Land Plants - invasive

Giant Knotweed (Fallopia sachalinense) on May 9, 2022

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

Larger leaves than Japanese kw.

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

Just south of Livingston rd on Hawthorne on the west side of the rd along a creek between 2 houses.

Expert Reviewer

Sarah Hamilton
Marion Soil & Water Conservation District

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