Japanese Knotweed (Fallopia japonica) on May 8, 2019
Submitter does not have a specimen
Description of specimen
A few patches of knotweed on an unoccupied commercial property bordering Forest Park with a waterway nearby.
Commentary
None
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
Three patches of Japanese Knotweed. One near a waterway bordering Forest Park.
Expert Reviewer
Mrs. Lindsey Wise Oregon Biodiversity Information Center, inr.oregonstate.edu/orbic Oregon iMapInvasives Institute for Natural Resources Portland State University