diseases and pests in a home garden.
Updated: February 24, 2023
IPM - Prevent, Identify, and Manage Plant Problems
How to ID, prevent, and manage plant problems in Maryland using IPM
Updated: February 20, 2023
Leaf Curling on Vegetables
Reasons why the leaves of vegetable seedlings curl
Updated: February 20, 2023
White Rot of Alliums in the Home Garden
White rot is a destructive disease of onions and garlic.
Updated: February 20, 2023
Viruses of Vegetables
Specific virus diseases are difficult to distinguish and produce a wide range of symptoms including stunted, slow-growing plants, twisted, crinkled, cupped, or deformed leaves, and leaf discoloration (yellow mottling and mosaic patterns, ringspots, and dark-green banding).
Updated: February 20, 2023
Verticillium Wilt of Vegetables
Symptoms of verticillium include older leaves turning yellow, dying, and dropping off infected plants.
Updated: February 20, 2023
Southern Blight of Vegetables
Many bacteria, fungi, and viruses can cause blights. Southern blight is caused by the fungus Sclerotium rolfsii. Most blights are favored by certain weather conditions, such as hot and humid or cool and moist.
Updated: February 20, 2023
Septoria Leaf Spot of Tomatoes
Septoria leaf spot starts on lower leaves of tomatoes as small, circular gray lesions (spots) with dark borders.
Updated: February 20, 2023
Powdery Mildew on Vegetables
Powdery mildew is a common fungal disease that grows as a white powdery coating over the surfaces of leaves. It has a wide host range.
Updated: February 20, 2023
Scurf on Sweet Potatoes
Sweet potatoes that develop dark spots on their skin surface may be infected with a fungal disease called scurf.
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