Submitter has sample EDRR Status: Local expert notified
Fast growing bamboo-like stalks - heart shaped leaves - white sprays of flowers
Mitch Bixby Aug. 25, 2011, 6:34 a.m.
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.
Back yard and within our laurel hedge.
Mr. Mitch Bixby City of Portland - Bureau of Environmental Services (BES)
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-Mitch
Mitch Bixby
Aug. 25, 2011, 6:34 a.m.