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Elm trees (Ulmus spp.) are prized landscape and street trees valued for their canopy shape and adaptability to a variety of sites. However, they are vulnerable to several diseases that can affect their health, appearance, and longevity. This fact sheet provides a brief look at some diseases that affect elms, ranging from deadly threats like Dutch elm disease to more manageable issues like powdery mildew.
Elms (Ulmus spp.) are valued shade and street trees across North Carolina, but they are vulnerable to a range of insect pests. Some cause only minor, cosmetic damage, while others play a major role in spreading serious diseases such as Dutch elm disease. This factsheet highlights the most common insect pests of elm in North Carolina, their identification and biology, and management options to help homeowners, arborists, and land managers protect these important trees.
This fact sheet discusses the Ash Flower Gall Mite, a minor/aesthetic pest of ash trees.
