Land Plants - invasive

Tree of Heaven (Ailanthus altissima) on Aug 25, 2025

Submitter does not have a specimen
EDRR Status: Local expert notified

Description of specimen

Multiple trees all along the roads behind Crosspoint Dealer Auction on SE Bell and SE Alberta

Commentary

None

Remedy

Check out a really thorough guide regarding tree of heaven identification and control OSU’s Solve Pest Problems: https://solvepestproblems.oregonstate.edu/weeds/tree-of-heaven

The Portland metro-area Cooperative Weed Management Area also has some great best management practices for handling this weed The 4 County CWMA: https://4countycwma.org/assets/best-mgmt-practices/tree-of-heaven-bmp_final.pdf

Resources

https://solvepestproblems.oregonstate.edu/weeds/tree-of-heaven

https://4countycwma.org/assets/best-mgmt-practices/tree-of-heaven-bmp_final.pdf

Location

These trees have spread all over the hill on Bell and Alberta north of Johnson Creek
There are several very mature trees as well as younger ones

Expert Reviewer

Samuel Leininger
Clackamas Soil and Water Conservation District
4-County Cooperative Weed Management Area
Columbia Gorge Cooperative Weed Management Area

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