Weed Identification

Proper weed identification is key to a successful program.  Below is a list of where to have weeds identified by trained botanists:

• Weed Research and Information Center
  The Weed Research and Information Center is an excellent resource for developing weed management plans. It has tools for weed identification and biology, effective management options, upcoming events and trainings and access to recent research.
• California Department of Food and Agriculture, Plant Pest Diagnostics Branch
• UC Davis Herbarium
• Contact a local university, botanical garden, or herbarium near you.
• Puncturevine - Tribulus terrestris

Biological Control of Weeds

Biological weed control helps reduce reliance on commercial, synthetic pesticides. Such methods use plants, microorganisms and animals in the management, control and eradication of weeds of concern. Biological control is also available for insect and disease threats to agricultural crops and livestock ~ click here for bio-control of insects and disease.

The Agricultural Commissioner collaborates with CDFA (Biological Control Program) and the University of California (EFNEP Helped Create One of America’s Healthiest Schools) in the introduction and release of biological control agents throughout the county. An example of local biological pest control methods for weeds includes insects to control yellow star thistle.

For more information or to request biological control agents, call the Agricultural Commissioner’s Office at 831-759-7325.
Note that these bio-control agents are typically available in June/July.