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.
Invasive Pest Alert for Illinois: Elm Zigzag Sawfly
May 1, 2025
The elm zigzag sawfly, an invasive species, is targeting elm trees in the Chicago region. Most trees recover from this pest, but weakened and stressed trees are at risk.
What You Need to Know about Watering Trees in Winter (Even in Colorado!)
January 16, 2018
Learn about if watering newly planted trees in the winter is needed, including if you should water trees in winter in Colorado.
Leaf & Needle Problems
What "Pine" Trees Lose Their Needles in Winter?
January 30, 2018
What pine trees lose their needles in winter, and when do pine needles stop falling? Over your pine shedding needles? Pick pine/evergreen trees that don't drop needles!
Insect & Disease Issues
Red Turpentine Beetle: Identification, Damage & Management
January 5, 2023
You’ll see the most activity and red turpentine beetle damage in spring and early summer with these pests. Red turpentine beetle attacks usually start near the ground level of your trees.
Tree Planting & Transplanting
What To Do With Christmas Trees After The Holidays
January 4, 2022
What To Do With Christmas Trees after the Holidays
Property Maintenance & Landscaping
How Long Do White Fluffy Seeds Last on Cottonwood Trees?
May 9, 2022
Those white fluffy seeds in the air in spring are cottonwood seeds! But how long does cottonwood season last? Cottonwood trees shed cotton for several weeks from late spring to early summer. But can you stop them from producing cotton? Here's how to reduce or stop it entirely.
How to Reduce Wind and Storm Damage on Trees
June 28, 2021
Protect your trees from high winds and stressful weather with these storm prep practices.
Trimming & Pruning
Can I Use a Hedge Trimmer or Pole Saw to Trim My Trees?
May 28, 2019
Learn about the trimming tools that work best on trees and the ones that don’t.
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