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.
"Biomedical science was not always the hypercompetitive rat race that is has become in recent years. Consider the story of Charles Darwin, as he developed his theory of evolution through natural selection. That discovery became the organizing principle...
You've heard of "musical chairs," that anxiety-driven elimination game involving chairs, music and players. When the music stops and a chair is eliminated, the players race for the remaining seats. No one wants to be the first loser. Well,...
If there's any flower that should be crowned "Autumn's Majesty," that would be the Mexican sunflower (Tithonia rotundifolia), aka "Torch."A member of the sunflower family (Asteraceae), it carries "the torch of life" throughout spring, summer and autumn,...
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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
Lessons to be learned from Northern California fires
Posted 10/20/2017 - It's Deja Vu all over again - Yogi Berra Once again I'm asked to provide some perspective on yet another catastrophic situation affecting the North Coast. In 2015, it was the Valley Fire. In 2016, it was the Clayton Fire. This year there are so many...
UC California Naturalists interpret nature with art
Posted 10/19/2017 - Art is an expression of creativity, a conveyance of beauty, and for naturalists, it is a way to process, remember and interpret nature. Many branches of nature art are popular, such as photography, painting and sketching. The UC California Naturalist...
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...