Land Plants - invasive

Tree of Heaven (Ailanthus altissima) on Aug 30, 2024

Submitter has sample

Description of specimen

The largest Tree of Heaven I have ever seen. It's like 3 trees in one. There are smaller trees all over the corner we live at. Also saplings across the street.

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

I am a renter, and this property has the largest Tree of Heaven I have ever seen. The entire corner is covered in saplings. It seems to drop hundreds of thousands of seeds each year. The main tree is right next to the house and driveway.

Expert Reviewer

Whitney Bailey
EMSWCD

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