This project implements coordinated control of invasive knotweed (Polygonum spp.) in the Green River Watershed with an established Cooperative Weed Management Area (CWMA). The project builds on the successful control efforts of the last seven years, and the SWMA will act as the forum for the development of this control strategy and a range of coordinated weed control activities in the watershed. This project surveys the watershed to identify invasive knotweed further from the river's banks than in previous surveys. Priorities will be developed for continued control/eradication with all stakeholders. Priority action funded include monitoring sites controlled in previous years (along Soos Creek) and conducting follow-up treatment as needed, building awareness of invasive knotweed through continued education and outreach, and continued rapid response control by work crews and volunteers of high priority sites on State, County, and private lands. This will ultimately benefit salmon habitat by removing and reducing the deleterious impacts of knotweed on sedimentation, shading, and availability insects and inputs of debris from native vegetation in the watershed.