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 Don't Announce Their Arrival or Departure

A female variegated meadowhawk dragonfly, Sympetrum corruptum, perches on a bamboo stake in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

They don't announce their arrival or departure. If you're an insect photographer, or a wanna-be-insect photographer, expect the unexpected and don't go anywhere without your camera. That applies to such simple things as walking out your back door and...

Posted on Tuesday, October 16, 2018 at 5:00 PM

Spotting the Cabbage White Butterfly

A cabbage white butterlfy, Pieris rapae, heads for lantana in a Vacaville garden. (Photo by Kathy Keatley Garvey)

They're everywhere. But they're not welcome. Agriculturists who commercially grow cabbage and other cucurbits aren't fond of the cabbage white butterlfy, Pieris rapae, because its larvae are pests that ravish their crops. No welcome mat for...

Posted on Monday, October 15, 2018 at 5:02 PM

International Exposure for Three UC Davis-Affiliated Photographers

This winning image of a wasp mimic, Ceriana tridens, ovipositing in the fissures of a tree, will be showcased at the Entomological Society of America meeting in November in Vancouver,B.C. (Photo by Alexander Nguyen)

Images by three UC Davis-affiliated photographers will be among those displayed at the international Insect Salon photography competition at the Entomological Society of America's meeting, Nov. 11-14 in Vancouver, B.C. The insect photographers:...

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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

Ag Center May 2008


Event Name

UC Blogs

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...

Prescribed burn UCCE offers prescribed-fire workshop for land managers
Posted 9/19/2018 - To reduce the dry grasses and shrubs that can fuel intense wildfires, California landowners and land managers are invited to attend a prescribed-fire workshop organized by University of California Cooperative Extension in October. The workshop will...

Plants and wildlife, like this mountain lion, will need to find natural corridors to migrate into areas with suitable climates. (Photo: National Park Service) UC Cooperative Extension works in local communities to help Californians adapt to climate change
Posted 9/12/2018 - Californians received bleak news last month when the state released its fourth assessment of climate change in California. The report predicts severe wildfires, more frequent and longer droughts, rising sea levels, increased flooding, coastal erosion and...

CA climate assessment North Coast UC ANR scientists contribute to California’s Fourth Climate Change Assessment
Posted 8/27/2018 - The California Natural Resources Agency released California's Fourth Climate Change Assessment today (Monday, Aug. 27), at UC Agriculture and Natural Resources scientists contributed substantially...

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