Submitter does not have a specimen EDRR Status: Local expert notified
knotweed growing in a ditch
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.
ditch by the walking path
Coleman Hepner Tualatin SWCD
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