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
How to Maintain Tree Health During Dry Autumn Conditions
October 30, 2025
Fall droughts can quietly stress your tree. Learn the key signs and the best fall watering, mulching, and fertilization practices to keep them healthy through winter
Tree Selection Guide
The Best and Worst Trees to Plant Near a House (By Zone)
April 19, 2022
Learn about the worst trees to plant near your house and what trees to avoid such as the white ash and oak because of their widespread, invasive roots.
Property Maintenance & Landscaping
Clean Cuts
November 9, 2021
In terms of tree care and maintenance, late fall and even early winter are perfect times to clean pruning tools and yard supplies - when they're not in use.
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.
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