Email Print Site Map
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

Spiders and Spiders, Oh, My!

A jumping spider ready to jump. (Photo by Kathy Keatley Garvey)

Odds are that Justin Timberlake won't be there. Neither will J. K. Rowling, author of the wildly popular Harry Potter series of books. They hate spiders. In fact, by all accounts, they have arachnophobia, an intense fear of spiders that affects some...

Posted on Tuesday, July 22, 2014 at 10:22 PM

Perfect Camouflage

Camouflaged praying mantis. (Photo by Kathy Keatley Garvey)

What a perfect camouflage! Have you ever seen a green praying mantis hiding among the green growth in your garden? Concealed. Disguised. Camouflaged. The praying mantis is a patient insect. It will lurk for hours in its familiar prayer-like position,...

Posted on Monday, July 21, 2014 at 10:59 PM


A longhorned bee, Melissodes agilis, awakens on a lavender stem. (Photo by Kathy Keatley Garvey)

Just one word--stems. Bees forage on the lavender in our bee yard, but sometimes you'll see them on the stems. Male longhorned bees, Melissodes agilis, sleep together on the stems and it's fascinating to watch them stir in the early morning, wiggle...

Posted on Friday, July 18, 2014 at 10:06 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

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...

Does social media reveal how we feel about cattle grazing?
Posted 6/18/2014 - How do people really feel about cattle grazing on public lands? According to a study of comments on social media, park users don't feel as strongly as one might surmise from attending a public hearing about cattle grazing in parks. To get a more...

Rate this page: 
Webmaster Email: