Intermountain Research and Extension Center
Intermountain Research and Extension Center
Intermountain Research and Extension Center
University of California
Intermountain Research and Extension Center


Four miles from the Oregon border, in Tulelake, California, the Intermountain Research and Extension Center (IREC) is one of nine centers under the University of California Division of Agriculture and Natural Resources. IREC supports and facilitates University of California research in field and vegetable crops grown in northeast California, and supports conservation of natural resources in the Klamath Basin.

Please explore our website. Specific contents include announcements, calendar reminders, local weather, biological data, and past & current research reports.

Opportunities for Research and Extension at IREC

Center Highlights 2013

Did You Know?

Intermountain REC Blog

  • IREC Calls for Research Proposals

    Added November 19, 2014
    Sorting Potatoes

    The Intermountain Research and Extension Center is soliciting proposals from researchers for new and continuing research projects in 2015-16. We are a 140-acre research facility located at 4,000 feet elevation near the Oregon border.  We specialize...

  • 2014 Wheat and Barley Harvest Results

    Added November 10, 2014
    Wheat at IREC

    Small Grain harvest results are in!  Agronomy Progress Report No. 318, published by the Agronomy Research and Information Center, contains data on 2014 cereal grain trials conducted throughout California, including results from Intermountain and...

  • Tulelake Onion Research Published

    Added November 4, 2014
    Onion Maggot Plots at IREC

    This article “Evaluation of insecticides and application methods to protect onions from onion maggot, Delia antiqua, and seedcorn maggot, Delia platura, damage” was recently published in the Crop Protection Journal. A free copy of the article...

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