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.
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.
Insect & Disease Issues
Ganoderma Root Rot Treatment
May 20, 2021
“Ganoderma root rot” is a fungus that causes a wood-decaying infection that occurs through tree wounds, and attacks a variety of deciduous trees, such as maples, oaks, and honey locusts, as well as ashes, elms, and some conifers as well as palms. Here are symptoms and signs.
Tree Planting & Transplanting
Plants Under Trees: Protect the Root Flare
September 18, 2025
Plant under trees without smothering the trunk. Choose clumping, shallow‑rooted companions, keep the root flare visible, and build a breathable mulch ring.
Plant Health Care
Plant Health Care Program For Healthier Trees & Shrubs
August 22, 2024
A plant health care program is a comprehensive and proactive approach to maintaining the health and beauty of your landscape. By investing in regular monitoring and preventative care, you can enjoy immediate and long-term benefits, ensuring that your trees and shrubs thrive for years to come.
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.
Property Maintenance & Landscaping
Managing Deer Browsing on Your Property
January 19, 2021
The threat of deer feeding continues to increase for a variety of plant species, but there are a few techniques you can use to manage deer and reduce damage to your plants.
Tree Selection Guide
Brilliant Fall Foliage: Best Trees For Fall Color
October 21, 2021
As you plan your landscape, consider trees that provide seasonal beauty in your yard. Here’s a full list of top trees with the best foliage in fall.
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