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
VegetablesUnited Fresh Leadership Program’s Class 20 Donates 28 Salad Bars To Schools
July 2, 2015
Over the past year, the twelve members of United Fresh Produce Industry Leadership Program’s Class 20 raised funds to support Read More
CitrusFlorida’s Young Farmers Working To Bridge Generation Gap
July 2, 2015
Leadership conference to give GenNext Growers tools to become better agvocates. Read More
ProductionUse Broccoli Rotations To Reduce Disease And Minimize Leaching
July 1, 2015
Crop rotations are a key production practice utilized by every grower. You recognize the importance of rotations to break insect Read More
CitrusIndustry Stakeholders Rip Report Linking Citrus Consumption With Skin Cancer
July 1, 2015
Associations react swiftly; call out flaws in study released by the Journal of Clinical Oncology. Read More
Cucurbits11 Pumpkin And Squash Varieties
July 1, 2015
This month’s variety specs feature focuses on pumpkin and squash varieties. Features highlighted include great disease resistance packages, excellent yield potential, Read More
VegetablesInterview With Hazera Global Onion Product Manager
July 1, 2015
Onion is one of the most produced vegetable crops in the world. A lot of expertise is required to develop Read More
EquipmentHarvest Trends: More Mechanization Needed For Vegetable Growers
July 1, 2015
As the labor supply declines, industry experts and growers say investing in the latest harvesting technology will be necessary. Read More
healthy piece of citrus
Citrus Achievement AwardNeglected Research, Future Growers Top Of Mind For 2015 Citrus Achievement Award Winner
July 1, 2015
Orie Lee advises young up-and-comers to supplement production knowledge with business acumen; calls for more focus on blight. Read More
Business PlanningTake Climate Change — Please [Opinion]
June 30, 2015
It’s a difficult issue because people tend to think of it in terms of something tangible — like the weather. Read More
NutsWalnut Nitrogen Budgeting Critical
June 30, 2015
Applying the right amount of N is not easy because walnuts take a lot, but these days you don’t want to apply too much. Read More
The Latest
VegetablesUnited Fresh Leadership Program’s Class 20 Donates 28 S…
July 2, 2015
Over the past year, the twelve members of United Fresh Produce Industry Leadership Program’s Class 20 raised funds to support Read More
CitrusFlorida’s Young Farmers Working To Bridge Generation Ga…
July 2, 2015
Leadership conference to give GenNext Growers tools to become better agvocates. Read More
ProductionUse Broccoli Rotations To Reduce Disease And Minimize L…
July 1, 2015
Crop rotations are a key production practice utilized by every grower. You recognize the importance of rotations to break insect Read More
CitrusIndustry Stakeholders Rip Report Linking Citrus Consump…
July 1, 2015
Associations react swiftly; call out flaws in study released by the Journal of Clinical Oncology. Read More
Cucurbits11 Pumpkin And Squash Varieties
July 1, 2015
This month’s variety specs feature focuses on pumpkin and squash varieties. Features highlighted include great disease resistance packages, excellent yield potential, Read More
VegetablesInterview With Hazera Global Onion Product Manager
July 1, 2015
Onion is one of the most produced vegetable crops in the world. A lot of expertise is required to develop Read More
EquipmentHarvest Trends: More Mechanization Needed For Vegetable…
July 1, 2015
As the labor supply declines, industry experts and growers say investing in the latest harvesting technology will be necessary. Read More
healthy piece of citrus
Citrus Achievement AwardNeglected Research, Future Growers Top Of Mind For 2015…
July 1, 2015
Orie Lee advises young up-and-comers to supplement production knowledge with business acumen; calls for more focus on blight. Read More
Business PlanningTake Climate Change — Please [Opinion]
June 30, 2015
It’s a difficult issue because people tend to think of it in terms of something tangible — like the weather. Read More
NutsWalnut Nitrogen Budgeting Critical
June 30, 2015
Applying the right amount of N is not easy because walnuts take a lot, but these days you don’t want to apply too much. Read More
FruitsHighlights From The Ohio Produce Growers And Marketers …
June 30, 2015
American Vegetable Grower magazine made its way to the Ohio Produce Growers and Marketers Association (OPGMA) Summer Tour & Field Read More
Insect ControlAlabama Insect Scouting Report Indicates Armyworm Numbe…
June 30, 2015
Report discusses caterpillars, sucking pests, and cowpea curculio activity and management. Read More
Nutrient ManagementResearchers Say Cover Crops May Help Save Soil In Flood…
June 30, 2015
According to experts, planting cover crops may help preserve healthy soil in fields in fields left empty this year thanks to flooding. Read More
TomatoesGSPP Accreditation Enables Sakata Seed America To Offer…
June 30, 2015
The seed company is now authorized to store, treat, process, package, and distribute GSPP-certified tomato seed for the NAFTA market. Read More
MarketingThe Power Of Local Food [Opinion]
June 30, 2015
Summer is now in full swing and we have entered what I like to call “the season of farmers markets.” Read More
PotatoesInnovative Technology Is Necessary For Potato Growers T…
June 30, 2015
Historically, there has often been opposition or fear of new agricultural technologies and today is no different, but it is critical that growers have access to technologies that meet consumer demand while using less land and conserving soil, water, and energy. Read More
BerriesRainy Weather Causing High Risk For Phytopthora In Berr…
June 29, 2015
With the rainy weather the Midwest has recently received, the conditions for Phytophthora diseases increases. An increased risk for oomycetes, Read More
Apples & PearsWildfires Damage Washington Fruit Businesses
June 29, 2015
More than 1,000 people have been forced to evacuate as a fast-moving wildfire swept into Wenatchee, WA, on Sunday night Read More