Land Plants - invasive

Knotweed (unknown species) (Fallopia sp.) on May 22, 2009

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

Description of specimen

Scattered plants on island. Not a dense population yet. Could be removed if done soon.

Commentary

Dear David,

Thanks so much for reporting knotweed! In fact, the plant you reported looks like Giant Knotweed. You are absolutely right that small populations like this should be targeted for Rapid Response. Plus, I think the coast fork has relatively little knotweed, so this sight may be a priority. I have notified the Coast Fork Watershed Council and we will work together to determine how and who may respond. Would you be interested in joining a work party to remove knotweed from this or another upstream site?

Also, if you are interested, we will be holding a public training on new high priority invasive species that are on the cusp of gaining a foot hold in the Upper Willamette Valley. Its part of the new WEEDIN program. See this website for more info: http://www.wewetlands.org/weedin.php

This may be of interested to you, especially since you are already aware of the benefits of Early Detection and Rapid Response. It will be held on June 18th from 5:00-8:30 (light dinner included) at the Mount Pisgah Arboretum. Please Contact me at Tania.siemens@oregonstate.edu if you would like to attend or would like more information.
Thanks! And keep reporting!


Tania Siemens
Invasive Species Research Assistant
Oregon Sea Grant Extension
Oregon State University
tania.siemens@oregonstate.edu
cell: 541-914-0701

Tania Siemens
May 22, 2009, 10:54 p.m.