Knowledgebase

Tree aphids #946927

Asked October 12, 2026, 10:13 AM EDT

I have a very large maple tree and for the first it has aphids and was told need a licensed arborist to take care of my problem So if this is right can you recommend an arborist in the Gresham/ Portland area Chuck

Multnomah County Oregon

Expert Response

Hello Chuck, 

Thank you for reaching out to Ask Extension! While we can't provide a specific company recommendation, the PNW-ISA maintains a For Hire ISA Certified Arborist Directory of ISA Certified Arborists. The searchable database allows you to locate commercial tree care companies and consulting arborists who can help provide the best possible care for your trees.

This helpful page offers advice on working with a certified arborist:
https://pnwisa.org/page/choosing-a-qualified-arborist. The page includes a link to the arborist directory under the "working with a certified arborist" section. I hope this helps!


Best,  Replied October 12, 2026, 12:32 PM EDT

Loading ...