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.
Plant Health Care
Why Is My Tree Thinning Out in Summer? Understanding Mid-Season Canopy Loss
July 10, 2026
Noticing a thinner tree canopy this summer? Learn the difference between normal seasonal leaf loss and signs of stress, root problems, pests, or disease affecting tree health.
Insect & Disease Issues
Blue Spruce Tree Needles Turning Yellow, Brown, Then Dropping? Check For…
August 1, 2022
Yellow or brown needles falling off your spruce tree or Colorado blue spruce? Look for Rhizosphaera needle cast symptoms and manage this blue spruce needle cast.
Insect & Disease Issues
Verticillium Wilt Threatens Japanese Maples
November 9, 2023
Here are the first signs and symptoms of verticillium wilt on your Japanese maples and what you can do for treatment and stop it from spreading.
Davey Knowledge
Mistletoe in Trees
February 8, 2024
Mistletoe grows as a parasite on woody plants. Let’s dive deeper into what mistletoe looks like, where it grows, how mistletoe spreads, and tips for controlling mistletoe in trees.
Insect & Disease Issues
Identifying Common Spring and Summer Tree Insects (Pests)
June 2, 2021
Leaf curling or spots on new leaves? Learn what insect is damaging your tree - and how to stop it.
Davey Knowledge
Most Common Questions about Summer Tree Care
August 30, 2021
Wondering how to care for your trees in summer? Is it OK to plant trees in summer? Or, why does your tree have yellow leaves in August? Click to learn...
Plant Health Care
Essential Tree Care Tips for Colorado Landscapes
January 23, 2025
Learn more about Colorado’s unique climate conditions and how it impacts tree care for watering, fertilizing, and pruning.
Trimming & Pruning
What is Pruning? The Importance, Benefits and Methods of Pruning
September 13, 2022
Ever heard the term "pruning" and wondered what exactly that meant? It mostly means trimming your trees. Learn more about it, how it's done and how it helps trees.
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