Land Plants - invasive

Scots Broom (Cytisus scoparius) on May 21, 2012

Submitter has sample

Description of specimen

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.

Commentary

I've read this is a serious problem that most likely has funding that can help rid the spread of this Scotch I would greatly appreciate contact from any resource that can help me with this problem. My family enjoys this area and it is also a protected spawning riverbed. I believe this plant and the insects living in it are consuming the natural habitat on our property, the county river front property and a great amount of property on Mount Hood. These images are just a small sample from our property. I can take more from all along highway 26 if needed. Please Help?!? Thanks Again, Debra Clark. 832-341-4225 or dlc71@ymail.com

Note: I've also sent a note to Weedwise

Reporter
May 21, 2012, 6:27 a.m.

Hello Mrs. Clark,

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.