Oak wilt can be lethal, especially to oaks in red oak group. Learn about this disease of oaks, the life cycle and management options.
Phenology is a branch of science that studies the life cycles of plants and animals with seasonal changes and weather. Learn more in this factsheet.
Powdery mildew is a disease that occurs on the above-ground parts of many deciduous trees and shrubs, as well as herbaceous ornamental plants, indoor houseplants, and many agricultural crops. Learn more in this factsheet.
There are many species of scales and they are difficult to control because of their protective covering. Learn to identify and manage scales in this factsheet.
Springtime weather injury can cause misleading symptoms on foliage. This fact sheet describes symptoms and steps to minimize the likelihood of injury.
This factsheet provides information on some of the most ornamental, disease resistant crabapples available for landscaping in Wisconsin.
Anthracnose is the name of several common fungal diseases that affect the foliage of woody ornamentals in Wisconsin. This factsheet describes symptoms and management.
Learn to recognize and prevent plant damage caused by deicing salts. Learn about alternatives to rock salt and which plants are salt-tolerant.
Large swollen dark-colored growths on plum and cherry trees are caused by a fungal pathogen that causes the disease known as black knot. To learn more about this disease and how to manage it, read this article.
Lichens are organisms that arise from mutually beneficial interactions between certain fungi and algae. Learn about these harmless, and very common organisms in this factsheet.
Powdery Mildew is a disease that affects a lot of different plants. On most plants, it’s harmless. Find out if various home remedies you’ve heard about are effective in this video!
The most common spider mite, the twospotted spider mite, is a general feeder that attacks a wide variety of plants. Learn about its biology and management in this article…