By Tripti Vashisth, Jeff Brecht, Yu Wang and Faisal Shahzad In the last decade, fruit quality and size has become a major issue. Moreover, fruit peel color is another challenge to overcome for citrus growers who intend to sell for fresh fruit consumption. Many nutrients are known to improve fruit growth and quality in citrus trees. For example, potassium increases …
HLB Incidence Exceeds 44% in Brazil’s Citrus Belt
Fundecitrus’ annual survey of HLB in Brazil indicates that disease incidence rose from 38.06% in 2023 to 44.35% in 2024 throughout the Citrus Belt of São Paulo and Triângulo/Southwest Mineiro. This is the seventh consecutive year of growth for the disease. HLB was found in approximately 90.36 million trees. In total, there are 203.74 million orange trees throughout the Citrus …
Florida Citrus Gained Ground in 2023–24
The value and production of Florida citrus both rose in the 2023–24 season. The $221 million preliminary on-tree value of the 2023–24 crop is 6% more than the $208 million revised value for 2022–23. All citrus production in 2023–24 is 20.2 million boxes, up 12% from the previous season’s 18.1 million boxes. The figures were reported in the 2023–24 Citrus …
Medfly Quarantine Issued in California
A portion of Alameda County in California has been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of one wild mated female in Fremont. The U.S. Department of Agriculture, the Alameda County agricultural commissioner and California Department of Food and Agriculture (CDFA) are working collaboratively on the project. The quarantine area in Alameda County measures approximately …
Frequent Irrigation Benefits HLB-Infected Sweet Orange Trees
By Tripti Vashisth and Mary Sutton Citrus trees affected by huanglongbing (HLB) show significant root dieback. This dieback results in smaller root systems than would be seen in healthy citrus trees. These small root systems are limited in their uptake capacity. In other words, if an HLB-affected tree is given the same amount of water as a healthy tree, the …
Seeking Centennial Growers and Production Costs
Florida Citrus Mutual (FCM) is seeking information about centennial growers — families that have been in the citrus business 100 years or more — so it can honor them. The statewide grower organization is also asking growers to participate in surveys that will determine the cost of production of Florida fresh grapefruit and processed oranges. CENTENNIAL GROWERS FCM wants to …
HLB and Psyllids in Georgia Commercial Citrus
One of Georgia citrus growers’ worst fears is slowly becoming a reality. Citrus greening, also known as huanglongbing (HLB), was observed in a Georgia commercial citrus grove for the first time in 2023. This is alarming news for the industry, says Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist. “We knew HLB was here in residential …
Tree Age and Yields: Implications for Trunk Injection
By Ariel Singerman This article examines the impact of HLB and other factors on yield by tree age group in Florida using U.S. Department of Agriculture statewide average data from 1994 to 2021. To focus on the impact of HLB and other relevant lasting factors, seasons in which there were hurricanes or freezes are excluded. YIELD REDUCTIONS Figures 1 and …
Syngenta Seeks Citrus Interns for Summer
Syngenta Crop Protection has announced it is accepting applications for its summer 2025 citrus internship program. These are paid internships offering hands-on experience in the agriculture industry. Applications can be made online. Applicants should complete the survey and upload their resumes here. The deadline for applying is Nov. 8, 2024. ABOUT THE INTERNSHIPS Interns are assigned to mentors and territories …
Perricone Farms Acquires Natalie’s Orchid Island Juice Company
Perricone Farms, a craft juice company headquartered in California, announced its acquisition of Natalie’s Orchid Island Juice Company, based in Fort Pierce, Florida. Perricone Farms stated that the merger “strengthens both brands and enhances the ability to serve customers with excellence in quality and customer service coast-to-coast.” It added that the combined company will be able to take advantage of …
Maximizing the Value of a Trunk-Injection Product
Sponsored Content In this special series, Tom Johnson, owner of TJ BioTech, tackles questions about optimizing trunk-injection applications to treat HLB. Q: What is the proper way to handle and inject ReMedium TI® to get the most value from the product? Tom Johnson: Because purity matters, it is important to purchase a trunk-injection product for HLB control in citrus that …
Factors to Consider When Planting a New Grove
Growers have numerous things to think about when planting a new grove. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus genetic improvement specialist John Chater discussed this topic during a recent Citrus & Specialty Crop Expo presentation. Following are highlights from his talk on establishing new varieties in a new citrus grove. PESTS AND DISEASES Soilborne pests …
Brazil’s Orange Forecast Falls Further
Fundecitrus and its cooperators issued the first update to Brazil’s 2024–25 orange crop forecast on Sept. 10. The forecast of 215.78 million boxes for the São Paulo and West-Southwest Minas Gerais Citrus Belt is down 7.1% from the initial May forecast of 232.38 million boxes. With a total reduction of 16.6 million boxes, all varieties are expected to have lower …
Industry Input Needed for Proposed Rule on Heat Protection
The U.S. Department of Labor recently announced the opening of the public comment period for its proposed rule intended to protect millions of workers from the significant health risks of extreme heat. The proposed rule, Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings, was published in the Federal Register. Announced in July by the department’s Occupational …
Symptoms and Management of Brown Rot and Greasy Spot
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) presenters on Aug. 30 discussed symptoms and management of the fungal citrus diseases brown rot and greasy spot. Plant pathologist and associate professor Megan Dewdney, the featured speaker, focused on management. Multi-county citrus Extension agent Mongi Zekri, who hosted Dewdney’s talk, described disease symptoms. BROWN ROT Brown rot is usually …
The Best Defense for Mitigating Preharvest Fruit Drop
By Tripti Vashisth Over the past decade, HLB-associated fruit drop has become a significant problem in Florida groves. Many growers opt to harvest the fruit before the peak fruit drop begins. However, the downside to this strategy is that the fruit does not get enough time for optimal Brix accumulation. Plant growth regulators, when applied at the right time, can …
Packinghouse Day in Florida Is Sept. 12
Fresh fruit growers, packers and researchers will meet for the 2024 Packinghouse Day on Sept. 12 in Lake Alfred, Florida. The annual event will be held at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. Registration opens at 8:30 a.m., and the event runs from 9:30 a.m. to 12 p.m. The event …
Citrus Nutrient Management Recommendations Continue to Evolve
When HLB arrived in Florida, it changed the world for citrus growers, and a lot of other things had to change with it. One of the biggest changes has been how growers manage their fertilizer programs. The nutrient recommendations that had been developed by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) before HLB became outdated because …
Heat and HLB Hurting Brazil’s Production
Brazil’s citrus crop is suffering this season, according to Franklin Behlau, a senior researcher for Fundecitrus. That was the focus of a recent presentation he provided at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred. “Things have changed in Brazil this season,” Behlau said. “We are a little behind …
Risk of Citrus Floral Rot in Brazil
Brazil’s Fundecitrus recently issued an alert about the risk of citrus floral rot during the current citrus flowering period. Citrus flowering periods must be on growers’ radar to avoid damage to orchards caused by citrus floral rot, also known as starlet. Attention must be doubled, especially if the flowering coincides with rainy periods, a determining factor in the occurrence of …