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

UC Cooperative Extension

Cleaning Up Wildfire Ash Safely

You can avoid many health hazards from wildfire ash following these tips from California Department of Public Health, found online here

or you can download and print this flier Cleaning Up Wildfire Ash Safely CDPH 7 Aug 2018


ACP (Asian citrus psyllid) found in San Joaquin county

The ACP (Asian citrus psyllid) was found in Lodi and Manteca.  Click here to find out how you can help prevent the spread of this unwanted pest and what to do if you think you have it.

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.

UC Blogs

Tardigrades Aren't Microscopic Any More

Charlotte Herbert Alberts, an entomology doctoral student. The Bohart has its own bear

Tardigrades, also known as the water bears, are microscopic animals but they're not microscopic any more! They're featured prominently on the newly available Bohart Museum of Entomology hooded sweatshirts, the work of artist Charlotte Herbert...

Posted on Friday, February 15, 2019 at 5:00 PM
Focus Area Tags: Economic Development,Environment,Innovation,Yard & Garden

Bee My Valentine!

A yellow-faced bumble bee, Bombus vosnesenskii, nectaring on a spiked floral purple plant, Salvia indigo spires (Salvia farinacea x S. farinacea). (Photo by Kathy Keatley Garvey)

Remember receiving valentine cards that read "Bee My Valentine?" Well, every day can be Valentine's Day when there are bees in your garden. We captured this image several years ago of a queen bumble bee, Bombus vosnesenskii, nectaring on a spiked...

Posted on Thursday, February 14, 2019 at 12:45 PM
Focus Area Tags: Agriculture,Environment,Health,Innovation,Natural Resources,Yard & Garden

See Bugs, Bees and Nematodes on UC Davis Biodiversity Museum Day

A six-foot-long mosaic and ceramic sculpture, Miss Beehaven, anchors the Häagen-Dazs Honey Bee Haven. It is the work of Donna Billick of Davis. (Photo by Kathy Keatley Garvey)

It's going to be a long weekend, but it's a short one when you consider all the things you can do and see at the eighth annual UC Davis Biodiversity Museum Day on Saturday, Feb. 16. Bring your family. Bring your friends. Bring your camera. The...

Posted on Wednesday, February 13, 2019 at 4:41 PM
Focus Area Tags: Agriculture,Economic Development,Environment,Innovation,Natural Resources,Pest Management,Yard & Garden

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

ANR is partnering with UC Merced and UC Irvine scientists to develop new tools and methods for better land management. New project to build climate resilience through improved land management
A $4.6 million grant to UC Merced and UC Irvine will help UC Agriculture and Natural Resources researchers develop new tools and methods for California land owners to better manage the state's forests, shrub lands and grasslands. California's...

UCCE cropping systems advisor Jeff Mitchell with a shovelful of healthy soil at the UC West Side Research and Extension Center. Researcher invites public to visit San Joaquin Valley soil health demonstration site in Five Points
UC Cooperative Extension cropping systems specialist Jeff Mitchell is issuing a standing invitation to the public to visit the site of an ongoing conservation agriculture research project and see for themselves the results of long-term soil-building...

A possible climate change outcome in California may be returning farmland to less-intensive uses, such as grazing. UC Cooperative Extension ramps up its climate change response
While scientific reports continue to mount confirming that global climate change is increasing temperatures, causing more frequent weather extremes and raising the sea level in California, UC Cooperative Extension is working to ensure the worst...

Tree leaves and needles are removed because they block sunlight needed for marijuana plants. Pacific Southwest Region 5 photo, via Flickr New Cannabis Research Center to explore environmental, social impacts of legalization
  Cannabis is unlike any other agricultural crop. Because of its circuitous history — once illegal to grow, and now legal but heavily regulated — cannabis has cast a unique footprint on the environment and the communities of farmers...

Sheep and cattle grazing can reduce the fuel load for a potential wildfire. (Photo: Dan Macon) Livestock grazing helps California tackle wildfire
California is searching for solutions to the wildfire crisis. Livestock ranchers believe they can help. At the 14th Annual Rangeland Summit in Stockton in January, more than 150 ranchers, public land managers and representatives of non-profit...

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