Land Plants - invasive

Tree of Heaven (Ailanthus altissima) on Aug 21, 2024

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

Description of specimen

Mostly single specimens, but a few places more dense groupings. Young trees mostly.

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

miles of tree of heaven on the Canby Marquam Highway, both sides of the road in isolated new growth. Growing into a house in Yoder, and a dense stand of it on both sides of the road closer to Lone Elder. Pin is just a guess -- there's a lot of it. It ends before Marquam.

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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