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Butte WMA

Formed in 1999
Chaired by Rob Hill, Deputy Agricultural Commissioner
General contact person Rob Hill, 530-538-7381,
Meetings Once every 2-3 months in Oroville

Outreach Summary


  • "Butte County Weed Management Area," a noxious weed brochure


The WMA hosts a booth at the County Fair, and attends Feather River Minders meetings and Farm City Weed events. They also give presentations to groups like the Firesafe Council.

Project Highlights

Butte County weed mapping

Digital GIS maps of high priority weeds have been created by the Agricultural Commissioner’s Office for all rated weeds in the county with the goal of tracking weed presence and guiding management decisions. Species documented include Arundo donax, Japanese dodder, spotted knapweed and skeleton weed.

Arundo control at the Greylodge Wildlife Preserve

In a project funded by the California Department of Water Resources through the Sonoma Ecology Center, the WMA has chemically treated and burned Arundo on 20-24 net acres of the California Department of Fish and Game Greylodge Wildlife Area.

Purple loosestrife, Japanese dodder and yellow starthistle control

Butte WMA has used a variety of treatment methods to control invasive plants throughout the county. Purple loosestrife has been treated with herbicides and hand removal, yellow starthistle has been treated with biocontrols, and Japanese dodder has been treated with plant removal and chemical treatment of the roots.

Organizations on WMA’s MOU

Bureau of Land Management
Butte County Board of Supervisors
Butte County Cattleman's Association
Butte County Department of Agriculture
Butte County Department of Water and Resource Conservation
Butte County Department of Public Works
Butte County Farm Bureau
Butte County Fire/California Department of Forestry and Fire Protection
Butte County Mosquito and Vector Control District
California Department of Fish and Game
California Department of Food and Agriculture
California Department of Parks and Recreation
California Department of Transportation
California Department of Water Resources
California Native Plant Society
California State University Chico
University of California Cooperative Extension, Butte County
United States Forest Service, Plumas National Forest