Citrus Greening Quarantine In Southern California

Citrus Greening Leaves

A 93-square mile quarantine is now in place in the Hacienda Heights section of Los Angeles County following the detection of the citrus disease Huanglongbing (HLB), or citrus greening.

According to the California Department of Food and Agriculture (CDFA), the zone is centered near the Pomona Freeway (Highway 60) and Hacienda Blvd. and extends south into a small portion of Orange County, north into Baldwin Park and West Covina, west into South El Monte and Whittier, and east into Walnut and Rowland Heights.

This area is part of a much larger quarantine already in place for the Asian citrus psyllid, the pest that spreads bacteria causing HLB. The new quarantine will prohibit the movement of all nursery stock out of the area, while maintaining existing provisions allowing the movement of only commercially cleaned and packed citrus fruit. Any fruit that is not commercially cleaned and packed, including residential citrus, must not be removed from the property on which it is grown, although it may be processed and/or consumed on the premises.

“The success of any quarantine depends on cooperation from those affected,” said CDFA Secretary Karen Ross. “The stakes couldn’t be higher for California citrus. We urge residents in the Hacienda Heights-area to do all they can to comply.”

Because the latency period for the development of HLB symptoms in an infected tree can be two years, the quarantine is expected to last at least that long. CDFA, USDA and the Los Angeles County Agricultural Commissioner continue their work to investigate the source of the disease, to survey and test for it throughout the Los Angeles Basin, and to prepare for ground treatment of citrus trees within 800 meters of the find site – tentatively scheduled to begin next week. In the long term, the strategy is to control the spread of Asian citrus psyllids while researchers work to find a cure for the disease.

HLB was confirmed last week in an Asian citrus psyllid sample and plant material taken from a lemon/pummelo tree in a residential neighborhood in the Hacienda Heights area. The disease is bacterial and attacks the vascular system of plants. The Asian citrus psyllid can spread the bacteria as the pest feeds on citrus trees and other plants. Once a tree is infected, there is no cure; it typically declines and dies within a few years.

HLB is known to be present in Mexico and in parts of the southern U.S. Florida first detected the pest in 1998 and the disease in 2005, and the two have now been detected in all 30 citrus-producing counties in that state. The University of Florida estimates the disease has tallied more than 6,600 lost jobs, $1.3 billion in lost revenue to growers and $3.6 billion in lost economic activity. The pest and the disease are also present in Texas, Louisiana, Georgia, and South Carolina. The states of Arizona, Mississippi, and Alabama have detected the pest but not the disease.

The Asian citrus psyllid was first detected in California in 2008 and is known to exist in Ventura, San Diego, Imperial, Orange, Los Angeles, Santa Barbara, San Bernardino, and Riverside counties. If Californians believe they have seen evidence of HLB in area citrus trees, they are asked to please call CDFA’s toll-free pest hotline at 1-800-491-1899.

Leave a Reply

Featured Stories

All Vegetables Stories >All Fruits Stories >All Nuts Stories >All Citrus Stories >

The Latest

Apples & PearsBig Apple Crop Expected
September 2, 2014
Generally high quality predicted at U.S. Apple Association Crop Outlook and Marketing Conference. Read More
Apples & PearsBeware Of Fruit Rots During Apple Harvest
September 2, 2014
Conditions lately have been ripe for fungi fiasco. Read More
Apples & PearsThey’re Back! 2014 Brown Marmorated Stink Bug Populat…
September 2, 2014
Pressure building as traps filling up with pest by the hundreds. Read More
Farm ManagementStudy Shows ‘Megadrought’ On The Radar For …
September 2, 2014
Global warming trends fuel parched prediction from scientists. Read More
Farm ManagementTrimble’s Connected Farm Now Includes Field Data Mana…
September 2, 2014
Trimble adds two apps that work with their Connected Farm Web-based solution, providing growers and their advisors with more detailed field information. Read More
FruitsTips To Help You Manage Postharvest Ripening
September 2, 2014
Humidity, ethylene, and temperature can all impact fruit quality. Read More
CitrusHarness The Marketing Power Of Video
September 1, 2014
Multimedia platform is an effective and inexpensive marketing tool for you to attract new customers and keep existing ones loyal to your brand. Read More
Citrus Achievement AwardDespite Industry Challenges, Florida Citrus Leader Has …
September 1, 2014
2014 Florida Grower Citrus Achievement Award winner Mike Sparks feels confident in crop sector's ability to regain strength. Read More
Florida Ag ExpoFood Safety Modernization Act Is On The Plate
September 1, 2014
Florida Ag Expo agenda to serve up important features of looming regulations. Read More
CEU SeriesCEU Series: Put Weeds Out To Pasture
September 1, 2014
No matter where they are, plants out of place can be problematic. Read More
TomatoesProduction Reaches An All-Time High For Processing Toma…
August 29, 2014
A record high is predicted for the 2014 processing tomato crop. Read More
CitrusFlorida Department Of Citrus Knocks NPR Piece Over Juic…
August 28, 2014
Agency goes to bat for the industry regarding statement slighting OJ's health benefits. Read More
Disease ControlLate Blight Update Reveals Heightened Activity
August 28, 2014
While several states in the Northeast have confirmed the presence of late blight, the disease has not been reported in North Dakota or Minnesota. Read More
CitrusFlorida Energy Firm Charged Up About Citrus Biomass Pot…
August 28, 2014
Machine called a game-changer when it comes to a cost-effective, efficient way for tree removal and re-purposing. Read More
EquipmentNew Tractors Improve Maneuverability And Operator Contr…
August 28, 2014
The Magnum Rowtrac tractors from Case IH meet growers’ cropping needs through a wide variety of row spacing and belt options.   Read More
NutsCalifornia County Passes Ordinance To Protect Walnut Gr…
August 27, 2014
Verification of ownership needed to complete sales of valuable nuts. Read More
NutsAlmond Growers Hit By Russian Import Limits
August 27, 2014
Growers reflect on changes to export market in light of produce ban. Read More
Farm ManagementLeadership And Management Expert To Speak At California…
August 27, 2014
Daniel Goleman will make presentation at California State University-Fresno. Read More