Colusa County
University of California
Colusa County


Rice is one of the major crops grown in the Sacramento Valley of California. Aproximately 500,000 acres are planted yearly.

General objectives of the Rice Farming Systems program are:

  • To develop and implement educational and applied research programs appropriate for the rice industries in Colusa, Glenn and Yolo Counties.
  • To collect and disseminate relevant and current information that will improve rice production and maximize net farm income, while conserving natural resources and safeguarding the environment.

Luis Espino conducts the Cooperative Extension Rice Farming Systems program in Colusa, Glenn and Yolo Counties. Luis has a Ph.D. in Entomology (2007), and M.Ag. (1999) and a B.S. (1996) in Agronomy . Luis can be contacted at the Colusa office at 530-458-0578 or 530-635-6234, or at

Rice field Glenn county


Photo of Luis Espino Luis Espino
Title: Rice Farm Advisor
Specialty: Entomology, Agronomy
Cooperative Extension Colusa County
PO Box 180, 100 Sunrise Boulevard
Suite E
Colusa, CA 95932
Phone: (530) 458-0578


UC Rice Blog

  • Armyworm Trapping 2017

    Added May 26, 2017
    IMG 2697

    I have set up seven armyworm pheromone traps in the Sacramento Valley, and Michele Leinfelder-Miles is monitoring one trap in the Delta. Last year the traps showed a distinctive peak mid August, when worms started causing problems during heading. This...

  • Dimilin for TPS control

    Added May 18, 2017
    Data 1

    A FIFRA Section 2(ee) Recommendation has been issued for control of tadpole shrimp (TPS) using Dimilin 2L. The recommendation states to use Dimilin two to 10 days after the field is flooded; it also states that Dimilin does not appear to control adult...

  • UC Rice is live on Social Media

    Added May 5, 2017
    Armyworm traps on the edge of a field. Photo by: Luis Espino

    UC Rice is now live on social media! We will be posting events that may be of interest to California rice and of course, lots of pictures of California rice country! Please follow us here:   On Twitter: @UCRice  On...

  • 2nd Annual Rice Weed Course: September 15, 2017

    Added May 1, 2017

    The 2nd Annual Rice Weed Course will take place:  Friday, September 15, 2017 from 8:30AM to 4:25PM (Registration begins at 7:30AM) at the  Hamilton Road Field (on West Hamilton Rd. between Hwy. 99 & Riceton Hwy.) and Rice...

  • Butte® Registration Approved for 2017 Rice Season

    Added April 25, 2017
    Early BUTTE® trials at the Rice Experiment Station, 2012

      BUTTE®, a rice herbicide, has received federal registration in the USA as well as state registration in California. It will be available to California rice growers for the upcoming 2017 season. Gowan Company, along with...

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