Plumas & Sierra Counties WMA


Chair: Jennifer Wiley, Plumas County Agriculture Department

General contact: Jennifer Wiley, 530-283-6365,

Mapping contact: Jennifer Wiley, 530-283-6365

Meetings: Bi-Annually at the Plumas County Agriculture Department offices


Outreach Summary:



  • Seminars and workshops for local landowners
  • Weed tours are held annually
  • Weed booth at county fair


  • Local press releases.

Project Highlights:

   Noxious weed roadside treatments

  • Roads throughout the WMA are mapped and treated for yellow starthistle, tall whitetop, spotted knapweed and scotch broom. Some treatment also occurs on private lands. CalTrans and the CHP participates in the project by providing traffic control.

   Plumas/Sierra mapping program

  • The WMA continually maps all known and newly discovered sites of CDFA rated noxious weeds throughout the two counties. They use geographic software for mapping, and all the data collected is entered and updated in CalWeedMapper.

Organizations on WMA’s MOU

  • Bureau of Land Management – Eagle Lake and Carson City  District Office
  • California Department of Transportation (CalTrans), Districts 2
  • Collins Pine (timber company)
  • Feather River Land Trust
  • Feather River RCD
  • Natural Resources Conservation Service
  • Plumas County Public Works
  • Plumas-Sierra Cattlemen
  • Plumas-Sierra UCANR Cooperative Extension
  • Plumas-Sierra Farm Bureau
  • Sierra County Public Works
  • Sierra Pacific Industries (timber company)
  • Sierra Valley RCD
  • Soper-Wheeler (timber company)
  • University of California Cooperative Extension
  • US Forest Service – Plumas, Lassen, Tahoe, Humboldt-Toiyabe National Forests
  • USDA Wildlife Services
  • W.M. Beatty Associates (timber company)

Other regular participants

  • Other local landowners