By Tripti Vashisth, Abhishek Neupane and Taylor Livingston Florida citrus trees are under pressure from huanglongbing (HLB). The disease weakens root systems, reducing the tree’s ability to take up water and nutrients. Compounding this issue, most Florida groves sit on sandy soils with very little organic matter. These soils drain quickly, struggle to hold nutrients and allow both water and …
A Pure Product Pays Dividends
Sponsored Content Question: Does the purity level of ReMedium TI® help aid the therapeutic response to citrus greening with trees that are under environmental stress? Answer: During the research and development phase of ReMedium TI®, several things were observed that pertain to this question. First, trees that have been under relatively severe stress do have slower uptake of ReMedium TI®. …
Georgia Needs Management Plan for Citrus Greening
Citrus greening disease has yet to find its footing in Georgia’s commercial citrus. But if it does, Georgia’s growers need a plan in place to manage the disease. Lindy Savelle, executive director of the Georgia Citrus Association (GCA), emphasized that message during last week’s GCA annual meeting in Tifton. “There is a very small amount of the disease in commercial …
TJ BioTech and AgroSource Settle Patent Dispute
Sponsored Content Question: What is the status of the civil action that TJ BioTech filed against AgroSource? Answer: TJ BioTech LLC filed a civil action in August 2025 and received a preliminary injunction through the district court. This preliminary injunction had the effect of removing AgroSource’s product Rectify™ from the market. This past week, a confidential settlement was reached between …
Invaio and Fundecitrus Collaborate on HLB Solutions
Invaio Sciences, Inc. recently announced a collaboration with Fundecitrus (Fund for Citrus Protection), a research organization based in Araraquara, Brazil. The partnership aims to accelerate the development and evaluation of novel solutions — particularly peptide-based technologies — for controlling huanglongbing (HLB), also known as citrus greening disease. The collaboration combines Invaio’s Biologicals by Design™ platform and Fundecitrus’ expertise in grove …
New Research Center in Brazil to Seek Citrus Greening Solutions
With an investment of $200 million (in Brazilian reals), three citrus research organizations in Brazil have partnered to create a research center in São Paulo to seek solutions to citrus greening. The São Paulo Research Foundation (FAPESP), Fundecitrus and Luiz de Queiroz College of Agriculture at University of São Paulo (ESALQ-USP) agreed on Jan. 12 to establish the Applied Research Center …
Millennium Block HLB Findings Expected This Year
Fruit harvested at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Millennium Block from 2022 to 2026 will help determine the effectiveness of potential solutions to HLB. This season’s fruit will be harvested through early February, and research results are expected later this year. The Millennium Block was planted in 2019 at the UF/IFAS Indian River Research …
Micronutrients Mandatory to HLB Recovery
Sponsored Content Question: Now that we have ReMedium TI® as a therapy to treat HLB, what else can a grower do to speed recovery? Answer: Feed the trees. I know that answer is an oversimplification, but it is the correct answer. Your groves have been struggling for years because of the root damage from HLB. While growers can’t make up …
Growers Can Stay Productive in the Face of HLB
Despite declaring there will be no silver bullet for HLB, Ozgur Batuman in a Jan. 21 virtual seminar said growers using integrated pest management (IPM) tools “can stay productive.” However, the University of Florida Institute of Food and Agricultural Sciences associate professor also warned that producing citrus juice in Florida “will not be easy or cheap.” Oranges are by far …
All In For Citrus Podcast, January 2026
In the latest All In For Citrus podcast, Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, discussed a statewide citrus workshop hosted at the Southwest Florida Research and Education Center in January. The event provided a day full of educational presentations covering a wide range of topics. Rogers …
Oxytetracycline Performance Addressed at Citrus Workshop
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hosted a statewide citrus grower workshop in mid-January at the Southwest Florida Research and Education Center in Immokalee. The event offered a full day of education covering a wide range of topics, including management of pests, diseases, weeds and nutrients. Ute Albrecht, UF/IFAS associate professor of plant physiology, provided …
Grower Results With ReMedium TI® Mirror Researcher Results
Sponsored Content Question: Are there any updates on the performance of ReMedium TI® and citrus yield improvements? Answer: We are hearing from growers about groves in central and southern Florida where they are observing HLB recovery. I am getting reports from growers that have been steadfast users of ReMedium TI® that seem to be in agreement with much of the …
Amending Oxytetracycline With Ascorbic Acid
By Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman Trunk injections of oxytetracycline (OTC) have been proven to give huanglongbing (HLB)-affected citrus in Florida a boost in productivity and quality. However, previous studies have shown that even just six hours of exposure to heat and humidity in the grove can lead to OTC injections that no longer adequately suppress CLas …
Unraveling the Mechanisms Leading to Prolonged Tree Health by Combining IPCs and Brassinosteroids
By Fernando Alferez, Divya Aryal and Saoussen Ben Abdallah University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research in the last three years has found that the combined use of individual protective covers (IPCs) and brassinosteroids (BRs) enhances protection of citrus trees against HLB and other diseases that limit citrus production in Florida. The research has been conducted …
USDA Research Priorities Cite Citrus Greening
The U.S. Department of Agriculture (USDA) recently issued a directive about its research and development priorities. The priorities, which cite citrus greening in item 3, are: 1. INCREASING PROFITABILITY OF FARMERS AND RANCHERS While research to increase productivity has allowed American farmers and ranchers to provide the safest, most abundant and most affordable food and fiber supply, the volatility in …
Why HLB Is So Difficult To Control
Brazil’s Fundecitrus recently published a scientific article explaining why HLB is so difficult to control. “Why is it so difficult to control huanglongbing (HLB)? Point of view” was published by the journal Scientia Agricola (Agricultural Science). It was authored by Fundecitrus researcher Renato Bassanezi and post-doctoral researcher Isabela Vescove Primiano, in collaboration with the late professor Armando Bergamin Filho of …
What We’ve Learned From 20 Years of HLB Research in Florida
By Michael Rogers It has now been two decades since huanglongbing (HLB), or citrus greening, was first detected in Florida. That announcement in August 2005 changed everything for the Florida citrus industry. At the time, Florida citrus was still a global powerhouse. Less than a year earlier, HLB had been confirmed in Brazil, and we were aware of its devastating …
Implementing Insecticide Sprays for Winter Management of Psyllids
By Jawwad A. Qureshi In winter, citrus trees enter a state of quiescence due to lower light and cooler temperatures, which slows their metabolic activity. Therefore, most citrus trees do not produce new shoots during this period. These young shoots are essential for the growth of the Asian citrus psyllid (ACP), Diaphorina citri. The ACP is a small sap-feeding insect …
Trials Show Organic Tool Could Mitigate the Impact of HLB
Mountain Valley MD Holdings Inc. (MVMD) recently reported positive results from ongoing citrus field trials in Brazil for its Agrarius™ signaling technology. Agrarius™ is designed to organically increase crop yields, reduce fertilizer and pesticide usage and enhance plant health. MVMD has been working with a client-directed third-party agricultural partner, FARM ATAC, in Brazil to assess the impact of the application …
Citrus Greening Seminar Featured International Experts
Fundecitrus recently held an international seminar dedicated to citrus greening. The event had approximately 150 participants and featured experts from China and Brazil. GENOME EDITING Xuefeng Wang, from China’s Southwest University’s Citrus Research Institute, highlighted his interest in building a solid partnership in the area of genome editing. He said his group has already identified promising genes that can contribute …


























