Land Plants - invasive

Tree of Heaven (Ailanthus altissima) on Sep 26, 2024

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

Description of specimen

Full tree and smaller trees growing

Commentary

Thank you for reporting! That is indeed Tree of heaven. If that is on your property you can learn more about best management practices on how you can control it on our Weed and Pest Directory here:

Profile: https://tualatinswcd.org/species/tree-of-heaven/
BMP: https://tualatinswcd.org/wp-content/uploads/2022/11/2022_Tree-of-Heaven_BMP.pdf
Herbicide recommendations (Penn State Extension): https://extension.psu.edu/tree-of-heaven & Oregon State University Solve Pest Problems: https://solvepestproblems.oregonstate.edu/weeds/tree-of-heaven

Keith Nasman
Oct. 3, 2024, 6:19 a.m.

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

Port of Portland wetland mitigation site and along NW 334th Ave

Expert Reviewer

Keith Nasman
Tualatin SWCD

© 2024 Portland State University | Contact us for questions regarding site content