Powdery Mildew – Trees & Shrubs

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.

Scales

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.

Spittlebugs

White blobs of bubbles on plants are created by the insects called spittlebugs, and their foam helps protect them. To find out more about these creatures, read this article…

Lawn Fertilization

A well-maintained lawn is an important asset for the homeowner, the community, and the environment, and fertilization is a vital element of a lawn management program. Learn more here.

Anthracnose

Anthracnose is the name of several common fungal diseases that affect the foliage of woody ornamentals in Wisconsin. This factsheet describes symptoms and management.

Edema

Edema is a physiological disorder that affects houseplants, greenhouse plants, and other plants sheltered under plastic. Learn about these fluid-filled “blisters” on leaves in this factsheet.

Black Knot, Apiosporina morbosa

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.

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