Powdery mildew occurs on the above-ground parts, especially leaves, of many agricultural crops (including vegetables) as well as many ornamental plants, trees and shrubs. Learn how to manage this disease here.
This factsheet covers potato scab, a common disease of potato tubers, and can also affect other root vegetables. Learn how to identify and manage this disease in your garden.
Southern blight is a lethal fungal disease that is most common in the tropics and subtropics, but can cause problems in temperate locations like Wisconsin during periods of warm, moist weather. Learn more here.
Septoria leaf spot is a common fungal disease that can devastate tomatoes. Learn how to identify and manage this disease in your garden in this helpful factsheet.
White mold is a serious and often lethal fungal disease that affects a wide variety of plants. Learn about symptoms and management in this factsheet.
Early blight is a common fungal disease that can devastate tomatoes in commercial and home gardens. Learn about symptoms and management in this factsheet.
Dodders are parasitic plants that can affect a variety of plants, including vegetables, herbaceous and woody plants, and even weeds. Learn what dodders look like and what to do if you find them in this factsheet.
Striped and spotted cucumber beetles are common pests of vine crops that can cause damage to roots, leaves, flowers and fruits, leading to reduced yield. Learn more in this factsheet.
Tobacco rattle is a common and potentially serious viral disease that affects a variety of herbaceous ornamentals as well as vegetables. Learn about symptoms and management in this factsheet.
Corky ringspot (aka spraing) is a viral disease of potato that can cause severe loss due to a reduction in tuber quality. It can also affect other vegetables, herbaceous ornamentals, and weeds. Learn more in this factsheet.
Blossom end rot is a physiological disorder of tomato where the blossom end of the fruit breaks down and rots. It can also affect peppers, eggplants and squash. Learn about control in this factsheet.
The downy mildews are a group of fungal diseases that cause destruction of the leaves, stems, flowers and fruits of many plants, including grapes, cucumbers and roses. Learn symptoms and controls in this factsheet.