Japanese Knotweed (Fallopia japonica) on Jul 21, 2012
Submitter does not have a specimen EDRR Status: Local expert notified
Description of specimen
Several patched near tributary to Arnold Creek
Commentary
Hey, Corrina. We should try to compare notes in the next few weeks and see who can take which sites. Talk to you later!
-Mitch
Mitch Bixby
July 23, 2012, 1:27 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
Japanese knotweed (and clematis, blackberry, ivy, holly, English hawthorne) found at a Tryon Creek Watershed Council site visit at 3222 SW Dickensen Rd Portland. Landowner has been referred to resources.
Expert Reviewer
Mr. Mitch Bixby City of Portland - Bureau of Environmental Services (BES)
-Mitch
Mitch Bixby
July 23, 2012, 1:27 a.m.