Whether you're picking out a tree for your landscape or making a list for this season's to-dos, we have your tree care questions answered.
Insect & Disease Issues
How to Get Rid of White Fuzzy Fungus on Plants (Powdery Mildew)
July 19, 2022
Notice fuzzy white stuff on your plants or plant stems? It's likely powdery mildew! It generally doesn't harm your tree, but it sure doesn't look good! Get rid of it by...
Davey Knowledge
Climate Change On Trees
June 16, 2022
How are forests affected by climate change? Learn more about the effects of climate change on tree species so you can better care for your trees.
Insect & Disease Issues
How to Stop Pine Beetle Infestation
May 3, 2021
Love your pine? Protect it. Learn the common signs of pine beetles, how to prevent them from hurting your trees and how to control them if they’re already there.
Tree Selection Guide
Fireproof Landscapes With Fire Resistant Plants, Trees & Shrubs
August 8, 2022
Learn what trees and shrubs are fire resistant in California including a fire resistant plant list and trees that can survive forest fires.
Soil Care & Mulching
How to Tell if Soil is Compacted Around Trees and What to Do
October 13, 2021
Is your tree slow growing? You may have compacted soil. Test to confirm, then discover soil compaction remedies. Also see if you can plant trees in compacted soil.
Plant Health Care
What Time of Year Do Pine Trees Drip Sap (and Can I Stop It?)
February 21, 2022
What time of year do pine trees drip sap, and how much pine sap is excessive? If it's golden brown, no need to stop tree sap from running or sapping. That's normal in spring. But if you see your pine tree oozing white sap (or a white substance on pine trees), there's a problem. Click here for more.
Tree Selection Guide
Salt Tolerant Evergreen Trees (By Zone)
February 14, 2022
Winter salt can dry out evergreens, making their needles brown or yellow. Instead, select salt tolerant evergreens trees for the northeast region and each zone.
Tree Selection Guide
Best Low Pollen Trees
March 11, 2021
There are common plants and trees that trigger allergies. Here’s a list of the best and worst trees for allergies.
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