Land Plants - invasive

Knotweed (unknown species) (Fallopia sp.) on Sep 28, 2010

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

Description of specimen

Plants typical with bright green alternate leaves. In bloom.

Commentary

Thanks again for this report, Bruce. It looks like the infestation (well, one bush) you reported in 2009 is spreading. I'll share this again with ODOT and the City of Eugene and see whether they can suggest some options.

Thanks, Tania


Tania Siemens
Invasive Species Early Detection and Rapid Response Coordinator
The Nature Conservancy
WISE Program Coordinator (Watershed and Invasive Species Education)
Oregon Sea Grant Extension
tania.siemens@oregonstate.edu
541-914-0701

Tania Siemens
Oct. 6, 2010, 9:32 a.m.

Remedy

Oregon State University's Solve Pest Problems page has some great information about how to get rid of knotweeds Solve Pest Problems

This is a tricky weed to manage. Consider reaching out to your local Soil & Water Conservation District for technical advice.

Location

North side of Beltline on old right-of-way approximately 30-40 feet north of infestation in fence and shoulder of Beltline that was reported in 2009. This stand also includes part of a yard backing up to old right-of-way and is likely the original infestation. Obvious from west-bound lanes of Beltline.

Expert Reviewer

Tania Siemens
WISE Program Coordinator (Watershed and Invasive Species Education)
Oregon Sea Grant Extension
Oregon State University
tania.siemens@oregonstate.edu
541-914-0701

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