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Ongoing Projects

United States Forest Service Olympic Peninsula Cooperative Noxious Weed Control

Guided by the USDA Forest Service motto, “Caring for the land and serving people”, MCNWCB works to support the Forest Service mission by:

  • Promoting a conservation ethic which recognizes the health, productivity, diversity, and beauty of our natural resources.
  • Providing technical assistance to private landowners, encouraging them to practice good stewardship in meeting their land management objectives.
  • Developing and providing scientific and technical knowledge aimed at improving our capability to protect, manage, and use forests and rangelands.
  • Providing work, training, and education in pursuit of the mission.

Since 2005, MCNWCB has utilized Title II Participating Agreement funding to build program capacity while providing an experienced and knowledgeable resource to other Mason County departments and landowners, both public and private.

A crew member applies a foliar application to noxious weeds in a meadow in the Olympic National Forest. In the background, another crew member surveys.

MCNWCB staff perform control activities in the priority sites in the Olympic National Forest, including those that are botanically significant such as this meadow.

Washington State Parks Funding

Since 2007, MCNWCB has intermittently collaborated with WA State Parks on noxious weed control activities, including at Lake Isabella, Hope Island, Belfair, and Potlatch State Park.

In 2021, MCNWCB received funding from WA State Parks and provided them staff support, equipment, and control activities to control several noxious weed species at Belfair, Potlatch, and Lake Isabella State Parks. In 2022, MCNWCB utilized County and WSDA funding to continue control at Belfair State Park.

Funding would be utilized in 2023 to continue the work accomplished in 2021 and 2022, and to survey state park properties that MCNWCB has had no historic involvement, including Jarrell Cove and Harstine Island State Park properties.

Three crew members carefully deadhead meadow knapweed in a meadow at Lake Isabella State Park.

In 2020, a Puget Sound Corps crew helped MCNWCB staff control meadow knapweed at Lake Isabella State Park. At this site, crew members deadheaded plants prior to careful treatment.

Washington State Department of Agriculture Noxious Weed Funding

Since 2007, WA State Dept. of Agriculture has intermittently provided funding to MCNWCB for the eradication of giant hogweed and the control of knotweed and perennial pepperweed. Projects involve citizen engagement, survey, documentation, and treatment.

Giant Hogweed Eradication

Since 2007, MCNWCB has prioritized documentation, control, and eradication of giant hogweed. Grant funding supplements county resources to support surveys for giant hogweed, initiate property owner contacts, and provide control assistance.

Read the 2022 Giant Hogweed Eradication Project Report.

This image shows the distribution of giant hogweed in Mason County as of 2021. It also shows two large giant hogweed infestations, one in the foreground of the Twanoh State Park sign.

Knotweed Control

Since 2013, WSDA has provided stable, dedicated funding, which supports Mason County Noxious Weed Control’s efforts to control knotweed in the county. Initial control measures took place along three systems, North Bay/Allyn, Sherwood and Finch Creeks. With continued funding, the MCNWCB has expanded project scope to include additional creeks.

Read the 2022 Knotweed Control Project Report.

Perennial Pepperweed Control

In 2018, MCNWCB staff identified perennial pepperweed, a Class-B Designate species, growing along Hood Canal shoreline at Belfair State Park. This noxious weed outcompetes native vegetation, leading to degraded habitat for wildlife and risk of erosion. This was the first documented infestation along the Hood Canal, and since then several other infestations have been found. In 2021, WSDA provided funding to develop a comprehensive plan to target properties in Mason County with known perennial pepperweed infestations and to survey for new infestations along the Hood Canal. In addition to funding provided by this contract, Department of Natural Resources Aquatic Invasive Species Weed Control Program (DNR AIS) provided Earth Corps crew assistance for the control of known perennial pepperweed infestations.

Read the 2022 WSDA Perennial Pepperweed Report.

In the foreground there is flowering Puget Sound gumweed. In the background is a large dead stand of perennial pepperweed.

At Belfair State Park, MCNWCB staff and crews have carefully treated perennial pepperweed. Over time, there has been a resurgence of native species including Puget Sound gumweed, a beloved flower by native pollinators.