Good Morning Ms. Kimberly,

Thank you for reporting your invasive weed sighting to the Oregon Invasive Species Hotline. it is great to see local residents taking an active role to control invasive weeds in our area.

Old Man's Beard (Clematis vitalba) is a state listed class B noxious weed impacting our area. This troublesome climbing vine grows vertically up trees and structures, where it can damage structures, and smother trees and shrubs. Old man's beard also increases the potential for toppling trees during high wind events. The vines add considerable weight to the trees, and increase the drag during our winter wind events. As such we strongly encourage landowners to actively manage for this invasive.

In our area, Old Man's Beard is widespread. As such, we rely upon individual landowners to take an active role in control this invasive weed on their property.

Below are links to several resources that you may find useful to help control Old Man's Beard.

http://your.kingcounty.gov/dnrp/library/water-and-land/weeds/BMPs/Old-mans-beard-Clematis-vitalba-control.pdf

https://www.portlandoregon.gov/bes/article/172621

https://4ccwma.files.wordpress.com/2012/11/clematis.pdf

https://www.oregon.gov/ODA/shared/Documents/Publications/Weeds/OldmansBeardProfile.pdf

Please review the documentation and feel free to contact me directly if you have additional questions.

Thanks again for your report and good luck in all your efforts.

Samuel Leininger
WeedWise Program Manager
Clackamas Soil & Water Conservation District
221 Molalla Ave. Suite 102
Oregon City, OR 97045
503-210-6006
sleininger@conservationdistrict.org

Samuel Leininger
Oct. 13, 2016, 3:32 a.m.