Lake Tahoe Basin WMA

Region covered : The Lake Tahoe Basin (using the same boundary as the USFS Lake Tahoe Basin Management Unit) is a bi-state group that includes five counties.

Chair: Wendy West, University of California Cooperative Extension

General contact: Wendy West at (530) 621-5533 or

Mapping contact: LeeAnne Mila at (530) 621-7403 or

Meetings: Held quarterly at USFS Tahoe Basin Management Unit Conf. Rm., South Lake Tahoe

Webpage: Updated in early 2009 and quite worth reviewing.

Formed: 2002

Lake Tahoe Basin WMA
Lake Tahoe Basin WMA conducts road surveys for early
dectection and rapid response on plants like diffuse knapweed.
Photo courtesy Wendy West

Outreach Summary:


  • Invasive Weeds of the Lake Tahoe Basin brochure

  • Sweep Broom Out of Your Yard! brochure

  • Know Your Thistles brochure

  • Don’t Plant at Pest – Lake Tahoe Basin version brochure

  • Why Should I Care About Invasive Weeds? brochure

  • Know Your Noxious Neighbors! – A Homeowners Guide to Identifying and Controlling Invasive Weeds brochure


  • Annual Invasive Weeds Tour – during California Invasive Weeds Awareness Week
  • Training for contractors at the annual BMP Training
  • Weed identification trainings for field crews and the general pubic
  • Informational booths at neighborhood block parties – Earth Day
  • Coordinate outreach efforts with the Aquatic Invasive Species group


  • Newspaper
  • Radio

Project Highlights:

   Lake Tahoe Basin wide multi-weed removal project

  • This weed removal project focuses on a Basin wide eradication of spotted knapweed, tall whitetop, diffuse knapweed, Dalmatian and yellow toadflax, Canada thistle, oxeye daisy, sulfur cinquefoil and Klamathweed. Early detection and rapid response are the primary goals for this area because populations are still small. Methods of control and treatment of invasives by hand crews are hand pulling, digging, mulching and herbicide application. All populations are mapped and resurveyed annually. Strategic goals (what’s being protected): water quality and clarity, wildlife habitat, threatened plant species – Tahoe yellow cress, protection from increased fire risk from invasives (e.g. Scotch broom). In this project all partners are involved.

Organizations on WMA’s MOU

  • Nevada Department of Transportation
  • University of California Cooperative Extension
  • Tahoe Resource Conservation District
  • California Tahoe Conservancy
  • University of Nevada Cooperative Extension
  • El Dorado County Department of Agriculture
  • Nevada Department of Agriculture
  • California States Parks and Recreation
  • Placer County Department of Agriculture
  • California Department of Transportation
  • Douglas County Weed Control
  • United States Department of Agriculture Forest Service
  • Washoe Tribe of Nevada
  • Nevada Tahoe Conservation District
  • Tahoe Regional Planning Agency
  • Nevada State Parks

Other regular participants

  • Lahontan Regional Water Quality Board
  • California Department of Food and Agriculture
  • Tahoe Keys Homeowners Association
  • University of Nevada – Master Gardeners