Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on Sep 2, 2017

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

Description of specimen

Large growth plant of Japanese Knotweed

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 Knotweed location N. side of Barlow Trail Rd. It was reported and treated last year (2016) Immediately East of Clackamas County rock/ road storage yard ,approximately 200 feet east of their access gate.

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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