Weed Smackdown

2017WW volunteer pull – 3

Upper Basin Weed Smackdown

Before (L) and after (R) photos of a Policeman’s Helmet treatment site

Following our 2013-2015 field seasons in partnership with Clackamas County Soil and Water Conservation District (CCSWCD) and the Sandy River Basin Vegetation Restoration Coalition (SBVRC), we have identified the Salmon River as the uppermost extent of Policeman’s Helmet, a priority invasive species, in the Sandy River Basin. The Council coordinates our efforts with CCSWCD program staff to reach out to individual landowners to gain permission to survey and eradicate priority invasive species on their property, including Policeman’s Helmet, along the Salmon River corridor.

Volunteers pull Policeman’s Helmet at the Wildwood Recreation Site

Most of the invasive plants on our sites are adjacent to water where juvenile salmon are present, a condition that urges avoidance of potential chemical treatment if possible. Hand pulling of Policeman’s Helmet has occurred each summer from 2012-2015 and has helped reduce the spread in infested areas, with measurable reduction in the plant’s extent after multiple years of treatment. This project relies on partnerships with CCSWCD, the Project YESS Habitat Restoration Crew, Bureau of Land Management, US Forest Service, and The Nature Conservancy. The Council also hosts volunteer work parties to involve local residents in the reduction of this invasive species, and educates participants on how to identify priority weed species.