View the SRWP Facebook Page  View the SRWP Twitter Feed  Signup for the SRWP Email Newsletter

Modoc WMA

Formed in 1999
Chaired by Joe Moreo, Modoc County Agriculture Commissioner’s Office
General contact person Joe Moreo, 530-233-5811,
Meetings Held bi-annually at the Modoc Wildlife Refuge

Outreach Summary


Annual events include: noxious weed workshops focusing on yellow starthistle, perennial pepperweed, and knapweed species, a workshop for homeowners called the "Pretty Plant Workshop" on small sprayer safety; and a weed tour put on jointly by the Modoc County Agriculture Commissioner, the farm advisor, and the WMA.

Media coverage

  • local newspaper coverage

Project Highlights

Modoc County Scotch thistle control

The Agriculture Commissioner’s office worked with public lands agencies to control Scotch thistle with herbicides throughout Modoc County and in parts of northern Lassen County.

Surprise Valley noxious weed survey

The WMA, worked to survey and control 1,900 acres of noxious weeds in Surprise Valley.  The targeted weeds, which include tall whitetop and yellow starthistle, were treated with herbicides.  Project partners include Surprise Valley Resource Conservation District, Bureau of Land Management’s Surprise Field Office and the Fort Bidwell Reservation.

County A- and B-rated weed mapping

Dyer’s woad, tall whitetop, squarrose knapweed, Russian knapweed, Scotch thistle, Canada thistle, bull thistle and crupina were mapped using GPS/GIS throughout Modoc County.  The maps have been used for strategic weed control planning.  Project partners include North Cal-Neva Resource Conservation and Development, Inc., Modoc County Agriculture Department, U.S. Forest Service, Modoc National Forest, Bureau of Land Management Alturas Field Office, and the Central Modoc Resource Conservation District.

Organizations on WMA’s MOU

Bonneville Power Company
Bureau of Land Management, Alturas Field Office
Bureau of Land Management, Lakeview Field Office
Bureau of Land Management, Surprise Field Office
California Department of Fish and Game
California Department of Food and Agriculture
California Department of Transportation (CalTrans), District 2
Central Modoc Resource Conservation District
City of Alturas
U.S. Forest Service, Fremont National Forest
Goose Lake Resource Conservation District
Intermountain Hay Growers Association
Lava Beds National Monument
Lava Beds Resource Conservation District
Lookout Pest Abatement District
Modoc County Cattleman’s Association
Modoc County Department of Agriculture
Modoc County Farm Advisor
Modoc National Forest
Modoc National Wildlife Refuge
Modoc-Washoe Experimental Stewardship Program
Natural Resources Conservation Service
North Cal-Neva Resource Conservation and Development, Inc.
Oregon State University, Lake County Extension Service
Pit Resource Conservation District
Stronghold-Newell Pest Abatement District
Surprise Resource Conservation District
Tuscaronra Natural Pipeline
Vya Resource Conservation District
W.M. Beaty and Associates