Greetings Ms Fisher,

I want to thank you for reporting this infestation of knotweed. Japanese knotweed is a significant problem invader 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 required to control this invader are limited in relation to the overall need. We are currently treating a number of knotweed patches at priority sites across Clackamas County. Your report will help us to prioritize future knotweed treatments.

I am passing along your report to our WeedWise program specialist working in your area. If we are able to assist with treatment this season, we will contact the landowner for additional information.

If you are interested in learning more about the control of this invasive weed, please take a look at the resources provided below.

http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/21809/em9031.pdf

http://your.kingcounty.gov/dnrp/library/water-and-land/weeds/BMPs/Knotweed-Control.pdf

Thanks again for taking the time to report your knotweed. Please feel free to contact me if you have any additional questions.

Sincerely,
______________________________________

Samuel Leininger
WeedWise Manager
Clackamas Soil & Water Conservation District
22055 S Beavercreek Road, Ste 1
Beavercreek, OR 97004
503-210-6006
sleininger@conservationdistrict.org
______________________________________

Samuel Leininger
Oct. 3, 2022, 1:36 a.m.