Central Sierra
University of California
Central Sierra

Invasive Weed Management Program

Proper weed identification is essential for control
Weeds play a major role in California crop production, costing growers millions of dollars annually. More than 250 plants are considered weeds, each with its own particular life cycle, growth habit, mode of reproduction, competitiveness and susceptibility to chemical or mechanical control. With so many crops grown in the state and the vast number of weed types, it is obvious that no one control program will work for all growers or in all situations. This means that farmers, pest control advisors (PCAs), managers and others involved in weed control must be able to identify the weeds that are present before deciding which management or control strategies to use.

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Certified weed-free forage and straw is produced and available for sale in California! And we now have a supplier list!


A survey of weed-free forage suppliers and products has been completed by Wendy West and Becky Miller-Cripps, UCCE - Central Sierra, as part of the Yellow Starthistle "Stop the Spread into the Sierras" project.The weed free forage list was compiled by surveying County Agricultural Commissioners, which offer inspection services to certify materials as weed free. Certified weed-free forage is defined as: hay, feed, straw or straw mulch that has been inspected, and certified not to contain propagative plant parts or seeds of noxious weeds. The availability list is ready for use by land managers, project planners and recreationalist taking horses/livestock into the backcountry! (Read more...)

UC Weed Research and Information Center - Weed identification tool, events, photo gallery and online education. The Weed Research and Information Center is an interdisciplinary collaboration that fosters research in weed management and facilitates distribution of associated knowledge for the benefit of agriculture and for the preservation of natural resources.

UC Weed Science Blog

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Would you like information about our workshops?

We offer workshops throughout the year on various subject matter such as, Pond Management, Invasive Weed Control, and Wildfire - Protecting Your Home, just to name a few. Please add your name to the Join our Mailing List on the top menu to receive information on our next workshop.

Webmaster Email: cecentralsierra@ucdavis.edu