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.
Leaf & Needle Problems
Why ‘Bradford’ Callery Pear Tree Leaves Are Brown, Black or Falling Off
June 14, 2022
Are your Bradford or ornamental pear tree leaves turning black, brown, dying or falling off? Your Bradford pear is likely dealing with a common springtime fruit tree infection: fire blight. Learn more about fire blight and how you can help your tree.
Plant Health Care
Signs Of Overwatered Hydrangeas & How To Fix Them
September 21, 2023
Here are common signs of an overwatered hydrangea and how to save overwatered hydrangeas.
Tree Safety, Storm Prep & Recovery
Does Cabling a Tree Really Work?
November 10, 2022
Tree cabling and bracing is a proactive and preventative technique to support a tree with a poor or weak structure. Protecting your tree and giving it some support where necessary can help it withstand harsh storms.
Tree Identification
Do I Have a Pin Oak?
April 29, 2021
Pin oak trees are one of the fastest-growing shade trees. Here are some characteristics to help identify if you have a pin oak. Hint, the pin oak tree leaves stand out among other oaks.
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.
Davey Knowledge
How Altitude Affects Tree Growth in Denver: What Homeowners Should Know
January 9, 2026
High elevation, dry soil, and UV exposure all impact tree growth in Denver. Learn how altitude affects tree health and which trees thrive at 5,000+ feet.
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...
Lawn Care & Maintenance
Best Time To Overseed Lawn (Midwest, Northeast, South, West)
August 31, 2022
Here's the best time to overseed the lawn in the Midwest, Northeast, South and West. Reseeding lawns covers bare spots, and overseeding lawns helps with weeds.
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