Submitter has sample
Rented property 10/2011. Good size population in clumps of long, straight, green, thin bamboo-like stalks. Early Spring brought more clumps and new growth of clumps on the other end of river access (30 yards?). Within last two weeks, yellow flowers developed on stalks. I attempted to clip one branch to determine if we could clear the LARGE growth. Within minutes several winged insects appeared in decent numbers, which I have now also confirmed are adult in nature. This deterred further clearing.
Note: I've also sent a note to Weedwise
Reporter
May 21, 2012, 6:27 a.m.
Thanks for reporting this infestation of Scotch Broom. This species is a problem invader that many landowners are forced to contend with throughout Clackamas County. The Clackamas Soil and Water Conservation District is working with regional partners to map and catalog known infestations of Scotch broom to help prioritize future control efforts.
As WeedWise Program manager, we also serve as the lead contact in Clackamas County for the Invasive Hotline. Following your email to the District, I have forwarded your contact information to our District planning staff. We may have resources available to help you address these weed concerns and to better manage your riparian resources.
One of them should contact you soon. If you are interested in taking a more active role, you can begin by following these simple instructions to control Scotch Broom
• Small scotch broom plants should be pulled to prevent resprouting.
• Larger scotch broom plants, with stem diameters greater than 2 inches can be cut and will rarely resprout.
• Plants can be chipped and left on site or burned, but be sure to contact your local fire disitrct before initiating any burn.
• Plants may also be disposed of at a county transfer station.
For more detailed information on Scotch Broom control follow the links below:
http://your.kingcounty.gov/dnrp/library/water-and-land/weeds/BMPs/Scotch-Broom-Control.pdf
All the best,
Sam
______________________________________
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
www.conservationdistrict.org
______________________________________
Samuel Leininger
May 22, 2012, 9:27 a.m.