Forest Insect Pests
Many forest insect pests in our region are native to other parts of the world, and have no natural enemies. They feed aggressively on native forests and landscape trees and cause widespread defoliation and weak forest ecosystems. For more information, see below or contact the Forest Pest Branch at 703-324-5304, TTY 711, or via e-mail.
Emerald Ash Borer
- Emerald Ash Borer in Fairfax County
- Virgina Department of Forestry Emerald Ash Borer Presentation
- Protecting Your Trees from the Emerald Ash Borer
- Hiring an Arborist
- Emerald Ash Borer - Signs and Symptoms
- Identifying Ash Trees
- Don't Move Firewood!
Gypsy Moth
- Gypsy Moth in Fairfax County
- Caterpillar Look-alikes
- Burlap Banding for Gypsy Moths
- 2009 Gypsy Moth Spray Program


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