Japanese Knotweed (Fallopia japonica) on Apr 8, 2024
Submitter does not have a specimen EDRR Status: Local expert notified
Description of specimen
Red tall stem. Probably best reviewed by picture.
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
In my backyard I have located Japanese knotweed. It looks to be 2 shoots.
Expert Reviewer
Samuel Leininger Clackamas Soil and Water Conservation District 4-County Cooperative Weed Management Area Columbia Gorge Cooperative Weed Management Area