Giant Knotweed (Fallopia sachalinense) on Jun 3, 2020
Submitter does not have a specimen EDRR Status: Local expert notified
Description of specimen
Been mowed many times.
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
Road side, in the drainage ditch.
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