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Maple leaves falling in June. #874187

Asked June 22, 2024, 1:46 PM EDT

I have a mature Maple tree which this year dropped a significant amount of green leaves this year in June. I have observed some small green insects on the fallen leaves. The canopy is thinner than previous years with an increase in dead branches. What can be done to save this tree ? Thank you

Deschutes County Oregon

Expert Response

Hi Philip,
Thank you for your question about your maple tree. I cannot definitively determine what is happening with your tree without photos. From your description, your tree may have aphids. You can review the following publication for a description of this insect and damage. Maple: Aphids | Hortsense | Washington State University (wsu.edu)

For a more thorough review of the problem with your tree, I recommend you contact the Plant Clinic at the OSU Deschutes County Extension in Redmond. You can call the phone number listed below or send your question and photos of your tree to <personal data hidden>

The person on duty will review your information, conduct necessary research, and contact you with findings or management options.

Summer Hours: Monday through Thursday, 9:00 to 5:00 pm, Friday 9:00 am to 1:00 pm.

Phone:<personal data hidden> x79630

We always welcome your home garden questions at the OSU Plant Clinic.


Susan P., OSU Master Gardener Volunteer Replied June 26, 2024, 11:39 AM EDT

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