Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on Oct 7, 2024

Submitter does not have a specimen

Description of specimen

Small clump that appeared this year

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 by a culvert containing Arata Creek before it passes under 238th

Expert Reviewer

Jacob Rose
Institute for Natural Resources

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