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.
Insect & Disease Issues
Emerald Ash Borer Facts: What Does the Emerald Ash Borer Eat?
February 13, 2020
Get the latest emerald ash borer (EAB) facts! What does emerald ash borer eat? Does emerald ash borer affect other trees? How to treat emerald ash borer? It’s important to know the ins and outs of this insect for proactive and preventative tree care.
Plant Health Care
Can You Stop A Fruit Tree From Leaking Sap (Cherry, Plum Or Peach)?
May 4, 2022
Colleen said, “I have a plum tree that's oozing sap, and many branches feel dead. Is this OK?” Stop the tree from leaking sap and see if plum tree sap is edible.
Property Maintenance & Landscaping
How Does Landscaping Affect Property Value And Curb Appeal?
September 23, 2021
Trees and plants don’t just provide beauty on your property; they deliver a substantial return on investment in exchange for relatively low-cost maintenance.
Tree Safety, Storm Prep & Recovery
Your Backyard Tree Checklist For The Winter Storm Season
December 13, 2021
Your local professionally trained arborists at The Davey Tree Expert Company share eight ways to identify potential tree damage before the storm season begins.
Davey Knowledge
Why Some Trees Recover After Drought and Others Don’t
July 24, 2026
Will your tree recover after drought? Learn why some trees rebound while others continue to decline, plus the signs of recovery and when to call a certified arborist.
Leaf & Needle Problems
Why Are There Brown Or Black Spots On My Maple Leaves?
August 22, 2022
Learn what is the treatment for black spots on maple tree leaves including maple leaf fungus and what maple tar spot is.
Property Maintenance & Landscaping
Landscaping in Rocky Soil
September 10, 2020
Planting in rocky soil is possible but takes a little extra prep work. Follow this step-by-step guide on how to prepare rocky soil for planting grass seed and trees.
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