Japanese Knotweed (Fallopia japonica) on Jun 11, 2009
Submitter does not have a specimen
EDRR Status: Local expert notified
Description of specimen
Fitsdescription of Japanese knotweed in invasive weed guides -- same leaf, plant size, white flower sprays later in summer. Not that far from a patch that was eradicated next to the Bull Run Bridge a few years ago.
Commentary
Expert Reviewer
Samuel Leininger
Clackamas Soil and Water Conservation District
4-County Cooperative Weed Management Area
Columbia Gorge Cooperative Weed Management Area
Thanks for submitting your report of Japanese knotweed. I have notified land managers in the area to make sure that they are aware of the infestation. Japanese knotweed is fairly widespread in this area, but land managers are working hard to get these infestations under control. Sites are bring prioritized and control efforts will follow when time and resources allow. Thanks again for your report.
Sincerely,
______________________________________
Samuel Leininger
WeedWise Program Manager
Clackamas Soil & Water Conservation District
221 Molalla Ave. Suite 102
Oregon City, OR 97045
503-655-3144 x118
samuel.leininger@or.nacdnet.net
www.conservationdistrict.org
______________________________________
Samuel Leininger
Sept. 1, 2009, 2:43 a.m.