Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on May 19, 2016

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

Japanese knot weed rapidly expanding over 3 years time.

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

Japanese knot-weed along northern perimeter of Barclay park at 1300 block of John Adams st

Expert Reviewer

Samuel Leininger
Clackamas Soil and Water Conservation District
4-County Cooperative Weed Management Area
Columbia Gorge Cooperative Weed Management Area

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