Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on Oct 8, 2021

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

Description of specimen

There are about 5-7 mature clumps of japanese knotweed in the place described above.

Commentary

Thank you for looking for invasive species,

Japanese Knotweed in Tillamook County is a high priority for eradication. It is a Oregon State listed Weed, "B" listed. There are different control methods available when dealing with Knotweed. Bio-control, herbicides, mechanical/herbicide, and some natural remedies to explore. Tillamook County SWCD will be happy to assist you in any way possible to take care of this invasive species.

Michael Blankenship
Oct. 12, 2021, 9:19 a.m.

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

At the Bar view jetty park, there is japanese knotweed growing in among the verge - there are two inlets there and there is quite a bit of it around the second inlet. It is loosing its leaves right now so easy to spot.

Expert Reviewer

Michael Blankenship
Tillamook Soil & Water Conservation District

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