The San Joaquin County Agricultural Commissioner, in cooperation with the California Department of Food and Agriculture (CDFA) and the United States Department of Agriculture (USDA), is beginning an extensive survey in response to the detection of the Asian Citrus Psyllid (ACP) within the boundaries of the unincorporated community of Woodbridge.

The ACP was positively identified on June 1, 2016, around Woodside Drive and Valley Oak Drive in the unincorporated area of Woodbridge. In response to the detection, an increased number of traps will be deployed in the surrounding properties in an attempt to determine if there is an infestation. There are no pesticide treatment activities being planned at this time; however there will be an expansion of the existing quarantine that currently encompasses the general Lodi area.

The ACP is an invasive species of grave concern because it can carry the disease Huanglongbing (HLB), also known as citrus greening. ACP is found in tropical and subtropical Asia, Afghanistan, Saudi Arabia, Reunion, Mauritius, parts of South and Central America, Mexico, the Caribbean, and in the U.S. (Alabama, Arizona, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, and Texas). ACP was first found in California in 2008 in San Diego County. In recent years, it has spread to Kern, Tulare, Fresno, Madera, Merced and Stanislaus counties in the San Joaquin Valley. All citrus and closely related species are susceptible hosts for both the insect and the disease. There is no cure once a tree becomes infected, the diseased tree will decline in health and produce bitter, misshaped fruit until it dies. The citrus is safe to eat and the disease is not harmful to human health. To date, HLB has been detected on eleven trees at nine different locations in the Los Angeles and Orange Counties.

Tim Pelican, San Joaquin County Agricultural Commissioner, said in a press release the Asian Citrus Psyllid is a dangerous pest of citrus.

“We are working to determine the full extent of this infestation so that we can protect our State’s vital citrus industry as well as our backyard citrus trees,” Pelican said. “Working together we can prevent the spread of this invasive species and the harm it can cause.

While San Joaquin County has very little commercial citrus there is a $2.1 billion dollar industry statewide, not counting the nursery industry, which has increased significantly in some of our neighboring counties in recent years. It is our duty to protect the industry in our jurisdiction, but also the citrus grown by our neighbors in nearby counties.”

Please call the Pest Hotline at 1-800-491-1899 if you think you may have seen the pest. DO NOT remove the pest or any plant materials from the area. For more information on the ACP and HLB disease visit: