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Colorado State University (CSU) hurricane researchers are predicting an above-average Atlantic hurricane season in their initial 2025 forecast report. The CSU team is predicting 17 named storms during the season, which runs from June 1 to Nov. 30. Of those, researchers forecast nine to become hurricanes and four to reach major hurricane strength (Category 3, 4 or 5) with sustained …
Jake Price, who has helped introduce cold-hardy citrus to Georgia, was recently honored by the University of Georgia (UGA). He is one of five UGA faculty and staff members recognized for their commitment to public service and outreach. Price won a Walter Barnard Hill Award, named for UGA Chancellor Walter B. Hill. Each award recipient receives a medallion, a permanent …
Fundecitrus researchers Juan Arenas, Mônica Neli Alves and Sílvio Lopes recently participated in the Conference of the International Organization of Citrus Virologists in Mildura, Australia. Alves discussed research conducted by Fundecitrus exploring the use of species in the genetic improvement of citrus trees resistant to greening. Lopes presented a comparative overview of greening and citrus variegated chlorosis, two of the …
Researchers from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and U.S. Department of Agriculture (USDA) delivered several presentations to a standing-room-only audience during the citrus seminars at the Florida Citrus Show in March. VARIETIES AND ROOTSTOCKS The citrus session began with a breeder panel discussing research on varieties and rootstocks. Participants were Manjul Dutt and Jude …
Growers in the cold-hardy citrus region are applying too much nitrogen to their groves. Muhammad Shahid, assistant professor of horticulture at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), discovered that unfortunate reality while conducting a research project in North Florida. Most citrus growers were following recommendations in the UF/IFAS Florida Citrus Production Guide, which are mostly …
The population of HLB-transmitting psyllids in Brazil dropped a significant 40% in 2024 from the prior year. Despite that drop, the psyllid population remains above the average recorded between 2014 and 2019, a period before the insect’s resistance to some insecticides was identified. This data reinforces the need for effective control strategies to prevent new psyllid population increases, according to …
By Maegan Beatty During a recent citrus insect management workshop at the Citrus Research and Education Center, Larry Duncan, University of Florida Institute of Food and Agricultural Sciences professor, addressed diaprepes root weevil management. This Caribbean pest was introduced to Florida in the 1960s. The adult pests feed and lay eggs in citrus tree canopies. The larvae feed on roots …
Jake Price and Mary Sutton of University of Georgia Extension recently wrote an article about alternate bearing of satsumas in Georgia. Edited excerpts follow. Satsumas tend to alternate bear, which can be a problem in commercial production. The freeze at the end of 2022 contributed to the majority of satsuma trees in Georgia having a light crop in 2023. This …
By Davie Kadyampakeni, Kondwani Kamsikiri and Alisheikh Atta Water scarcity is one of the major constraints in Florida citrus production systems, primarily due to erratic rainfall patterns and the low water- and nutrient-holding capacity of the predominantly sandy soils. The state’s soils contain more than 95% sand and have low organic matter (<1%) and very low water-holding capacity. These challenges …
April is a busy month for citrus events. The Florida Citrus Growers’ Institute was held in Avon Park early in the month followed by a citrus field day at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center (SFWREC) in Immokalee. These events are the topic of the April episode of the …
The disease branch rot is worrying Brazilian citrus growers because of its recent increased occurrence in orchards. Branch rot is also called peduncular rot, branch gummosis or bot gummosis. The main reason for the disease’s occurrence is stress caused to citrus plants by high temperatures, severe periods of drought and attacks from other diseases, such as greening. Fungi of the …
International Flavors & Fragrances, Inc. (IFF) on April 9 announced the opening of the Citrus Innovation Center in Lakeland, Florida, in partnership with Florida Polytechnic University. According to IFF, the 30,000-square-foot facility “encompasses state-of-the-art capabilities in botanical research leveraging … natural ingredients expertise, processing, analytics and product creation for scent and taste.” IFF stated that the center offers job opportunities …
Parasitic weeds are ruthless freeloaders, stealing nutrients from crops and devastating harvests. But what if growers could trick these invaders into self-destructing? Scientists at University of California, Riverside (UCR) think they’ve found a way to turn the weeds’ own biology against them. This trick is detailed in the journal Science. At its heart lies a class of hormones called …
Florida Foundation Seed Producers, Inc. (FFSP) has signed a licensing agreement with New Varieties Development and Management Corp. (NVDMC) to introduce new citrus varieties showing tolerance to HLB. The HLB-tolerant varieties covered by the agreement are: The collaboration also includes the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and the Florida Department of Citrus. It aims to …
Malcolm Manners, Florida Southern College (FSC) professor of citrus science and coordinator of the citrus and horticultural science program, will soon retire after 44 years at the college. Manners’ fascination with plants and horticulture started at a young age. “My parents were always gardeners, and I’ve had an interest in plants my whole life,” he said. After earning a bachelor’s degree …
The National Council of Agricultural Employers (NCAE) recently urged the U.S. Department of Agriculture (USDA) to investigate a halt in federal funds to farmers to help address critical labor shortages and reduce irregular migration from Northern Central American countries. The request was in a letter to Secretary of Agriculture Brooke Rollins. Last year, USDA’s Farm Labor Stabilization and Protection Pilot …
By Fernando Alferez, Divya Aryal and Saoussen Ben Abdallah In the last few years, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus horticulture team at the Southwest Florida Research and Education Center (SWFREC) in Immokalee has performed several research trials in commercial farms and at the experimental farm at the SWFREC to elucidate the effect of …
Growers use the citrus under protective screen (CUPS) production system to protect trees from the Asian citrus psyllid, the insect vector of HLB disease. While grapefruit is most commonly grown in CUPS, statistics support the belief that CUPS can be conducive to other types of citrus. “There’s a need to establish the growing requirements and the needs of other varieties. …
Florida Gov. Ron DeSantis recently appointed five new members to the Florida Citrus Commission (FCC) and reappointed five members. The new appointees are Emma Ezell, Sean Frielich, Vernon Hollingsworth III, Daniel Hunt and Melanie Ressler. Steve Johnson, Carlos Martinez, William Poulton, Daniel Sutton and John “Patrick” Schirard were reappointed. The FCC is the governing board of the Florida Department of …
The California Department of Food and Agriculture (CDFA) declared a citrus quarantine expansion in San Diego County’s Valley Center on March 26. The expansion occurred after detection of HLB disease in two citrus trees in residential neighborhoods in the Valley Center area during regular inspections. HLB is a major threat to San Diego County’s $144 million annual citrus crop …
