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Cooperative Extension San Joaquin County
University of California
Cooperative Extension San Joaquin County

UC Cooperative Extension

Job Openings/Position Vacancy Announcements

Two Viticulture Advisor positions

Click to read the job descriptions

PVA Viticulture Madera Mariposa Merced

PVA Viticulture Fresno

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.

UC Blogs

About Those Sleepovers...

Male longhorned bees jockeying for position on a guara stem. (Photo by Kathy Keatley Garvey)

We're receiving lots of inquiries about sleepovers ever since we began posting images of male longhorned bees, Melissodes agilis, sleeping on our lavender. Boys' Night Out! While the females sleep in their underground nests, the males cluster on stems....

Posted on Monday, July 28, 2014 at 10:01 PM

Bumble Bees and Spiders Don't Mix?

A camouflaged jumping spider eyes a honey bee on Japanese anemone. (Photo by Kathy Keatley Garvey)

Bumble bees and spiders don't mix, you say? Well, they will at the Bohart Museum of Entomology's open house from 1 to 4 p.m., Saturday, July 26. The family-centered event, free and open to the public, takes place in Room 1124 of the Academic Surge...

Posted on Friday, July 25, 2014 at 9:12 PM

So Beautful, So Exquisite

Anise swallowtail foraging on lantana. (Photo by Kathy Keatley Garvey)

There's something about seeing a butterfly that makes your eyes light up, your smile widen, and your feet feel like skipping. Nature's joy.   So when I was over at Kaiser Permanente in Vacaville last Tuesday, I rejoiced at seeing a...

Posted on Thursday, July 24, 2014 at 9:54 PM

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

Ag Center May 2008


Event Name

UC Blogs

Tejon Ranch Conservancy California Naturalists help with a pipe capping project to keep small animals and birds from getting trapped (Photo: Scot Pipkin) UC leads a long tradition of environmental stewardship in California
Posted 7/25/2014 - Stewardship: \ˈstü-ərd-ˌship: the activity or job of protecting and being responsible for something. In 1862 the Morrill Act was passed to support and maintain colleges of agriculture and mechanical arts, including a later provision that included...

Postdoctoral researcher Jens Stevens (right) inspects an untreated forest after a wildfire. Connecting wildfires to climate change and drought
Posted 7/16/2014 - Longer summers, less moisture and warmer climates are predicted for California's Sierra Nevada mountains. These changing patterns bring frequent droughts and extended wildfire seasons — as seen from the current extreme drought. The question no...

Monitoring honey bee activity in onion seed production Peel back the layers and see what the onion is all about
Posted 7/9/2014 - For crying out loud, who doesn't love an onion? Whether you enjoy them in burgers, broths, sandwiches or soups, or deep-fry them as onion rings or serve them with liver, they're to die for and to cry for. The average American eats 21 pounds of onions...

Bob Timm, shown next to sheep corrals, studied ways to prevent coyotes from preying on sheep. UCCE wildlife specialist Robert Timm retires after 27 years
Posted 7/2/2014 - Robert Timm, director of UC Hopland Research & Extension Center and UC Cooperative Extension wildlife specialist, retired July 1, wrapping up a 27-year career with the University of California. Timm's career has focused on managing wildlife damage...

Farm Fresh Healthcare How-to Guide Northern California farmers are helping hospitals practice what they preach
Posted 6/25/2014 - Inspired by an uptick of diet-related diseases and emerging antibiotic-resistant microbes, doctors are overdue when they insist that hospitals practice their prescriptions for healthy diets and healthier agricultural practices. Anything less would be a...

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