Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on May 15, 2022

Submitter does not have a specimen
EDRR Status: Local expert notified

Description of specimen

Definitely Japanese Knotweed. Also seen was Italian Arum.

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

All along the east side Jackson St south of 7th in Oregon City

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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