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This factsheet discusses the symptoms and control of bacterial spot of peppers and tomatoes.
This vegetable disease factsheet discusses collar rot and Alternaria stem canker of tomato, which are caused by different species of fungi belonging to the genus Alternaria. Both pathogens can cause large, irregularly shaped stem lesions with pronounced concentric rings. However, the concentric rings may not always be pronounced with collar rot.
This plant disease fact sheet discusses southern blight, a soil-borne fungus that attacks tomatoes and peppers, and several other economically important crops, including beans, cantaloupe, carrots, peppers, potatoes, sweet potato, and watermelon.
Identification and management of Phytophthora in annuals and herbaceous perennials in greenhouses and in the landscape is discussed in this disease fact sheet.
This vegetable disease fact sheet discusses three foliar fungal diseases (Botrytis gray mold, leaf mold, and powdery mildew) of high tunnel and greenhouse tomatoes.