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

IrrigationWet December Predicted For Parched California
November 25, 2014
National Weather Service says above-normal precipitation expected; it may continue through the winter in central and southern parts of the Golden State. Read More
Apples & PearsEPA Approves Three New Moth Mating Disruption Products
November 25, 2014
Codling moth and oriental fruit moth are targeted by apple and pear growers. Read More
VegetablesSakata Hosts Annual Fall Field Trials
November 25, 2014
Growers and dealer partners gather to see new varieties at the company's South Florida field station. Read More
VegetablesStokes Seeds Presents Their Latest Vegetable Varieties
November 25, 2014
For more information, contact: Stokes Seeds P.O. Box 548 Buffalo, NY 14240-0548 800-263-7233; fax: 800-272-5560 stokesseeds.com Read More
VegetablesAbbott & Cobb Presents Their Latest Vegetable Varieties
November 25, 2014
For more information, contact: Abbott & Cobb P.O. Box 307 Feasterville, PA 19053 800-245-SEED; fax:215-245-9043 abbotcobb.com Read More
VegetablesVariety Trials 2014: Rupp Seeds
November 25, 2014
Check out new pumpkins weighing between 18 and 20 pounds as well as new powdery-mildew tolerant butternut squash hybrids. Read More
Food SafetyMultistate Salmonella Outbreak Linked To Bean Sprouts
November 25, 2014
FDA and the Centers for Disease Control and Prevention along with state and local officials continue to investigate the food-borne illness outbreak. Read More
Insect & Disease UpdateCitrus Survey: New Management Techniques Trending
November 25, 2014
Growers widen their tactical approach to survive HLB. Read More
FruitsFruitGrowerConnect Brings Buyers And Sellers Together [Slideshow]
November 25, 2014
Suppliers and growers got down to business in San Diego discussing current needs, solutions, and ways to increase efficiencies on the farm. Read More
Vegetables13 Must Have Carrot Varieties [Slideshow]
November 24, 2014
Browse the slideshow for information on 13 carrot varieties to add to your collection. Read More

The Latest

IrrigationWet December Predicted For Parched California
November 25, 2014
National Weather Service says above-normal precipitation expected; it may continue through the winter in central and southern parts of the Golden State. Read More
Apples & PearsEPA Approves Three New Moth Mating Disruption Products
November 25, 2014
Codling moth and oriental fruit moth are targeted by apple and pear growers. Read More
VegetablesSakata Hosts Annual Fall Field Trials
November 25, 2014
Growers and dealer partners gather to see new varieties at the company's South Florida field station. Read More
VegetablesStokes Seeds Presents Their Latest Vegetable Varieties
November 25, 2014
For more information, contact: Stokes Seeds P.O. Box 548 Buffalo, NY 14240-0548 800-263-7233; fax: 800-272-5560 stokesseeds.com Read More
VegetablesAbbott & Cobb Presents Their Latest Vegetable Varie…
November 25, 2014
For more information, contact: Abbott & Cobb P.O. Box 307 Feasterville, PA 19053 800-245-SEED; fax:215-245-9043 abbotcobb.com Read More
VegetablesVariety Trials 2014: Rupp Seeds
November 25, 2014
Check out new pumpkins weighing between 18 and 20 pounds as well as new powdery-mildew tolerant butternut squash hybrids. Read More
Food SafetyMultistate Salmonella Outbreak Linked To Bean Sprouts
November 25, 2014
FDA and the Centers for Disease Control and Prevention along with state and local officials continue to investigate the food-borne illness outbreak. Read More
Insect & Disease UpdateCitrus Survey: New Management Techniques Trending
November 25, 2014
Growers widen their tactical approach to survive HLB. Read More
FruitsFruitGrowerConnect Brings Buyers And Sellers Together […
November 25, 2014
Suppliers and growers got down to business in San Diego discussing current needs, solutions, and ways to increase efficiencies on the farm. Read More
Vegetables13 Must Have Carrot Varieties [Slideshow]
November 24, 2014
Browse the slideshow for information on 13 carrot varieties to add to your collection. Read More
CitrusReasons Aplenty Florida Growers Should Feel Good Going …
November 24, 2014
Thanks to recent industry achievements, the next 12-month period is shaping up to be a year to remember --- fondly. Read More
BerriesSuspected Borer Could Be Big Bother To Florida Blueberr…
November 24, 2014
Producers warned to be on the lookout as scientists probe samples. Read More
NutsWatch Your Almonds’ Salt Intake
November 24, 2014
Because of the current California drought, almond growers must pay extra attention to soil salinity. Read More
Varieties & RootstocksHelp On The Way Citrus Growers Can Truly Tap Into
November 24, 2014
Demand for inventory to rise as USDA’s Tree Assistance Program pushes new plantings. Read More
FruitsRegistration Opens Dec. 1 For NAFDMA 30th Annual Conven…
November 24, 2014
The five-day event includes bus tours, educational sessions, workshops, and a business exchange in Tennessee in February. Read More
CitrusIndustry Organizations Sound Off On President’s Immig…
November 21, 2014
Agriculture is not given the attention it so sorely deserves when it comes to the immigration debate. Read More
Insect ControlDon’t Turn Your Back On Striped Blister Beetles
November 21, 2014
Learn how to ID, the survival and spread, as well as management methods of this vegetable pest. Read More
CitrusRamped-Up Predatory Mite Production To Benefit Growers
November 21, 2014
Biologics company Beneficial Insectary now rearing two species in its California facility. Read More