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
Pest Control
March 22, 2017
Fear of GMOs is Impacting Quality Food Research [Opinion]
Perhaps the greatest threat to our industry is a public that values instinctual opinion over careful research and the findings of experts who have dedicated years to their field of study. Read More
Business Planning
March 22, 2017
How HortTech Is Solving Grower Challenges
Dozens of tech companies are looking for solutions to real-world problems vegetable growers face. We take a look at what it could really mean for you and your business. Read More
Production
March 22, 2017
Weighing the Good and Bad of Six Soilless Media Options
Trying to decide which growing media is the right one for your greenhouse vegetable production? Take a look at these six options. Read More
Citrus
March 21, 2017
Industry Groups, Ag Leaders React to Proposed USDA, EPA Budget Cuts
New plan would slash USDA spending by 21%. Read More
Freeze protected peach trees in Florida
Cold Protection
March 21, 2017
Freezing Temperatures Hit South Carolina Crops Hard
Peaches, blueberries, and strawberries among crops damaged. Read More
fork digging into a plate full of salad
Citrus
March 21, 2017
Since When Did Eating Get So Complicated? [Opinion]
The bottom line to all this is the way we eat is undergoing massive disruption. Read More
Apples & Pears
March 21, 2017
Two More Lost Apple Varieties Found In Steptoe Butte
Amateur apple detective strikes again with two more finds in abandoned orchards near state park. Read More
Generic produce clamshell packaging
GenNext Growers
March 20, 2017
Packaging: A Powerful Way for Farmers to Reach Consumers
Growers have few opportunities to communicate with end users. Paying mind to what’s on the outside can help sell a lot of what’s inside. Read More
Organic potato grower staring at his crops
Crop Protection
March 20, 2017
Biologicals Gaining Acceptance Among More Growers
Driven by new innovation and consumer demand, growers look to the biocontrol sector for new solutions. Read More
Alternaria leaf and pod spot of snap bean
Disease Control
March 17, 2017
Prevent Alternaria from Putting Your Snap Beans on the Spot
Learn how to identify, the survival and spread, as well as management methods for this vegetable disease. Read More
Cranes at the Port Tampa Bay
Farm Management
March 17, 2017
Unfair Trade Taking Its Toll on Florida Farmers
Local grower community hopeful over President Trump’s announced intention to renegotiate NAFTA. Read More
Swadesh Santra of UCF
Citrus
March 16, 2017
UCF Stepping up to Be Farming’s Knight in Shining Armor
Hopes are high that the school's new agriculture research center will help growers solve production issues and feed the globe. Read More
A.H. Whitmore Farm in Leesburg, FL, as seen from Google Earth
Varieties & Rootstocks
March 16, 2017
Experimental Citrus Groves Disappearing in Florida
Challenges to growth expand as vital research is in dire need of a home. Read More
Frozen blueberries
Berries
March 15, 2017
Arctic Blast Gives Southern Fruit Growers the Chills
Peaches and berries in bloom most at risk from freezing temperatures. Read More
GenNext Growers
March 15, 2017
Introducing Technology, Farm Transitions among Topics at IFTA Young Grower Reception
Event brought together the next generation of tree fruit growers and young professionals in the industry. Read More
The Latest
Pest Control
March 22, 2017
Fear of GMOs is Impacting Quality Food R…
Perhaps the greatest threat to our industry is a public that values instinctual opinion over careful research and the findings of experts who have dedicated years to their field of study. Read More
Business Planning
March 22, 2017
How HortTech Is Solving Grower Challenge…
Dozens of tech companies are looking for solutions to real-world problems vegetable growers face. We take a look at what it could really mean for you and your business. Read More
Production
March 22, 2017
Weighing the Good and Bad of Six Soilles…
Trying to decide which growing media is the right one for your greenhouse vegetable production? Take a look at these six options. Read More
Citrus
March 21, 2017
Industry Groups, Ag Leaders React to Pro…
New plan would slash USDA spending by 21%. Read More
Cold Protection
March 21, 2017
Freezing Temperatures Hit South Carolina…
Peaches, blueberries, and strawberries among crops damaged. Read More
Citrus
March 21, 2017
Since When Did Eating Get So Complicated…
The bottom line to all this is the way we eat is undergoing massive disruption. Read More
Apples & Pears
March 21, 2017
Two More Lost Apple Varieties Found In S…
Amateur apple detective strikes again with two more finds in abandoned orchards near state park. Read More
GenNext Growers
March 20, 2017
Packaging: A Powerful Way for Farmers to…
Growers have few opportunities to communicate with end users. Paying mind to what’s on the outside can help sell a lot of what’s inside. Read More
Crop Protection
March 20, 2017
Biologicals Gaining Acceptance Among Mor…
Driven by new innovation and consumer demand, growers look to the biocontrol sector for new solutions. Read More
Disease Control
March 17, 2017
Prevent Alternaria from Putting Your Sna…
Learn how to identify, the survival and spread, as well as management methods for this vegetable disease. Read More
Farm Management
March 17, 2017
Unfair Trade Taking Its Toll on Florida …
Local grower community hopeful over President Trump’s announced intention to renegotiate NAFTA. Read More
Citrus
March 16, 2017
UCF Stepping up to Be Farming’s Kn…
Hopes are high that the school's new agriculture research center will help growers solve production issues and feed the globe. Read More
Varieties & Rootstocks
March 16, 2017
Experimental Citrus Groves Disappearing …
Challenges to growth expand as vital research is in dire need of a home. Read More
Berries
March 15, 2017
Arctic Blast Gives Southern Fruit Grower…
Peaches and berries in bloom most at risk from freezing temperatures. Read More
GenNext Growers
March 15, 2017
Introducing Technology, Farm Transitions…
Event brought together the next generation of tree fruit growers and young professionals in the industry. Read More
Citrus
March 15, 2017
Group Wants To Streamline Food Safety Re…
There are 15 federal agencies implement more than 30 different food safety statutes. A team of experts believe they have a solution. Read More
Marketing
March 15, 2017
Florida Peaches Scoring Points with Cons…
Snack-sized fruit presents unique marketing opportunity for growers. Read More
Nuts
March 15, 2017
Efforts to Thwart Nut Thefts Ramping up …
Ordinance revisions to end cash sales, include a 10-day hold on payments. Read More