The infestation on the Chelan Ranger District is located along the Lakeshore Trail between the Prince Creek drainage and Hunts Bluff. This is the only known location of crupina in Washington State.
Forest Service and Washington Conservation Corps crews will be pulling weeds and applying herbicides, via hand sprayers, in this area from the latter part of April through the end of May. These crews will be camping at Prince Creek Campground from April 19 through April 26. They will then move to Moore Point Campground and remain there on May 2-9 and May 16-23. These campgrounds will remain open to the public, however, be aware that the campgrounds will be more crowded during these dates.
“In 2012, crews were able to treat around 300 acres with a combination of hand pulling and spot spraying,” said Chelan District Botanist Brigitte Ranne. “To date, efforts have prevented the spread of crupina to other sites down lake, and reduced both the size and density of known infestations,” she said.
National forest visitors can help prevent the spread of this noxious weed by learning how to recognize and avoid it, especially when hiking the popular Lakeshore Trail. Hikers should limit off-trail travel in the infested area to avoid spreading seeds. Informational posters and printed information about the plant are located on bulletin boards at both ends of the trail.
If forest visitors discover a crupina patch without survey flags nearby, please report this location to the Chelan Ranger District at 509-682-4900. Please do not remove any crupina from the area, as you might unintentionally transport seeds.
Chelan County Noxious Weed Program, Washington State Department of Agriculture and Washington State Noxious Weed board are partners in this control effort, which is partially funded through grants from the Secure Rural Schools Self Determination Act.
For more information please contact Brigitte Ranne at the Chelan Ranger District office located at 428 West Woodin Ave in Chelan, or by phone at 509-682-4941.