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
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.
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.
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.
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.
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.
Plant Health Care
How April Weather Affects Tree Watering: Beyond ‘Dry vs. Wet’
April 3, 2026
April's changing weather means your tree watering schedule needs more than guesswork. Learn how soil, rain, and temps influence spring tree watering — plus tips by region.
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.
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.
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