Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on May 27, 2023

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

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 is growing throughout my neighbors back yard and is spreading into my yard it’s in my fence line now.

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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