UC Cooperative Extension
ACP (Asian citrus psyllid) found in San Joaquin county
Who We Are
Across California, the University of California’s 64 Cooperative Extension offices are local problem-solving centers. We are the bridge between local issues and the power of UC research. Our county-based staff is part of the community – we live and work in the areas we serve.
More than 300 campus-based specialists and county-based farm, home and youth advisors work as teams to bring practical, unbiased, science-based answers to problems across California.
As part of the agricultural community, we help farmers develop more-efficient growing methods, solve pest management problems and develop crops and irrigation methods that use less water.
As stewards of the land, we help develop smart water-use strategies, develop wildfire education and help preserve natural areas and farmland.
As advocates for healthy communities, we promote healthy diets and exercise for better health, help Californians learn to choose the most nutritious foods and help shape the citizens of tomorrow through the 4-H Youth Development Program.
And thousands of volunteers extend the reach of our work through the Master Gardener Program and the California 4-H Youth Development Program.
We work in full partnership with federal, state, county and private resources.
We are stewards, problem-solvers, catalysts, collaborators and educators.
We are UC Cooperative Extension.
"The bee hive is the ultimate home sweet home," Amina Harris, director of the UC Davis Honey and Pollination Center, told the crowd at the Western Apicultural Society's 40th annual conference, held in early September at UC Davis. She's right. Just...
Evolutionary ecologist Leslie Saul-Gershenz goes places where many have been but few have ever really seen. Bees and blister beetles, yes. We remember writing about her work in April of 2013 when she addressed the Nor Cal Entomology Society (now...
Friday the 13th is not an unlucky day--not when migratory monarchs make a pit stop at your home on their way to their overwintering sites. Today a male monarch fluttered into our pollinator garden in Vacaville, Calif., and sipped nectar from a tropical...
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Brent A Holtz Ph.D.
San Joaquin County Cooperative Extension
Robert J. Cabral Ag Center
2101 E. Earhart Avenue, Ste 200, Stockton, CA 95206
Phone: (209) 953-6100
Fax: (209) 953-6128
Click here for a map
Hybrid oak trees muddle identification at California Naturalist Regional Rendezvous
Posted 10/16/2017 - Knowing the names of trees is a point of pride for many California Naturalists. So a walk among the diversity of oaks at the Pepperwood Preserve left many feeling humbled. The three-hour excursion was part of the UC California Naturalist Regional...
Houses likely burned from the inside out, says UCCE forest advisor
Posted 10/13/2017 - Preventing embers from getting inside may save homes Photos and video of the Northern California communities that have been hit by wildfires this week show buildings reduced to ash. How could so many homes and businesses burn so quickly in Wine...
A honey of an educational odyssey -- and you're invited
Posted 10/9/2017 - Show me the honey! You've probably tasted wine in California's acclaimed Wine Country, but have you ever tasted honey in the nation's rapidly growing “Honey Country”—the University of California, Davis? Now you can. The UC Davis...
Carbon Neutrality Initiative fellows seek to reduce our carbon footprint
Posted 10/4/2017 - UC Berkeley doctoral candidates Jose Daniel Lara, Allegra Mayer and Carmen Tubbesing, UC ANR's Carbon Neutrality Initiative (CNI) fellows for 2017-18, are studying new sources of renewable energy and strategies to cut carbon emissions. The...
California agriculture contributes to and is impacted by climate change
Posted 9/27/2017 - Agriculture in California is on both sides of the climate change challenge. It is a sector that releases significant quantities of climate-warming greenhouse gases into the atmosphere. At the same time, it is vulnerable to the expected effects of climate...