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The 2026 Citrus Achievement Award winner Ned Hancock believes what makes Florida’s citrus industry special is its people. He said the grit and determination of growers have helped the industry weather the storm of HLB, and he’s cautiously optimistic about the future. “There is no question that citrus is a lifestyle and one big family,” Hancock said. “The people make …
By Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman The positive impact of oxytetracycline (OTC) trunk injections for citrus production in HLB-infected trees has been well established. Additionally, there has been extensive work showing that plant defense inducers (PDIs) can help boost tree health and reduce symptom development from a variety of pathogens. Based on this, University of Florida Institute …
A feature full of highlights from the Citrus & Specialty Crop Expo is the cover story of the September issue of Specialty Crop Grower magazine. The Expo returned to Fort Myers Aug. 12–13 and hit a home run at its new venue. Growers flocked to the Caloosa Sound Convention Center and Luminary Hotel for two days of learning, connecting and …
A recent University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) article addressed the use of plant defense inducers (PDIs) as sustainable alternatives to oxytetracycline (OTC) injection for HLB management. Researchers Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman at the Southwest Florida Research and Education Center (SWFREC) authored the article. Slightly edited excerpts of the article follow: PDIs …
By Jamie D. Burrow and Tripti Vashisth Florida citrus production continues to change, and staying up to date is vital. The Citrus & Specialty Crop Expo seminars are an opportunity for growers to hear the latest updates from University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers. A mix of panel discussions and presentations is scheduled to …
A new research platform may help scientists identify potential treatments for citrus greening disease faster, potentially speeding up the search for solutions. Citrus greening, also known as huanglongbing (HLB), is caused by the bacterium Candidatus Liberibacter asiaticus (CLas). The disease disrupts the tree’s ability to transport nutrients, leading to symptoms such as blotchy leaves, small and misshapen fruit, poor juice …
A newly published study suggests that the use of individual protective covers (IPCs) followed by monthly applications of homobrassinolide (HBr) after IPCs are removed is beneficial. The two-step approach can help young mandarin trees stay healthier longer and produce more fruit in Florida’s HLB-endemic environment. The study, “Combining Individual Protective Covers and Homobrassinolide Treatment Prolongs Tree Health and Increases Fruit …
By Flavia Tabay Zambon and Paulo Eduardo Branco Paiva Florida’s citrus industry has faced severe decline due to huanglongbing (HLB, also known as citrus greening). Production has dropped 92% since the 2003–04 season, according to the U.S. Department of Agriculture Economic Research Service. Growers have relied on cultural practices, tolerant varieties and antimicrobial treatments, especially oxytetracycline (OTC), which has recently …
By Peter Chaires There has been a good bit of talk recently about an anticipated shift in Florida citrus utilization. Some growers, who for many years saw their fruit utilized in processing, are looking for ways to get more of their crop in a fresh market carton for 2026–27. While grapefruit has always been grown with the fresh market in …
The June All In For Citrus podcast features Tripti Vashisth, associate center director and professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. She discusses the benefits of combining plant growth regulators (PGRs) with trunk injection of oxytetracycline (OTC). For most Florida citrus growers, application of OTC has …
Growers received welcomed news in June when trunk-injection therapy of oxytetracycline (OTC) was cleared for continued applications next season. Some growers have said the treatment has helped save groves from loss due to HLB. Ute Albrecht, University of Florida Institute of Food and Agricultural Sciences associate professor, has been one of the lead researchers on OTC applications and its effectiveness. …
TJ BioTech LLC has announced that, as of June 11, 2026, ReMedium TI has received a full Section 3 label and registration from the U.S. Environmental Protection Agency, along with state approval from the Florida Department of Agriculture and Consumer Services. The approved label allows for two consecutive years of treatment, starting with the 2026–27 season, followed by a one-year …
By Ute Albrecht, Larissa Nunes and Igor Silva Trunk injection of oxytetracycline (OTC) requires drilling a hole into the trunk and injecting a foreign substance into the tree. Not only does the physical damage from drilling cause injury, but the application of chemicals can exacerbate both the external and internal damage. BARK CRACKING Externally, aside from the drill hole, bark …
By Peter Chaires Spring is planning season for most Florida citrus organizations. New Varieties Development & Management Corp. (NVDMC) is no exception. The board recently met with all breeding teams to review 2025–26 sponsored projects and establish research priorities for 2026–27. Though some aspects of these projects will be covered in greater depth in future articles, this month’s column is …
By Ute Albrecht, Gabriel Pugina and Larissa Nunes According to a recent industry survey, 64% of Florida citrus growers have injected their trees for three consecutive years with oxytetracycline (OTC). This article reports the results from three research trials conducted by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Plant Physiology Team at the Southwest Florida Research …
The Citrus Industry section of the June 2026 issue of Specialty Crop Grower focuses on leadership and research. On the cover of the magazine is Ned Hancock, winner of the 2026 Citrus Achievement Award. He is being recognized for his decades-long leadership and dedication to serving Florida’s citrus industry. Don’t miss the accompanying video in the digital issue of the …
By Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman Citrus canker continues to impact Florida citrus, increasing premature fruit drop and decreasing yield and fruit quality. While copper sprays have long been relied upon to control this disease, concerns about environmental impact and possible resistance development have led to efforts to find sustainable alternatives. Previous studies have shown that plant …
Florida Citrus Mutual hosted its spring informational meeting for growers at Golden Ridge Groves in Alturas on May 13. Golden Ridge Groves is growing fresh fruit in citrus under protective screen and recently added you-pick and agritourism options for the public. Steven Hall, executive director of the Citrus Research and Field Trial (CRAFT) Foundation, gave an update and recounted the …
Research and field trials have been fairly consistent in showing that trunk injection of oxytetracycline (OTC) will reduce the HLB-causing bacteria in citrus trees, resulting in improved yield and quality. But what happens to the Asian citrus psyllid (ACP) when it feeds on treated trees? The answer to that question is becoming clearer now from research conducted by the University …
Researcher Ute Albrecht on April 21 shared lessons learned from three years of oxytetracycline (OTC) trunk injection for HLB management in Florida. Albrecht is an associate professor with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) specializing in citrus plant physiology. She works at the Southwest Florida Research and Education Center. Albrecht reported on results of a …
