Land Plants - invasive

Tree of Heaven (Ailanthus altissima) on Jan 14, 2011

Submitter has sample
EDRR Status: No Response/Action Required

Description of specimen

There are 3 full grown trees in my backyard. They were there before we moved into our house. I just recently found out that they are an invasive species and am looking to have them removed from our property. Every year they spread like a disease and I have to pull hundreds of seedlings a year. Even the stumps continue to grow after the trunk has been cut.

Commentary

Is there perhaps a free invasive tree removal service available? I would ideally like to have them removed before spring when they spread their seeds.

Reporter
Jan. 14, 2011, 9:45 a.m.

Hi, Pamela. Thanks for your question. I'm sorry to say, no, I don't know of any free tree removal service. I would love it there were. Tree-of-heaven is definitely a problem species and I support (philosophically!) your removing them. That said, do so carefully and thoroughly. Tree-of-heaven is known for sprouting from its root tips, which may be part of the seedling crop you're seeing every year. I know that other pest species become extra-vigorous in this regard when you cut down the main stem, replacing 1 stem with many. It's ingenious, actually, and I expect the same from tree-of-heaven.

Feel free to contact me directly if you have other questions at mitch.bixby@portlandoregon.gov.

Have a good week!
-Mitch

Mitch Bixby
Jan. 24, 2011, 8:28 a.m.