| Chehalis
River Cooperative Weed
Management Area
The goal of a Cooperative Weed Management Area program is to promote cooperative efforts to manage invasive plants and work toward desired plant communities at the watershed level.
A group of concerned land managers and noxious weed boards began meeting over 10 years ago to work together on Washington's second largest river system and it's weed problems.Together, a plan for weed work in this system has been developed.
INTEGRATED AQUATIC PLANT MANAGEMENT PLAN
Some invasive plants of concern: Brazilian elodea, parrotfeather, Japanese knotweed, and purple loosestrife, and spartina in the tidal basin.
Brazilian elodea removal video
knotweed
Grant projects have included: parrotfeather surveying, purple loosestrife control , B. elodea control, and knotweed control.
Information and updates can be found in "Drops of Water", a publication of the Chehalis River Council, and Thurston and Lewis Countys' Noxious Weed Control web sites.
Thurston County Weed Board
Thurston elodea project
Lewis County - Noxious Weed Control
Chehalis River Council
SPARTINA IN THE HARBOR
Grays Harbor County has 2 different types of invasive Spartina - Spartina alterniflora and Spartina densiflora. Spartina alterniflora is found in lower tidal areas and has been very problematic in Willapa Bay. Spartina densiflora has been found in very limited supply in upper tidal areas near Ocean Shores. In 2006 a Grays Harbor Spartina Task force formed in hopes of preventing further infestation.
spartina brochure
The Friends of Grays Harbor have a great spartina page with information and updates:FOGH spartina
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