This project will continue the work that was begun with SRFB project #09-1538 in 2010, by funding eradication of Japanese knotweed in the South Prairie Creek basin. This is Phase 2 of that project. The project fits well within regional recovery plans and the Lead Entity’s strategy by restoring and protecting riparian habitat in the most important salmon production area of the Puyallup River system. The project includes all parcels bordering South Prairie Creek, from its confluence with the Carbon River to its headwaters, including all tributaries. A complete survey of the basin has been conducted and some progress was made on eradication of significant stands, mostly in the upper reaches of the basin. This project will continue an existing strategy by surevying knotweed stands, treating knotweed stands using a "top-down" approach, monitoring treated stands, and by identifying appropriate sites for future plantings. This strategy is highly likely to succeed. Project staff will work with a hired crew to eradicate knotweed in previously inventoried areas using the "top-down" method for suppression of knotweed. At least 100 acres (approximately 1.65 stream miles) will be treated as part of this project. This project will provide benefit to all freshwater stages of other anadromous salmonids, including Puyallup River Chinook, Pink, and Chum, and resident cutthroat and steelhead trout. If this project is not funded, the progress made by project #09-1538 will be lost.