Public Works and Environmental Services Alert:
Stay away and never attempt to approach or touch trees or limbs that contact power lines, as they are considered extremely dangerous.
If there is a tree fallen across utility lines, please call the appropriate electrical company, such as Dominion Power, 1-888-667-3000, TTY 1-800-522-4015, or NOVEC, 703-335-0500 or 1-888-335-0500, TTY 711.
Visit Tree Resources - Who To Call for information on what to do and who to call about hazardous Trees.
A hazardous tree is a tree, or a portion of a tree, that is in danger of falling and presents a threat to life or property. Find out more about the signs of a hazardous tree and information about pruning and removal at Tree Removal.
Using proper pruning techniques is extremely important to the long-term health and viability of trees. Find tips and best practices for pruning and what makes tree topping so harmful at Tree Planting and Care
Trees and grass are healthier when they are not forced to compete with each other. The best approach is generally to allow a mulched area around the perimeter of the drip line of the tree. Learn more at Tree Planting and Care
A healthy tree has many built-in methods of resisting normal insect and disease invasions.Identifying causes of tree stress and mitigating them early can help a tree to resist or fight harmful agents. Learn more at Tree Planting and Care
In general, there are no laws or regulations in Virginia that prohibit you from removing individual trees on your own property. Some specific regulations, however, might impact your property. Visit Tree Removal for more information.
The condition of your trees can have a significant affect on the value and safety of your property. Therefore, it is in your best interest to be an informed consumer when seeking the services of an arborist. Find out how to hire an arborist.
Emerald ash borer is a beetle that was accidentally introduced into North America from Asia. It does not generally spread great distances on its own but is typically spread as various ash materials (firewood, wood chips, nursery stock, etc.) are transported from infested to noninfested areas. EAB infests all species of ash and is almost always fatal without treatment. Learn more at Emerald Ash Borer
Severe infestations of cankerworms can cause widespread defoliation, tree stress and possible tree death. Major infestations and defoliation have occurred in Fairfax County. Learn more at Fall Cankerworms.
In 1869, the spongy moth*, Lymantria dispar, escaped from a Massachusetts lab and became established in North America. It continues to be a serious insect threat to trees and shrubs in the United States. Learn More at Spongy Moth.
The spotted lanternfly is an invasive insect that is native to East Asia. Like many exotic insects, it has no known natural enemies in the United States. Spotted lanternfly was first detected in Fairfax County in 2022.
Help prevent the spotted lanternfly from spreading. Learn more at Spotted Lanternfly
Large webby tents in tree branches are caused by fall webworm. This is a native caterpillar that spins webs over leaves of deciduous trees. This insect does not pose a serious risk to trees and native trees are well adapted to this pest.
Public Works strives to protect and enhance the natural environment, but we can’t do it alone. There are numerous opportunities for volunteers who want to help keep their streets and streams clean and their natural areas green. Learn more at Volunteering