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 butterfly counts not months but moments, and has time enough," wrote the late poet Rabindranath Targoe (1861-1941) of Bengali, who won the Nobel Prize in Literature in 1913. There may not be "time enough" for some species that are rapidly...
Folks are making a bee-line to the Bohart Museum of Entomology, University of California, Davis, for its spring sale. All proceeds support the insect museum in its educational and outreach activities. The gift shop is offering a selection of...
"Adventure Awaits!" the theme proclaimed. And that it did Saturday at the 105th annual UC Davis Picnic Day--especially at the second annual "Virtual Reality Bugs" display at Briggs Hall, the administrative home of the UC Davis Department of Entomology...
Make a Gift Online
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
I have the privilege of engaging California's communities with the aspiration of safeguarding the sustenance and well-being that its oak-woodland watersheds and the people that are a part of them provide. This millennia-long integrated relationship of...
UC Master Gardeners partner with Alzheimer's San Diego in Reminiscence Gardening project
The UC Master Gardener Program of San Diego County has always been open to innovative ways of expanding its mission and passion for gardening into new parts of its community. The San Diego program has a rich history of successful partnering with other...
The worst fire in California history illuminates fire preparation needs
Four months have passed since the Camp Fire, the worst wildfire in California history, ravaged bucolic communities in the Butte County foothills, including Paradise, Concow, Butte Creek Canyon, Cherokee, Yankee Hill and Magalia. Eighty-five people died,...
UC ANR working with USDA to strengthen extension and farmer incomes in Guatemala
Two UC Agriculture and Natural Resources emeritus specialists, two UC ANR advisors and a UC ANR vice provost spent a week in March working in Guatemala to help implement a USDA-funded (UC Davis-managed) project that is rebuilding the extension...
Soil Health Institute scientist visits UC’s long-term soil health experiment in Five Points
Shannon Cappellazzi, one of six project scientists involved in an expansive Soil Health Institute (SHI) initiative, visited the UC West Side Research and Extension Center in March to take soil samples from research plots managed for 20 years with soil...