Hello Mr. Wells,

Thanks for reporting this infestation of knotweed. Knotweed is a significant problem invader in riparian communities within Clackamas County. The Clackamas Soil and Water Conservation District is working with regional partners to map and catalog known infestations of knotweed to help prioritize future control efforts.

Unfortunately, the resources needed to control this invader are limited in relation to the overall need. As such we currently offer technical information to local landowners to help them develop a management strategy that is effective to their particular site conditions and needs. If you know the landowner or would like assistance to control this population please feel free to contact the Conservation District.

Also please feel free to check these online resources for additional information dealing with knotweed.

http://www.skamaniacounty.org/Noxious_Weeds/TNCreport.htm

http://www.imapinvasives.org/GIST/ESA/esapages/documnts/polycus.pdf


Again thank you for reporting this invader. Feel free to contact me if you have additional questions.

Sincerely,

Sam
______________________________________

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
Aug. 26, 2010, 10:15 a.m.