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

They Lost It All in the Raging Inferno in Paradise

Entomologist Brennen Dyer, shown here at work at the Bohart Museum of Entomology, UC Davis, lost it all in the Paradise inferno known as Camp Fire. His supervisor, Lynn Kimsey, director of the Bohart Museum and UC Davis professor of entomology, encouraged him to set up a gofundme account.

Paradise isn't. It was, though. And it will be again when it's rebuilt. #ParadiseStrong. The raging inferno known as "Camp Fire" that started Nov. 8 on Camp Creek Road, near Pulga, Butte County, California, ranks as the deadliest and most destructive...

Posted on Tuesday, November 13, 2018 at 6:38 PM
Focus Area Tags: Environment Natural Resources

Autumn's Hues: The Gulf Fritillary and Mexican Sunflower

A newly eclosed Gulf Fritillary. (Photo by Kathy Keatley Garvey)

"The butterfly counts not months but moments, and has time enough."--Rabindranath Tagore  When we think of orange and autumn, we think of the marriage of the Gulf Fritillary (Agraulis vanillae), and the Mexican sunflower (Tithonia). The...

Posted on Monday, November 12, 2018 at 10:02 AM
Focus Area Tags: Environment Yard & Garden

Bohart Museum Open House: Focusing on Urban Entomology

Booklice are nearly microscopic insects, Liposcelis bostrychophila, or

Mark your calendars! The next open house at the Bohart Museum of Entomology, located in Room 1124 of the Academic Surge Building on Crocker Lane, UC Davis campus, is set for 1 to 4 p.m., Sunday, Nov. 18. It's free and family friendly. "The focus is...

Posted on Friday, November 9, 2018 at 5:00 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

California water travels from the high-mountain headwaters of the Sierra Nevada to the vast groundwater basins in the valleys below. Communication is key to action on California’s new water narrative
Posted 11/1/2018 - UC scientists, students and water agency professionals took a critical look inwards and a radical look outwards when they gathered in Sacramento in October to reimagine California water. The event was the fourth annual gathering sponsored by UC ANR's...

A new generation of ranchers is working to preserve California's rangelands. Change on the range
Posted 10/30/2018 - A new breed of ranchers is bringing diverse demographics and unique needs to rangeland management in California. These first-generation ranchers are often young, female and less likely to, in fact, own a ranch. But like more traditional rangeland...

The Benzinger Family Winery is a diversified vineyard in Sonoma County. (Photo: Corey Luthringer) Bring the wild back into our farmlands to protect biodiversity, researchers say
Posted 10/18/2018 - Berkeley — With a body the size of a fist and wings that span more than a foot, the big brown bat must gorge on 6,000 to 8,000 bugs a night to maintain its stature. This mighty appetite can be a boon to farmers battling crop-eating pests. But...

Google map shows results of the SOD blitzes available online at sodblitz.organd Green icons identify trees sampled that tested negative for SOD. Red icons were SOD-infected trees. Dry conditions keep sudden oak death in check, yet significant outbreaks continue
Posted 10/9/2018 - Sudden oak death, which has killed millions of trees in California over the past 20 years, is spreading more slowly, according to California's most recent citizen-science sudden oak death survey. The 2018 SOD Blitz results indicate Phytophthora...

Kearney REC director Jeff Dahlberg speaks to participants at Open Farm. Open Farm 2018 and UC ANR promote ag technology
Posted 10/8/2018 - A torrent of technology is flowing into the agricultural sector. To make sense of it, UC Agriculture and Natural Resources, Fresno State and West Hills Community College came together with technology vendors and growers at Open Farm 2018, held in October...

Rate this page: 
Webmaster Email: