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
Protect Your Ash Trees: Spot the Early Signs of EAB
September 30, 2021
EAB can potentially wreak havoc on your ash tree, but spotting these four early warning signs could save the tree's life.

Plant Health Care
What's This Green Stuff Growing On Trees And Rocks?
May 7, 2020
Lichen does not pose a threat to your tree’s health. It is completely harmless so there’s no real need to get rid of it. But if the sight of it bothers you, follow the steps in this post to remove it. We highly recommend to not use a pressure washer to remove lichen.

Plant Health Care
What is the Definition of Plant Health Care?
June 3, 2021
The best way to keep trees healthy? Plant health care. Learn what plant health care is and how it benefits your trees.

Property Maintenance & Landscaping
Keep Established Trees Strong: How To Care for Mature Trees
October 20, 2022
Here's how to keep mature trees healthy with proper watering, pruning, fertilization, and regular monitoring and maintenance.

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.

Leaf & Needle Problems
What Can I do About Spots on Japanese Maple Leaves or Trunk?
July 12, 2022
Noticing spots, powder or a fungus on your Japanese maple leaves? Whether the spots are white or brown, it's typically not a serious issue. Still want your tree to look good? Get rid of those leaf problems with these easy steps. First...

Property Maintenance & Landscaping
How to Protect Trees from Winter Salt or Rock Salt Damage
February 18, 2021
Restoring tree health after spotting signs of rock salt damage requires management from both you and your local arborist.
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