By Ariel Singerman Harvesting citrus is manual and labor intensive, making the cost of labor a key component of the cost of harvesting. The H-2A guest worker program allows companies to temporarily hire non-U.S. citizens to perform agricultural labor or services of seasonal nature. Given that domestic workers for harvesting are in short supply, harvesting companies in Florida (and other …
Highlights From Citrus Packinghouse Day Presentations
Trunk injection for HLB, diplodia stem-end rot (diplodia SER) and citrus under protective screen (CUPS) were among topics addressed at the recent Citrus Packinghouse Day. The event took place at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC). TRUNK INJECTION FOR HLBTrunk injection of oxytetracycline (OTC) increases tree health, fruit quality …
FFVA Endorses Aldicarb Registration
The Florida Fruit & Vegetable Association (FFVA) submitted comments to the U.S. Environmental Protection Agency (EPA) in support of the proposed federal registration of aldicarb on Florida oranges and grapefruit. “Prior to the business-strategy decision by the previous registrant to voluntarily remove aldicarb from the market in 2010, this insecticide was considered a cornerstone of immediate and long-term sustainable production …
Diaprepes Root Weevil Update for Florida
Florida’s populations of Diaprepes abbreviatus root weevil have been uncharacteristically low so far in 2023, entomologist Lauren Diepenbrock reported recently. The adult pests are normally active in April–May and in the fall, the University of Florida Institute of Food and Agricultural Sciences assistant professor noted. Prior to the discovery of HLB disease in Florida in 2005, growers who had extensive …
Replacing Psyllid Host Plants
The secretary of agriculture and supply of the state of São Paulo, Brazil, in partnership with Fundecitrus, has launched a campaign to replace plants that are hosts for the HLB-spreading psyllid. HLB disease is also known as citrus greening. The campaign, called Plant This Idea, aims to replace citrus and myrtle plants with fruitful and ornamental plants in rural backyards …
Sneak Peek: September 2023 Citrus Industry
The Florida citrus industry has seen more than its fair share of challenges and changes in recent years. But through it all, Brite Leaf Citrus Nursery has been a constant positive presence. This is due to strong leadership from Nate and Anna Jameson and their ability to adapt to changing times. The Florida Department of Agriculture and Consumer Services recently …
USDA Funds Three Georgia Citrus Projects
The U.S. Department of Agriculture Agricultural Marketing Service (USDA AMS) funded three citrus projects in Georgia for fiscal year 2023. SATSUMA EDUCATIONThe Georgia Department of Agriculture (GDA) received $103,225 for a satsuma education project. GDA will partner with local farmers and produce distributors to increase the availability of Georgia-grown satsuma mandarins in retail locations. The project will work closely with …
Student’s Thiamethoxam Research Honored
Work on HLB carried out at Fundecitrus by student Leandro Jun Soki Shibutani was honored at the recent Brazilian Congress of Phytopathology. The first part of Shibutani’s dissertation on the theme “Frequency of spraying thiamethoxam and transmission of Candidatus Liberibacter asiaticus in orange trees under constant arrival of infective psyllids” took second place in the Best Master’s Works category. It …
California and Arizona Citrus Projects Funded
The California and Arizona departments of agriculture received funding for four citrus-related projects from the U.S. Department of Agriculture’s (USDA) Agricultural Marketing Service (AMS) for 2023. Nationwide, USDA AMS allocated $72.9 million in Specialty Crop Block Grant Program funding. DROUGHT-TOLERANT VARIETIESThe California Department of Food and Agriculture (CDFA) received $499,921 for designing drought-tolerant specialty crops using metabolic modeling. The University …
All In For Citrus Podcast, August 2023
With the trunk-injection season winding down in Florida groves, growers anxiously await to see positive results in HLB-infected trees. Two oxytetracycline (OTC) products have been approved for use in Florida citrus as HLB treatments. A third OTC formulation expects Environmental Protection Agency approval soon. Trunk-injection treatments are the focus of the latest All In For Citrus podcast. Michael Rogers, director …
Doubling Down on CRISPR Research
By Michael E. Rogers We have all been waiting (and waiting some more) for new varieties to be developed that are resistant to HLB. Ten years ago, researchers thought they were really close to having new HLB-resistant varieties developed using gene-editing CRISPR technology. But as science goes, the story was much more complicated than first believed. A single edit to …
Brazilian Psyllid Increase Poses Extreme Risk
Brazil’s primary citrus region recorded a significant increase in the average number of HLB-spreading psyllids captured in the first half of August compared to the previous fortnight and the same period of 2022. In the citrus belt of São Paulo and Triângulo/Sudoeste Mineiro, there was an average growth of 80.4% in the capture of psyllids in the last fortnight compared …
Shipping Georgia Citrus to Florida
The Georgia Citrus Association recently provided information for Georgia growers interested in shipping their citrus to Florida. CHECK REGISTRATIONFlorida citrus packers should be registered with the Florida Department of Agriculture and Consumer Services (FDACS) and the U.S. Department of Agriculture (USDA) if they send fruit out of Florida. The packer should have already reached out to the Florida Citrus Health …
Less Global Orange Production
Global orange production for 2022-23 is estimated by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) at 47.8 million metric tons (MMT), 5% less than the prior year. Lower production in the European Union, Turkey and the United States is only partially offset by a larger crop in Egypt. U.S. production is estimated to drop by over a …
Update on Citrus Greening in Georgia Groves
Citrus greening disease is no longer just a problem in residential trees in Georgia. For the first time last year, citrus greening, also known as huanglongbing or HLB, was observed in commercial plantings in Pierce, Wayne and Grady counties, says Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist. Oliver discussed the disease during a citrus meeting …
Citrus Packinghouse Day Is Aug. 24
Topics of interest to Florida’s fresh citrus industry will be addressed at Citrus Packinghouse Day on Aug. 24 in Lake Alfred. The event will be held at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. The free event in Ben Hill Griffin Hall will include an educational program, exhibitors and networking opportunities. …
The Benefits of Growing Citrus on UV-Metalized Reflective Mulch
By Jawwad Qureshi, Lauren Diepenbrock and Davie Kadyampakeni Protecting citrus trees from the Asian citrus psyllid (ACP) is critical to reducing the spread and severity of huanglongbing (HLB) or citrus greening disease. ACP, the vector of the pathogen responsible for causing HLB in citrus, needs young shoots to develop and reproduce. The frequent availability of viable shoots in young trees …
Trunk Injection Research Projects Summarized
The Citrus Research and Development Foundation (CRDF) recently issued a report describing some of its projects testing the injection of oxytetracycline (OTC) into trees as an HLB treatment. 1. Lukasz Stelinski and Kirsten Pelz-Stelinski, both of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), are measuring the impact of OTC injection on the Asian citrus psyllid (ACP) …
Stelinski Elected Entomological Society Fellow
Lukasz Stelinski, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomology professor, has been elected a fellow of the Entomological Society of America (ESA) for 2023. He is one of six recognized for outstanding contributions to entomology via research, teaching, Extension, administration, military service or public engagement and science policy. Stelinski works at the UF/IFAS Citrus Research …
Return-on-Investment Potential of CUPS
By Ariel Singerman and Arnold W. Schumann To exclude the Asian citrus psyllid (ACP, Diaphorina citri) vector of huanglongbing (HLB) and thereby produce disease-free healthy fruit, fresh citrus can be grown under protective screen structures. The expected economic benefit from adopting citrus under protective screen (CUPS) and excluding the ACP is increased yield and quality of fruit, which in turn, are …