Your Dulles, Virginia Davey Tree Office

We proudly provide professional tree care services throughout Dulles and the surrounding communities.  

Our team regularly works in Arlington, Ashburn, Dulles, Great Falls, Herndon, McLean, Reston, Sterling and Winchester, offering expert tree trimming and pruning, shrub care, tree removal and planting, tree inspections, and plant health care. If you’re not sure whether we service your area, just give us a call — we’re happy to help. 

In Dulles, the best time to prune most trees is during late winter to early spring, before new growth begins. Pruning during this dormant season helps trees heal quickly, reduces stress, and lowers the risk of disease or pest infestation. 

In Dulles, some of the most common tree pests and diseases include Spotted Lantern Fly, Mites, and Lace Bugs. Here are signs and symptoms of how these pests and diseases can affect your trees. 

• Spotted Lantern Fly: The most noticeable symptom is wilted foliage, which can affect the entire tree in severe cases. The trunk may develop open, oozing wounds that secrete a sticky, sugary substance.
• Mites: Mites, though nearly invisible, cause noticeable damage to trees, shrubs, and plants. Signs include leaf spotting, bronzing, yellowing, and small webs between twigs.
• Lace Bugs: Infestation signs include bleached leaves, premature leaf drop, and shiny black excrement on leaf undersides. Unlike spider mites, lace bugs do not produce webbing.

A Plant Health Care (PHC) Program is a proactive, year-round plan to keep your trees and shrubs healthy and pest-free. Our certified arborists focus on prevention and early detection by monitoring soil health, nutrients, insects, and disease. Based on your property’s needs, we create a customized care plan that may include fertilization, pest management, pruning, and soil improvement. 

If you suspect your tree is infested with a pest, contact your local Davey office. Our arborists are equipped with the knowledge and tools needed to identify and treat pests, and to implement preventative measures to avoid future infestations.

Once heavy rainfall passes, perform a soil test to check the soil’s moisture levels. If it’s still soaked, avoid watering your tree until it needs hydration. Hold off on fertilizer until the soil drains and keep an eye out for signs of damage the next growing season. Read our blog to learn more about oversaturated soils. 

When conducting a visual inspection of your tree, start from the ground up. Look for heaving or severed roots, peeling bark, and decaying wood, and dead or dying branches and leaf deformities. Read our blog to learn how to tell if your tree is dying or dead.

Yes! Mulching around trees helps retain soil moisture, reduce weeds, improve soil nutrients, and regulate root temperature. Without mulch, tree roots must compete with grass for water and nutrients, which can slow growth and weaken the tree. Learn more about the benefits of mulching in our blog.

For best results, apply 2–3 inches of organic mulch around the tree, keeping it a few inches away from the trunk. Proper mulch installation is essential for the long-term health of your trees and plants.