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Nevada/Placer WMA

Formed in 1999
Chaired by Josh Huntsinger, Deputy Agricultural Commissioner of Placer County
General contact person Joe Damiano, 530-273-2648,
Mapping contact person Ed King
Meetings Held quarterly in various locations in both counties

Outreach Summary


  • Noxious Weeds of the Sierras brochure
  • Yellow starthistle book developed with the University of California Cooperative Extension


Landowner trainings on proper timing and application of herbicide for controlling yellow starthistle are held 2 times per year. Organized weed pull days are held annually in late spring.

Project Highlights

Interstate 80 corridor weed control

The Nevada/Placer WMA worked with PG & E, Placer County Agriculture Department, and many ski resorts to survey 3,204 acres of forested lands along I-80 from Colfax to Donner Summit. Spotted knapweed, tall whitetop and scotch thistle were documented, then treated with herbicides or removed by hand. Ski resorts involved include Soda Springs, Sugar Bowl, Donner Ski Ranch, Boreal, Alpine Meadows, Squaw Valley USA, Northstar at Tahoe, and Homewood.

Red Sesbania control in the American River watershed

In cooperation with the Sacramento WMA, the cities of Roseville and Rocklin, Placer County, and the Sacramento Area Flood Control Agency, the Nevada/Placer WMA controlled red sesbania along streams in the American River watershed. Treatment started in Loomis and continued downstream along Dry Creek and its tributaries. Treatment techniques included hand removal and cut-stump, and the original treatment will be followed by 5 years of follow-up monitoring and control.

Truckee Basin weed control

The Nevada County Department of Agriculture controlled musk thistle, knapweed species, short and tall whitetop, and yellow starthistle with herbicide treatments. The entire Truckee Basin from Donner Summit to the Nevada border has been treated.

Organizations on WMA’s MOU

American River Watershed Group
Bureau of Land Management
California Department of Fish and Game
California Department of Food and Agriculture
California Department of Forestry
California Department of Transportation (CalTrans) District 3
California Native Plant Society
California State Parks Department
Nevada County Agriculture Department
Nevada County Resource Conservation District
Nevada Irrigation District
Placer County Agriculture
Placer County Resource Conservation District
Pacific Gas & Electric Company (PG & E)
Placer County water agency
Tahoe-Donner Association (homeowner association)
U.S. Forest Service, Tahoe National Forest
University of California Cooperative Extension

Other Regular Participants

Lake Tahoe Basin Weed Coordinating Group