Marin Sonoma WMA


Chair: Stefan Parnay, Marin County Department of Agriculture, Weights and Measures

Secretary: Kat Knecht, Marin County Parks,

General contact: Stefan Parnay or Chris Cook at (415) 473-6700 or by email at and

Meetings: Meetings currently held as needed due to the WMA reconvening in 2019 and getting reestablished. A set meeting schedule will likely be established at a later date. Contact the Marin County Department 0f Agriculture at (415) 473-6700 to find out the next meeting date.

Webpage: For more information visit

Outreach Summary:


  • Do You Know These Invasive Weeds? brochure
  • Broom Fact Sheet brochure
  • Invasive Plant Facts for Gardeners and Homeowners Handout
  • Working List of Suggested Alternatives to Invasive Plants that may be found in North Bay Handout
  • Voluntary Codes Of Conduct for Nursery and Landscape Professionals Handout


  • Newspaper

Organizations on WMA’s MOU (intend to update MOU by 2021)

  • Audubon Canyon Ranch
  • California Native Plant Society, Marin Chapter
  • California Native Plant Society, Milo Baker Chapter
  • California State Parks
  • Marin County Agricultural Commissioner
  • Marin County Open Space District
  • Marin Municipal Water District
  • Point Reyes National Seashore
  • Sonora County Agricultural Commissioner
  • Sonora Ecology Center