Your San Francisco, California Davey Tree Office

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

Our team regularly works in Belmont, Brisbane, Burlingame, Daly City, Pacifica, San Bruno, San Carlos, San Mateo, South San Francisco, 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 San Francisco, some of the most common tree pests and diseases include Sudden Oak Death, Anthracnose, and Root Rot. Here are signs and symptoms of how these pests and diseases can affect your trees. 

• Sudden Oak Death: Early signs include cankers, leaf spots, sap seeping from the trunk and foliage loss. The disease leads to dieback and tree loss.
• Anthracnose: Ash symptoms include brown patches along veins on new leaves. Maple, Oak, and Sycamore symptoms feature brown lesions or dead areas along leaf veins. 
• Root Rot: Stunted growth, small foliage, early needle or leaf drop, branch dieback (especially in the upper crown), and sometimes heavy resin flow saturating in the bark.

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. 

Some tree species, like birch, sycamore, silver maple, and redbud trees, naturally shed bark as they grow, while other species shed bark as a sign of disease, pests, or extreme temperature damage. If your tree has healthy-looking bark under the shed, then it’s usually safe. Read our blog to learn more about bark shedding.

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.