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Pale green oak tree #879315
Asked July 29, 2024, 5:41 PM EDT
For the first time in its 15 year life, my oak tree has pale green leaves - not the deeper, richer green it normally has. Additionally, there are some browning leaves on internal branches, and every time the wind blows MANY small branches with several leaves fall to the ground. I have this tree professionally fertilized every Spring. Any advice you can offer would be greatly appreciated.
Thanks,
Jan
Douglas County Colorado
Expert Response
Hi Jan,
From what I can see in the photo, your tree looks like it does have symptoms of iron chlorosis. Do you have a record of what type of fertilizer was applied and by what method?
The twigs blowing out are a different situation; two common causes of this are scale insects and squirrels. Look for scale insects on the ends of the branches that have fallen; they are roundish bumps that superficially look like buds, but they are in the wrong places! Squirrel activity you will likely have noticed already, but keep an eye out especially in the early morning.
Cordially,
John
