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.
Sometimes you get lucky. Sometimes you go hungry. Take the case of the huge jumping spider (maybe a male Phidippus regius) hanging out in our Spanish lavender. Hey, pretend I'm not here! It stealthily crawls up and down the stems, blending into...
If you like writing with light (photography), then you'll probably love capturing images of honey bees spinning like helicopters. In the late afternoon, when the light softens, head over to your favorite Spanish lavender patch. Pull up a chair, listen...
Let's wing it, they said. And they did. But this event wasn't "winged"; it was well planned and rooted in educational information. Wings? A reference to the flutter of the ever decreasing butterfly wings. The occasion? The inaugural "Wing It"...
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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
National Poison Prevention Week — March 19-25, 2017
Posted 3/22/2017 - According to the Centers for Disease Control and Prevention (CDC), poisoning is the No. 1 cause of injury-related death in the United States, and 1,073 people in California were poisoned by pesticides in 2014 alone. Each year since 1962, National Poison...
UC water institute announces 2017 grant recipients
Posted 3/13/2017 - The UC California Institute for Water Resources (CIWR) has announced the recipients of six grants to address the most critical water issues in the state. For this program, the Institute leverages funds it receives from the Water Resources Research Act of...
Reevaluate the Sierra Nevada landscape after removing dead trees
Posted 3/9/2017 - This winter, a generous amount of rain and snow has fallen on California, but it can't erase the brown swaths of dead and dying trees in the Sierra Nevada caused by five years of drought and decades of forest mismanagement. Fire suppression and the...
Fine feathered friends forever
Posted 3/8/2017 - Forget BFF (Best Friends Forever). For Solano County 4-H'er Jarred Burkett, it's also FFFF (Fine Feathered Friends Forever). Jarred, 10, a member of the Sherwood Forest 4-H Club in Vallejo raises free-range chickens at his American Canyon home —...
National Invasive Species Awareness week: Feb. 27 – March 3, 2017
Posted 2/28/2017 - Invasive species are plants, animals, fungi or microbes that are not native to an area, but can quickly establish, multiply and become pests. These species can hurt the environment, agricultural production and even human health in some instances (e.g....