New HLB Research Lab Opening For Citrus

Citrus industry, UC Riverside Celebrate Opening of New Research Lab 

 By Alyssa Houtby, CA Citrus Mutual Director of Government Relations
Recently, leaders from the California citrus industry and the University of California, Riverside gathered to celebrate the grand opening of a Biosafety Level-3 Lab that will be used by researchers to identify a cure for the devastating citrus plant disease Huanglongbing, or HLB.
The state-of-the-art lab is the product of a partnership between the State’s citrus growers and UC Riverside aimed to protect California citrus trees from the deadly citrus plant disease Huanglongbing, or HLB.
“HLB is the single greatest threat to the future of the California citrus industry,” says CCRF Board Chairman and General Manager Booth Ranches LLC, Dave Smith. “The Biosafety Level-3 Lab is a testament to the industry’s proactive and optimistic spirit. In a matter of months, the citrus industry raised over $8 million to fund the construction of this facility and now, together with our partners at UC Riverside, we are one step closer to finding a cure for HLB.”

Located just 2-miles off campus on Marlborough Avenue, the lab will allow researchers to conduct work with plant pathogens that previously couldn’t be done in Southern California.

ACP UC IPM

ACP (Source: ACP UC IPM)

Construction of the $8 million lab began in 2016 and was entirely funded by the California Citrus Research Foundation through donations by citrus growers and packers.
The grand opening was marked by a ribbon-cutting ceremony and Citrus Industry Appreciation Luncheon at which several university, government, and citrus industry leaders spoke about the significance of the lab to the future of the California citrus industry.
The disease, spread by an invasive insect called Asian citrus psyllid, has been detected in over 1,500 backyard citrus trees in Los Angeles, Orange, and Riverside Counties. Citrus growers are proactively working to keep the disease out of commercial citrus groves until research finds a cure.
Casey Creamer, President of the non-profit grower advocacy group, California Citrus Mutual outlined the scope of the challenge and the extensive effort by citrus growers, federal, state, and local governments, and homeowners to protect all citrus trees.
“California is the largest citrus-producing region in the world that has not been ravaged by HLB. For over a decade, growers have worked proactively to protect the state’s $3.3 billion citrus industry and the millions of citrus trees in backyards. The construction of this lab and the partnership with UC Riverside is a significant milestone in the fight to save California citrus,” said Creamer.
Also represented at the event was the industry-funded Citrus Research Board (CRB). “The industry has invested millions of dollars over the past 10 years into research on Asian citrus psyllid and HLB,” said CRB Chairman Dan Dreyer. “However, research is useless without partners. I’m confident that the partnership between the Citrus Research Foundation, UC Riverside, California Citrus Mutual, and the Citrus Research Board will deliver actual solutions to the industry’s greatest challenge.”
UC Riverside has a long history of collaboration with the citrus industry and is home to the Citrus Variety Collection, the Citrus Clonal Protection Program, and the Citrus Experiment Station which was founded in 1907. 
“We are proud to continue the tradition of collaboration and partnership with the citrus industry as we work together to find solutions to HLB,” said UCR Chancellor Kim Wilcox. “Citrus is an iconic part of California’s history, and the Biosafety Level-3 Lab is a natural extension of the mission of UC Riverside to enrich the state’s economic, social, cultural, and environmental future.”
 
The event was emceed by the Citrus Research Foundation Executive Director Joel Nelsen who praised the industry for its foresight and investment in research. “For over 10 years, citrus growers have partnered with government, homeowners, and the University to prevent HLB from taking hold. The construction of the Biosafety Level-3 Lab and our partnership with UC Riverside is an investment in the future of California citrus. I’m confident now more than ever that our future is bright.”
The collaboration between citrus growers and UCR drew praise by a number of local elected officials as well as State and Federal representatives in attendance.
“Not only does this lab pay homage to Riverside’s rich history in citrus cultivation and research dating back to the establishment of the Citrus Experiment Station in 1907, it builds upon that history to push us to the forefront of research critical to the survival and success of citrus cultivation in the state and nation,” stated Senator Richard D. Roth. “Thank you to UC Riverside, the California Citrus Research Foundation, and others in the industry for your partnership in this critical investment!”
Congressman Ken Calvert, unable to attend the event in person, said in a prepared statement, “The threat Huanglongbing poses to California’s commercial citrus industry cannot be overstated. The opening of the Biosafety Level-3 Laboratory for Huanglongbing Research at UC Riverside is welcome news and a critical step towards protecting our citrus from this devastating disease. All of our citrus stakeholders, including the federal government, must continue to provide the research resources necessary to end this existential threat.”
Four researchers have been approved to begin work in the Biosafety Level-3 Lab. The Citrus Research Foundation and UC Riverside will oversee the current projects as well as the selection of future projects.
2021-05-12T11:05:01-07:00October 3rd, 2019|

Produce Passes All Residue Testing in 2017

FDA Produce Residue Sampling “Once Again” Verifies Safety

Last week the Federal Food and Drug Administration (FDA) released its 2017 pesticide residue sampling data results. FDA concluded: “The latest set of results demonstrate once again that the majority of the foods we test are well below the federal limits set by the Environmental Protection Agency.”

Note the term “once again” in FDA’s statement. They used it because government residue sampling data year after year reaffirms the safety of our food and the exceptionally high level of compliance among farmers with laws and regulations covering the use of organic and conventional pesticides.

Let’s get a little technical for a moment and focus on how FDA residue sampling is protective of consumers. FDA employs a three-fold strategy to enforce the Environmental Protection Agency’s (EPA) tolerances or safety standards for pesticide residues.
If you haven’t heard – September is National Fruit and Vegetable month. Yes, it is time to celebrate the only food group health experts and nutritionists agree we should all eat more of every day for better health and a longer life.
While decades of studies have shown the nutritional benefits of fruits and vegetables are overwhelming and significant, the safety of both organic and conventional produce is also impressive. Government sampling data shows an over 99% compliance rate among farmers with the laws and regulations required for pesticide applications on organic and conventional fruit and vegetable crops. This led the United States Department of Agriculture to state that: “The U.S. food supply is among the safest in the world.”

Many health organizations are promoting National Fruit and Vegetable month to remind consumers about the importance of increasing consumption – only one in 10 of us eat enough of these nutrient-packed foods each day.

However, studies show a growing barrier to consumption is fear-based messaging which inaccurately calls into question the safety of the more affordable and accessible fruits and veggies. This messaging is predominantly carried by the same activist groups year after year despite studies which show that “prescriptions” for fruits and veggies could reduce health care costs by $40 billion annually. Or that 20,000 cancer cases could be prevented each year.

2019-09-23T15:06:22-07:00September 23rd, 2019|

Marcy Martin To Head Citrus Research Board

Martin Selected Following Year Long National Search

 Marcy L. Martin was named today as the new president of the Citrus Research Board (CRB). The appointment was announced by CRB Chairman Dan Dreyer, who said that Martin was selected after a nearly year-long national search for the very best candidate to lead the organization.

Martin joins the CRB with more than 25 years of experience with California commodity organizations. She most recently served for 14 years as director of trade for the California Fresh Fruit Association (CFFA), where she advocated on behalf of the state’s fresh grape, blueberry, pomegranate and deciduous tree fruit production in governmental, legislative and policy issues. Prior to that, she had been controller of the California Apple Commission for ten years.

In 2015, then U.S. Department of Agriculture (USDA) Secretary of Agriculture Tom Vilsack appointed Martin to the Agricultural Technical Advisory Committee (ATAC) for Trade in Fruits and Vegetables. In his announcement, Vilsack said of those who were appointed, “They are an invaluable asset as we work to enact trade agreements and trade policies that deliver the greatest economic benefit for U.S. agriculture and for our nation as a whole.”

“California’s citrus growers, packers and shippers have demonstrated through their keen understanding that an industry must invest in sound research to meet the challenges of a constantly evolving environment, marketplace and consumer,” said Martin. “The Citrus Research Board, industry, staff and research community have stepped up to take on looming challenges, specifically huanglongbing, that have devastated citrus production within other regions, both domestically and globally. This is an area I am passionate about, and I look forward to bringing my experience in the technical and regulatory arena to the team.”

Dreyer said, “The Board is pleased to have Marcy Martin taking the helm of CRB. Her extensive experience with commodity organizations and local, state and federal regulatory agencies will be a key ingredient to the success of CRB projects and priorities. She comes to the CRB with extensive knowledge of fresh tree fruit production and the agricultural use of plant protection products. Our Board members were impressed by her dedication to and passion for agriculture.”

“The California citrus industry is an important economic contributor and an icon of the Golden State,” Martin said. “Citrus is part of our American and Californian agricultural footprint – a commodity we need to preserve and foster. I’m honored to be part of this continuing tradition.”

Martin officially will join the CRB on October 1 and will be based out of the CRB headquarters in Visalia, California. She will take the reins from Interim President Franco Bernardi.

“We cannot thank Franco enough for his dedicated service to the CRB throughout the past year,” said Dreyer. “He did an excellent job in guiding the organization through a challenging period, and the Board has been truly grateful for his leadership.”

2019-09-10T14:14:08-07:00September 10th, 2019|

2017 Tulare County Crop Report Tops $7 Billion

Tulare Crop Report Shows 10 Percent Growth in Single Year

By Patrick Cavanaugh, Editor

Big numbers announced today from Tulare County Ag Commissioner Marilyn Wright on the 2017 crop year.

“Our value is 10.5 percent up from last year, at 7,039,929,000. So, that’s 669 million more than the previous year,” Wright said.

Marilyn Kinoshita, Tulare County Ag Commissioner

Marilyn Wright, Tulare County Ag Commissioner

And, of course, more water in the system probably helped, as it did in Fresno County, which announced $7.028 billion in its 2017 Crop Report, released earlier this month.

The dairy industry, which is prominent in Tulare County, came in number one again, representing 25 percent of the total value.

“Milk prices were stronger in early 2017, but they went down later in the year. And they continue to go down, but still it was a big part of the Tulare County ag receipts in 2017,” Wright said.

Following dairy were grape products—including juice grapes, raisins, and table grapes. Table grapes had a stellar year.

Navel and Valencia oranges were next. Cattle and calves ranked fourth, down from category number three in 2016, because cattle prices were off last year.

Tangerines, also known as mandarins, were number five, followed by almonds, cling peaches, and freestone peaches.

Lemons, were ninth on the crop list.

We only have just over 10,000 acres of lemons in the County, Wright said.

Wright said the value of this year’s crop report, $7.39 billion, is the third highest value Tulare County has ever reported.

2018-09-18T16:39:21-07:00September 18th, 2018|

2017 Fresno County Crop Report Totals $7 Billion

Fresno County’s Ag Value Increases Significantly in 2017 Crop and Livestock Report

 

The Fresno County Department of Agriculture’s 2017 Crop and Livestock Report (Crop Report) was presented to the Fresno County Board of Supervisors Tuesday. Overall, the 2017 agricultural production value in Fresno County totaled $7.028 billion, showing a 13.58 percent increase from 2016’s $6.18 billion.

“Once again, Fresno County farmers and ranchers have produced an agricultural bounty for the world,” stated Fresno County Agricultural Commissioner Les Wright. “While much of this food and fiber goes towards feeding and supplying our nation, the Fresno County Department of Agriculture also issued 18,604 phytosanitary certificates for 133 commodities destined for 97 countries around the globe in 2017.”

“This Crop Report is comprised of nearly 400 commodities, of which 73 crops exceed $1 million in value,” Commissioner Wright continued. “Crop values may vary year-to-year based on production, markets and weather conditions, but our farmers and ranchers, their employees and all those who support their efforts work tirelessly year-around to bring in the harvest.”

With the great diversity of crops in Fresno County and the many variables in agriculture, it’s a given that some crops will be up in value while others are down. Increases were seen in a majority of the Crop Report segments, including field crops, seed crops, fruit and nut crops, livestock and poultry, livestock and poultry products, apiary products and pollination services, and industrial crops. Decreases were seen in vegetables and nursery. Surface water supplies were significantly better in 2017, although many Westside federal water contractors received much of that good news too late to benefit them with additional annual plantings.

Fresno County’s Top 10 Crops in 2017 (Source: 2017 Fresno County Agricultural Crop and Livestock Report)

Too often, the Crop Report gets summarized down to just a single overall number, but it yields a significant amount of information, such as the ability to examine changes and trends in crop acreage and yields. Amounts in the report reflect the gross income values only (income before expenses) and not the net return to producers.

“The San Joaquin Valley is the food capital of the World, and Fresno County is the region’s heart,” said Fresno County Farm Bureau (FCFB) CEO Ryan Jacobsen. “Daily, millions of food servings unceremoniously originate within our backyard, the result of generations of families and agricultural infrastructure that has been built to furnish an unbelievably productive, wholesome and affordable food supply.”

“The annual Crop Reports are more than numbers,” Jacobsen continued. “They provide the industry, the public and policymakers, regardless of the overall number, the opportunity to salute local agriculture and give thanks for the food and fiber, jobs and economic benefits, agriculture provides Fresno County.”

One popular component of the report is the review of the county’s “Top 10 Crops” that offers a quick glimpse of the diversity of products grown here. In 2017, these crops accounted for three-fourths of the report’s value. Almonds continue to lead the way as Fresno County’s only billion-dollar crop in 2017, representing 17.4 percent of the total gross value of the Crop Report. Added to this year’s list was mandarins at number six. Dropping out of the “Top 10 Crops” was garlic.

This year’s Crop Report was a salute to the Fresno-Kings Cattlemen’s Association. The organization is one of 38 affiliates of the California Cattlemen’s Association, a non-profit trade association that represents ranchers and beef producers in legislative and regulatory affairs.

2021-05-12T11:17:09-07:00August 21st, 2018|

New Study Reveals Economic Impact of California Citrus

Citrus Research Board Quantifies California Citrus Industry’s Importance

Edited by Patrick Cavanaugh
      Despite Tulare Mayor Carlton Jones posting a series of anti-ag comments on Facebook, causing a stir in the local community, agriculture provides a huge economic stimulus to his community. In fact, without agriculture in Tulare, the city would most likely be in economic ruin.
     Citrus is one crop that is grown in the county. And the total economic impact of the iconic California citrus industry is $7.117 billion according to a new study commissioned by the Citrus Research Board (CRB).
     “In updating our economic analysis, we selected a well-known expert, Bruce Babcock, Ph.D., a professor in the School of Public Policy at the University of California, Riverside, to conduct the research. His findings quantified the significant impact of citrus on California’s economic well-being,” CRB President Gary Schulz said.
     According to Babcock, the California citrus industry added $1.695 billion to the state’s Gross Domestic Product (GDP) in 2016.
     “California citrus is a major contributor to the economic value of the state’s agricultural sector and is much larger than just the value of its sales,” he said. “Estimated full-time equivalent California citrus jobs totaled 21,674 in 2016-17, and estimated wages paid by the industry during that same time frame totaled $452 million.”
     Babcock added, “The application of management skills and capital equipment to efficiently utilize land and water to produce high-quality citrus also generates upstream and downstream jobs and income that magnify the importance of citrus production beyond its farm value.”
     In 2016-17, the most recent marketing year of data compilation, Babcock found that the total direct value of California citrus production was $3.389 billion. This value generated an additional $1.263 billion in economic activity from related businesses that supplied materials and services to the citrus industry. Layered on top was another $2.464 billion in economic activity generated by household spending income that they received from California’s industry, according to Babcock, thus rendering a total economic impact of $7.117 billion.
     The study revealed that 79 percent of California’s citrus was packed for the fresh market and 21 percent was processed in 2016-17, which is economically significant because fresh market fruit has a higher value than processed fruit.
     Of further note, California produced about 95 percent of all U.S. mandarins in the most recent reporting season.
     California Citrus Mutual President Joel Nelsen said, “The ‘wow’ factor in this report is something, as it relates to gross revenues and positive impact for the state, people and local communities. This enthusiasm must be tempered by the fact that huanglongbing (HLB) can destroy all this in a matter of a year if the partnerships that exist between the industry and government cannot thwart the spread of this insidious disease. Just this week, coincidentally, Brazil authorities reported a 20% reduction in fruit volume. Reading how that would affect our family farmers, employees and the state is sobering.”
     The CRB study also looked at the possible impact of a potential 20 percent reduction in California citrus acreage or yield or a combination of the two that could result from increased costs associated with meeting government regulations, combatting the Asian citrus psyllid (ACP) and warding off the invasion of HLB, a devastating disease that has decimated citrus production in many other growing regions such as Florida. Babcock calculated that such a reduction could cause a loss of 7,350 jobs and $127 million in associated employment income and could reduce California’s GDP by $501 million in direct, indirect and induced impacts. The CRB currently is devoting most of its resources to battling ACP and HLB to help ensure the sustainability of California citrus.
     Babcock is a Fellow of the Agricultural and Applied Economics Association and has won numerous awards for his applied policy research. The economist received his Ph.D. in Agricultural and Resource Economics from the University of California, Berkeley, and his Masters and Bachelors degrees from the University of California, Davis.
     The CRB administers the California Citrus Research Program, the grower-funded and grower-directed program established in 1968 under the California Marketing Act as the mechanism enabling the State’s citrus producers to sponsor and support needed research. More information about the Citrus Research Board and the full report on the “Economic Impact of California’s Citrus Industry” may be found at www.citrusresearch.org. 
2021-05-12T11:05:12-07:00May 21st, 2018|

Nov 9 Annual Ag Awards Luncheon Honors Manuel Cunha, Booth Ranches

Manuel Cunha, Agriculturist of the Year

By Laurie Greene, Editor

 

On Wednesday afternoon, November 9, the Who’s Who of Agriculture will gather at the long-standing celebratory Annual Ag Awards Luncheon in Valdez Hall at the Fresno Convention Center to commemorate the achievements of an individual and a company in the County’s agricultural industry.

 

Fresno Chamber of Commerce logoNathan Ahle, president and CEO of the Fresno Chamber of Commerce, said, “We are very excited about this. This is the 33rd time the Fresno Chamber has presented the Agriculturist of the Year Award, and the 21st time the Fresno-based CPA firm Baker, Peterson and Franklin has presented the Ag Business of the Year Award. We recognize that Ag is really the life-blood of our economy. This event is an honor to do and something we take great pride in.”

 

This year’s Agriculturist of the Year Award recipient is Manuel Cunha, president of the Fresno-based Nisei Farmers League. “Everybody knows Manuel Cunha—a legend in Valley Ag as president of the Nisei Farmers League for two decades,” Ahle said. “ This gentleman is a force to be recognized with when it comes to fighting for our farmers, fighting for water, fighting for anything and everything that has to do with agriculture in the Central Valley.”

2016 Fresno Chamber of Commerce Agriculturist of the Year recipient, Manuel Cunha, president, Nisei Farmers League.

2016 Fresno Chamber of Commerce Agriculturist of the Year recipient, Manuel Cunha, president, Nisei Farmers League.

 

Nisei Farmers League, established in 1971, informs grower members about ever-changing regulations and policies and provides legal assistance for labor and workplace-related issues. The league’s leadership and staff maintain a close working relationship with local, state and federal agencies and legislators to assure grower interests are adequately understood and defended.

 

The League also collaborates with other grower and agricultural organizations in California and other states to help provide a powerful and unified voice for the agricultural community.  The Nisei Farmers League is all about strength, clear focus and growers looking out for growers and farmworkers.

 

This year’s Ag Business Award recipient, Booth Ranches, is a premium San Joaquin Valley citrus grower. Otis Booth, Jr. founded Booth Ranches in 1957 on 40 acres by the foothills of the Sierra Nevada Range near Orange Cove.

booth ranches logo

 

Today, Booth Ranches is still family owned and operated on acreage from Orange Cove in the Northern San Joaquin Valley to Maricopa in Kern County to the South. Pasadena-born, fifth-generation farmer Loren Booth currently manages Booth Ranches which boasts premium Navel oranges, Valencia oranges, Cara-Caras, Minneolas and W. Murcott Mandarins that are distributed worldwide.

 

The selection panel went through a tough selection process, according to Ahle. “Those who have been in the Valley longer than I have tell me this is the strongest group of candidates for the award that we have ever had. I think it just speaks to the great passion that we have for Ag in this community, and Manuel Cunha and the team at Booth Ranches are great, great recipients.”

2016-11-10T10:50:56-08:00November 7th, 2016|

Fresno County Agricultural Value Declines in 2015

Fresno County Agricultural Value Declines in 2015

Drought, Lower Commodity Prices and Production Issues Drive Report Down

The Fresno County Department of Agriculture’s 2015 Crop and Livestock Report was presented to the Fresno County Board of Supervisors TODAY.  Overall, agricultural production in Fresno County totaled $6.61 billion, showing a 6.55 percent decrease from 2014’s $7.04 billion.

“The strength of Fresno County’s agricultural industry is based upon the diversity of crops produced.  This year’s report covers nearly 400 commodities, of which, 62 exceed $1 million in value,” said Fresno County Agricultural Commissioner/Sealer of Weights and Measures Les Wright“The lack of a reliable water supply continues to fallow productive land,” Wright continued.

Les Wright Fresno County Ag Commissioner

Les Wright, Fresno County Ag Commissioner

The annual crop report provides a chance to examine changes and trends in crop acreage and yields.  Amounts in the report reflect the gross income values only (income before expenses) and does not reflect net return to producers.

According to the released figures, an increase was seen in vegetable crops (4.95% = $59,025,000). Decreases occurred in field crops (41.99% = $134,995,000), seed crops (30.80% = $10,437,000), fruit and nut crops (6.6% = $229,551,000), nursery products (25.65% = $16,088,000), livestock and poultry (9.44% = $118,769,000), livestock and poultry products (31.38% = $199,769,000), apiary (2.39% = $1,735,000) and industrial crops (54.38% = $3,992,000). 

“Every day, millions throughout the world are eating food that originated in Fresno County,” said FCFB CEO Ryan Jacobsen. “The magnitude of this industry does not occur by happenstance. Generation upon generation of agricultural infrastructure has been built to feed an unbelievably productive, wholesome and affordable food supply.

Ryan Jacobsen

Ryan Jacobsen, CEO Fresno County Farm Bureau

“I continue to remind all—eaters; elected officials; local residents who benefit from a healthy, vibrant farm economy; and those whose jobs depend upon agriculture—that we must not take what we have for granted,” continued Jacobsen.  “By not addressing our challenges head-on, whether it be water supply reductions, labor issues, governmental red-tape, etc., we are allowing our economy, our food and our people to wilt away. The direction of the Valley’s agricultural industry explicitly determines the direction of the Valley as a whole.”

One popular component of the report is review of the county’s “Top 10 Crops,” which offers a quick glimpse of the diversity of products grown here. In 2015, these crops accounted for three-fourths of the report’s value.  Added to this year’s list were mandarins (9) and oranges (10).  Mandarin demand continues to push acreage upwards.  Dropping out of the Top 10 was pistachios and cotton.  Pistachio production was significantly reduced last year due to the “blanking” issue that left many shells without nuts, and cotton acreage continues to be depressed due to reduced water supplies and fallowed land.

For a copy of the full crop report, contact FCFB at 559-237-0263 or info@fcfb.org. 
Fresno County Crops 2015
Fresno County Farm Bureau is the county’s largest agricultural advocacy and educational organization, representing members on water, labor, air quality, land use, and major agricultural related issues. Fresno County produces more than 400 commercial crops annually, totaling $6.61 billion in gross production value in 2015.  For Fresno County agricultural information, visit www.fcfb.org.
2021-05-12T11:05:49-07:00August 9th, 2016|

Breaking News: Cal Poly Opens New Greenhouse and Insect Rearing Facility

New Greenhouse Facility Opens to Save Citrus from Psyllids that Vector HLB

Facility to Rear Tamarixia Radiata, Natural ACP Predator

By Patrick Cavanaugh, Farm News Director

 

Scores of citrus industry leaders, citrus growers, scientists and CDFA officials attended the ribbon cutting event TODAY at the opening of a new greenhouse on the Cal Poly Pomona campus to rear Tamarixia radiata, a tiny parasitic wasp imported from Pakistan because it is an Asian Citrus Psyllid (ACP) nymph predator. ACP, in turn, is a serious nonnative citrus pest that can vector Huanglongbing (HLB)—a deadly citrus disease also known as Citrus Greening—that has devastated the powerhouse citrus Screenshot 2016-07-25 12.24.41.png

industry in Florida, threatens to ruin additional citrus economies, and is the biggest threat the California citrus industry has ever faced.

According to the United States Department of Agriculture Animal and Plant Health Inspection Service (USDA-APHIS), infected citrus trees “produce fruits that are green, misshapen and bitter, unsuitable for sale as fresh fruit or for juice. Most infected trees die within a few years.” ACPs have been detected in Alabama, American Samoa, Arizona, California, Florida, Georgia, Guam, Hawaii, Louisiana, Mississippi, Northern Mariana Islands, Puerto Rico, South Carolina, Texas and the U.S. Virgin Islands. Of those locations, the HLB disease has been detected in California, Florida, Georgia, Louisiana, Puerto Rico, South Carolina, Texas and the U.S. Virgin Islands.

ENTER:  Tamarixia radiata

Use of the ACP predator, Tamarixia radiata as a biological control for ACP was discovered by Mark Hoddle, biological control specialist and principal investigator, UC Riverside ( UCR), Department of Entomology. The first release of Tamarixia was in December 2011 after USDA-APHIS cleared the natural enemy for release from the Quarantine Facility at UCR.

Mark Hoddle UC Riverside Department of Entomology

Mark Hoddle UC Riverside Department of Entomology

“Tamarixia can kill ACP nymphs in two different ways,” explained Nick Hill, a Tulare County citrus producer and Citrus Pest & Disease Prevention Program (CPDPC) chair.  “The first is parasitism. In this instance, a female parasitoid lays an egg underneath a fourth or fifth instar—the larger and final developmental stage of the ACP nymph before becoming an adult—nymphs that are most preferred by Tamarixia for parasitism. When the egg hatches, the Tamarixia larva begins to feed on the under-surface of the ACP nymph. Eventually the larva completely excavates the body cavity of the ACP nymph and pupates inside the empty shell of its host.”

Hill explained the first releases of the tiny and harmless wasp will occur this fall in urban areas, “to help control ACP so that we do not have to do mitigations such as spraying in those areas. We hope to get to a point where we no longer need to go into people’s yards and ask if we can treat the trees.”

“The issue,” commented Valerie Melano, professor and chair, Cal Poly Pomona Plant Sciences and interim chair, Cal Poly Agribusiness & Food Industry Management/Agricultural Science, “is that we need to come up with the best possible ways to raise enough wasps for big releases to prey on ACP. We will have CDFA employees working in this green house, as well as student workers who have participated in our research program all along,” noted Melano.

Nick Hill, CPDPC chair

Nick Hill, a Tulare County citrus producer and Citrus Pest & Disease Prevention Program (CPDPC) chair.

Hill added, “The idea is to get enough Tamarixia out there so they start reproducing themselves and they become self sufficient. This is tough to accomplish, but researchers think if they can get big numbers of the wasp into the urban areas, they can put a big dent in lowering the populations of ACP.”

Cal Poly Pomona Greenhouse

The new Cal Poly 5,040-square-foot research greenhouse, built in collaboration with Citrus Research Board and constructed through a $400,000 grant from the Citrus Pest & Disease Prevention Program, will house the second Tamarixia production program in California. CDFA’s Mount Roubideaux facility in Riverside houses current production. Both facilities will support the CPDPC biological control program that oversees releases in urban areas with high ACP populations.

The new greenhouse should produce a 1-ACP Research Greenhouse1.5 million wasps. “It’s a very nice facility,” said Hill. “We are trying to boost the biological control program to produce four million Tamarixia a year.”

California Quarantine

The California Department of Food and Agriculture (CDFA) operates an extensive monitoring program to track the distribution of the insect and disease in both residential areas and commercial citrus groves. Results have determined quarantine zones, guided releases of biological control agents, and prioritized areas for a residential chemical control program. Nearly all of southern California is under quarantine for ACP, due to the fact that more than 15 residential trees have been discovered to be in infected with HLB.

The ACP quarantine in California includes parts of the following counties:  Fresno, Kern, Kings, Madera, Monterey, San Benito, San Joaquin, San Luis Obispo, San Mateo, Santa Clara, and Stanislaus; and the following entire counties: Imperial, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, Tulare County, and Ventura.

Asian Citrus Psyllid Cooperative Program California, Arizona, Baja California, and Sonora (USDA-APHIS)

Asian Citrus Psyllid Cooperative Program
California, Arizona, Baja California, and Sonora (USDA-APHIS). Visit our Citrus Diseases page to identify a plant infected by citrus greening, citrus canker, citrus black spot and sweet orange scab. If you detect an infected plant, report it  immediately.

2021-05-12T11:05:51-07:00July 25th, 2016|

BREAKING NEWS: ACP QUARANTINES IN MERCED AND MONTEREY COUNTIES

ASIAN CITRUS PSYLLID (ACP) QUARANTINES IN MERCED AND MONTEREY COUNTIES

Quarantines are now in place in both Merced and Monterey Counties due to recent Asian citrus psyllid (ACP) detections.  One ACP was detected near the City of Merced in Merced County and two ACP in one trap within the City of Salinas in Monterey County.

The quarantine zone in Merced County measures 123 square miles, bordered on the north by Kenney Avenue; on the south by W Dickenson Ferry Road; on the west by Shaffer Road; and on the east by

SaveOurCitrus

SAVE OUR CITRUS app is a free USDA iPhone to report and identify the four leading citrus diseases: citrus greening, citrus canker, citrus black spot and sweet orange scab. Report your symptoms, upload a photo and citrus experts will respond. ACP

E Yosemite Avenue. Monterey County’s quarantine measures 111 square miles and is bordered on the north by Pesante Road; on the south by the Salinas River; on the west by Castroville Road; and on the east by Gabilan Creek. The quarantine maps for both Merced and Monterey Counties are available online at: www.cdfa.ca.gov/go/acp-maps. Please check this link for future quarantine expansions in these counties, should they occur. Quarantines in new counties will be announced separately.

The quarantine prohibits the movement of citrus and curry leaf tree nursery stock, including all plant parts except fruit, out of the quarantine area and requires that all citrus fruit be cleaned of leaves and stems prior to moving out of the quarantine area.  An exception may be made for nursery stock and budwood grown in USDA-approved structures which are designed to keep ACP and other insects out.  Residents with backyard citrus trees in the quarantine area are asked not to transport or send citrus fruit or leaves, potted citrus trees, or curry leaves from the quarantine area.

ACP county-wide quarantines are now in place in Imperial, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, Tulare and Ventura Counties, with portions of Alameda, Fresno, Kern, Kings, Madera, Merced, Monterey, San Benito, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Clara, and Stanislaus counties also under quarantine.

The ACP is an invasive species of grave concern because it can carry the disease huanglongbing (HLB), also known as citrus greening.  All citrus and closely related species, such as curry leaf trees, are susceptible hosts for both the insect and disease.  There is no cure for HLB and once a tree becomes infected, the diseased tree will decline in health and produce bitter, misshaped fruit until it dies.  In California, HLB has only been detected on residential properties in Los Angeles County.  This plant disease does not affect human health.
Residents in the area who think they may have seen ACP or symptoms of HLB on their trees are urged to call CDFA’s Pest Hotline at 1-800-491-1899 or your local agricultural commissioner’s office (Merced County (209) 385-7431; Monterey County (831) 759-7325).  For more information on the ACP and HLB, please visit: www.cdfa.ca.gov/go/acp.

2021-05-12T11:05:52-07:00July 14th, 2016|
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