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Below you'll see everything we could locate for your search of “disease”
U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) scientists are studying the possibility of the Donaldson sweet orange replacing the HLB-ravaged Hamlin in orange juice (OJ). The scientists work at the U.S. Horticultural Research Laboratory in Fort Pierce, Florida. While assessing citrus trees with oranges that might be used for commercial OJ production, the scientists found the Donaldson tree at the …
Citrus Research and Development Foundation President Morgan McKenna Porter said individual protective covers (IPCs) give newly planted trees a “fighting chance” against huanglongbing (HLB) and serve as a bridge until HLB-resistant trees are available. “IPCs are not flawless, but they certainly can be optimized,” Porter said. “I have the ability to plant a young tree and put an IPC over …
Before HLB, canker and diaprepes root weevils became major problems for Florida citrus growers, weeds were among the constant and major annoyances in groves. Even with the pests and diseases growers have faced over the past five decades, the need for weed control may be as important, and costly, as ever. A University of Florida Institute of Food and Agricultural …
Florida landowner Alico, Inc. announced May 13 that it completed its last major citrus harvest in April. The company will conduct a final harvest on the majority of its 3,783 acres of remaining operational citrus groves in fiscal year 2026. Alico has negotiated agreements to lease another 5,250 acres of different groves to third-party citrus growers next season. Earlier this …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center hosted an OJ Break seminar on May 14. The speakers provided updates on developing a gene-edited citrus tree with resistance to HLB and how growers can use existing tools to mitigate the disease. Nian Wang, UF/IFAS professor, provided an update on the status of …
Ching-Hong Yang, University of Wisconsin-Milwaukee (UWM) biological sciences professor, was recently awarded a $1.5 million federal grant to support research on a compound that suppresses HLB disease. His project is titled Bringing RejuAgro to Market: Development of a Groundbreaking Trunk Injection Biopesticide for Huanglongbing (HLB). The grant is from the U.S. Department of Agriculture National Institute of Food and Agriculture …
Carlton Collins recently was named top master’s researcher in the E. Broadus Browne Research Awards for Outstanding Graduate Student Research competition at the University of Georgia (UGA) College of Agricultural and Environmental Sciences. He was recognized for his research on huanglongbing (HLB) disease, also known as citrus greening. Collins, born in Jamaica, was introduced to citrus production on a small …
Texas A&M AgriLife Research scientists have developed an approach to countering the citrus disease HLB as well as zebra chip disease in potatoes and other vegetables. Their method uses spinach antimicrobial peptides, known as defensins, which naturally defend plants against a broad range of pathogens. Their study results were recently published in the Plant Biotechnology Journal. The effects show significant …
By Jawwad A. Qureshi Several insect pests and mites colonize citrus crops in traditional open orchards. Most pests are localized and are suppressed by predators, parasitoids and entomopathogens to levels that are not economically damaging to the crops. The Asian citrus psyllid (ACP) is the primary vector of huanglongbing (HLB) disease. Despite biological and chemical control of ACP, growing a …
By Marisa L. Zansler One-hundred percent orange juice (OJ) has long been a favorite in American households, but supply challenges, changing consumer behaviors, a crowded beverage category and higher prices have impacted how much OJ consumers buy. Recent research conducted by Sungeun Yoon sheds light on consumer price sensitivity and substitution behaviors within the category, offering actionable insights for growers, …
Not surprisingly, the focus of the Citrus Research and Development Foundation (CRDF) centers on providing growers with help to overcome huanglongbing (HLB) disease. CRDF President Morgan McKenna Porter believes that help will best come with the development of the “tree of the future.” She says that tree does not have to be completely resistant to citrus greening. As long as …
Researchers with the French Agricultural Research Centre for International Development (CIRAD) recently visited Brazil to discuss cooperative efforts with Fundecitrus to develop greening-resistant orange trees. The CIRAD researchers were Raphaël Morillon and Bárbara Hufnagel. CIRAD is an agronomic research and international cooperation organization for the sustainable development of tropical and Mediterranean regions. CIRAD maintains a large citrus genomic database on …
The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) in April made several changes to Mexican fruit fly (Mexfly) quarantines in Texas. This includes: SULLIVAN CITY The Sullivan City quarantine was expanded by 24 square miles to 79 square miles following detection March 12 of Mexfly larvae in sour orange …
By Peter Chairs The University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) commitment to the use and development of artificial intelligence (AI) in production agriculture is fueling conversations throughout the citrus industry. For most of us, AI was not even on our radar a few years ago. Today, commercial and nursery growers are excited about the development of …
A research team led by Jian Ye from the Institute of Microbiology of the Chinese Academy of Sciences has identified the first mechanism of citrus resistance to HLB. Results of the study were published in Science. Utilizing artificial intelligence (AI), the team has also developed antimicrobial peptides that offer a promising therapeutic approach to combat the disease. This discovery addresses …
Fifth-generation Floridian David Sumner, who grew up in a citrus family, has written “The Rise, Fall, and Future of Florida’s Citrus Industry.” The 327-page book includes historic citrus photos dating back to the late 1800s. Sumner tells the story of Florida citrus from the end of the Civil War to the present. He visited Florida archives and conducted 53 interviews …
A bill passed unanimously by the Florida Senate and awaiting House approval would fund a $1 million Florida A&M University (FAMU) research project to identify alternative crops for former citrus lands. While the legislation authorizes the study, it is contingent on funding approval. The $1 million budget allocation for the FAMU project is part of a larger agricultural relief effort …
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 …
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 …
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 …
