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

UC Cooperative Extension

ACP (Asian citrus psyllid) found in San Joaquin county

AsianCitrusPsyllid1
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

UC Davis Faculty, Staff to Offer Expertise at Bee Conference

A honey bee heads for a tower of jewels, Echium wildpretii. (Photo by Kathy Keatley Garvey)

Excitement is building for 40th annual Western Apicultural Society (WAS) conference, set Sept. 5-8 at the University of California, Davis, its birthplace. The non-profit educational organization, geared for small-scale beekeepers in the western United...

Posted on Wednesday, August 23, 2017 at 5:19 PM

Bohart Museum Open House: 'Bark Beetle Forest Central'

Bohart Museum of Entomology volunteer Riley Gilmartin of Davis shows a chunk of wood with beetle galleries. (Photo by Kathy Keatley Garvey)

If you attend the Bohart Museum of Entomology open house from 1 to 4 p.m. on Sunday, Aug. 27, you'll learn all about bark beetles but you probably won't recognize the facility. It will be "Bark Beetle Forest Central," says Tabatha Yang, education and...

Posted on Tuesday, August 22, 2017 at 5:02 PM

How Do Insects, Spiders React to a Partial Solar Eclipse?

A honey bee nectaring on African blue basil during the partial solar eclipse in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

The sky darkens. The temperature drops several degrees. A breeze rustles the leaves of the African blue basil. Dogs bark. And off in the distance, a hawk shrills. A partial solar eclipse is about to happen in Vacaville, Calif. I am watching the...

Posted on Monday, August 21, 2017 at 2:05 PM
Tags: eclipse (1), Eric Mussen (236), honey bee (184), milkweed (25), orbweaver (1), praying mantis (68), predator (10), prey (12), spider (13), Tithonia (38)

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Director:
Brent A Holtz Ph.D.

1040

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
e-mail: cesanjoaquin@ucdavis.edu
Click here for a map

Ag Center May 2008

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UC Blogs

PhD student Daniel Rath teaches principles of soil aggregates at Russell Ranch's recent Soil Health Workshop Powers of microbes: UC Davis graduate students get creative to teach farmers about soil microbiology
Posted 8/23/2017 - If you grew up in the 1980s or 1990s (or were a child at heart during that era), the famous Powers of Ten film likely left an indelible mark in your mind. The film starts with a couple lounging on a picnic blanket and zooms out to the outer reaches of...

combined picture captioned August 19th is National Honey Bee Day: Dr. Elina NiƱo reminds us to help honey bees cope with pests
Posted 8/17/2017 - National Honey Bee Day is celebrated on the third Saturday of every August. This year it falls on Saturday the 19th. If you use integrated pest management, or IPM, you are probably aware that it can solve pest problems and reduce the use of pesticides...

Salton Sea. Photo courtesy of NASA New dust sources resulting from a shrinking Salton Sea have negative ecological and health impacts
Posted 8/8/2017 - UC Riverside study shows soils once submerged under the sea and airborne particulate matter are high in sodium and selenium Scientists at UC Riverside investigating the composition of particulate matter (PM) and its sources at the Salton...

There is no known treatment for huanglongbing, which kills citrus trees. How to check your citrus trees for a deadly disease and the pest that spreads it
Posted 7/28/2017 - The incurable citrus tree disease huanglongbing, or HLB, has been detected in Los Angeles and Orange counties and most recently in Riverside. The citrus disease is spread from tree to tree by Asian citrus psyllids, the insects that move...

Joanne O'Sullivan is one of the scouts hired by UC to search for and collect Asian citrus psyllids. UC has boots on the ground in an unrelenting search for Asian citrus psyllid
Posted 7/28/2017 - With two magnifying loops around her neck and a truck stocked with vials and tools for insect collection, Joanne O'Sullivan scouts Ventura County citrus orchards every day. She walks the perimeter, examining newly emerging leaves and tapping branches...

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