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Nutrition and HLB

Ernie Neff HLB Management, Nutrition

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor Kelly Morgan discusses the importance of nutrient leaf concentrations in HLB-infected citrus trees. “The leaf concentration (of nutrients) is reduced in all HLB trees,” he says. “We’ve known that for a long time, since HLB was found in Florida.” Morgan, who works at the Southwest Florida Research and Education …

State of the Florida Citrus-Packing Segment

Tacy Callies Citrus

By Peter Chaires Florida’s fresh-packing segment is in a significant period of transition. The freezes of the 1980s caused substantial southward movement of citrus production and the loss of supply to most packinghouses in the northern regions. During this time, urban expansion and construction booms were also depleting acreage that supplied fresh houses. The early battles against citrus canker eliminated …

On-Farm Readiness Reviews Help Growers with Produce Safety Rule

Tacy Callies Food Safety

By Travis K. Chapin, Keith R. Schneider, Renée Goodrich Schneider, Jessica Lepper, Rachel McEgan and Michelle D. Danyluk The Produce Safety Rule (PSR) was published by the U.S. Food and Drug Administration (FDA) in the Federal Register in November 2015 as one of seven major new regulations under the Food Safety Modernization Act (FSMA). The PSR covers activities related to …

Foliar Nutrition Research Update

Tacy Callies Nutrition

By Rhuanito S. Ferrarezi, Alan L. Wright, Kelly T. Morgan, Philip A. Stansly, Monica Ozores-Hampton and Robert Ebel Huanglongbing (HLB) or citrus greening is endemic in Florida, resulting in billions of dollars of losses since the state’s first detection in 2005. The disease induces visual symptoms in leaves and branches, while severely impacting citrus fruit yield and quality. Fibrous root …

University of Florida Hosts Citrus Photography Contest

Tacy Callies Industry News Release

In an effort to showcase the region’s citrus industry heritage, a local University of Florida (UF) research professor is hosting a digital photography contest. Rhuanito “Johnny” Ferrarezi is an assistant professor at UF’s Institute of Food and Agricultural Sciences (IFAS) Indian River Research and Education Center (IRREC) near Fort Pierce. Ferrarezi leads the center’s citrus horticulture research program, including the …

HLB Management, PGRs and Fruit Drop

Tacy Callies News from our Sponsor

Column sponsored by the Citrus Research and Development Foundation Plant growth regulators (PGRs) are chemicals that increase or decrease plant growth, flowering and/or fruit set. PGRs include some herbicides. This article summarizes research studies on how PGRs might aid in the management of HLB. Although several successful herbicide practices were developed by University of Florida Institute of Food and Agricultural …

University of Florida Helps Guide Georgia Citrus Association

Abbey Taylor Research

University of Florida researchers assisted their neighbor to the north as they put together several presentations to help build the Georgia citrus industry. The presentations were made during the second annual Georgia Citrus Association Conference, which was held Feb. 26 at the University of Georgia Tifton Conference Center. Lindy Savelle, president of the Georgia Citrus Association, says she is very …

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OJ May Soon Come from HLB-Tolerant Fruit

Daniel Cooper Citrus Greening, Industry News Release, Research

Some people like to wake up and drink a glass of fresh Florida orange juice. With the greening disease ravaging Florida’s citrus industry, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers want to make orange juice from disease-tolerant fruit. Huanglongbing (HLB), or citrus greening as it’s commonly called, has destroyed 80 percent of citrus in Florida, a …

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8 Million-Year-Old Gene Could Help the Citrus Industry

Daniel Cooper Industry News Release

After 100 years of assertions about the roots of citrus, a global group of scientists — including a University of Florida professor — has traced the evolutionary history of Florida’s signature crop up to 8 million years ago in the Himalayas of Southeast Asia. Through analyses of 60 types of citrus whose genomes they sequenced, scientists identified 10 natural citrus …

Grapefruit Economics: The Bad News Continues

Ernie Neff Grapefruit

An economic update on the Florida grapefruit industry delivered at the recent Florida Citrus Show indicates that the few grapefruit growers who remain struggle mightily to make a profit. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) economist Ariel Singerman delivered the report, which he summarizes. “Production costs are only up marginally on a per-acre basis; only up …

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Update on Thermotherapy Research

Tacy Callies News from our Sponsor, Thermotherapy

Column sponsored by the Citrus Research and Development Foundation As early as 1965, high-temperature treatments were shown to reduce HLB bacterial infection without killing the tree. Trials [Ehsani, University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS)] using portable, semi-transparent, plastic houses were placed over trees, achieved temperatures of above 120 F for several hours over several days, and reduced …

Tools for Integrated Management of Citrus Psyllids and Leafminers

Tacy Callies Pests, Psyllids, Research

By Jawwad A. Qureshi, Philip A. Stansly and Lukasz L. Stelinski Pest management has always been important for citrus production in Florida. It has become even more critical following invasion of the Asian citrus psyllid (ACP) and citrus leafminer (CLM), due to their association with huanglongbing (HLB or citrus greening) and canker diseases, respectively. ACP and CLM develop and reproduce …

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Root Biologist Joins UF Fight Against Citrus Greening

Daniel Cooper Citrus, Citrus Greening, Industry News Release, Research

By Robin Koestoyo, University of Florida Institute of Food and Agricultural Sciences An inventive fruit tree researcher has joined the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center. Lorenzo Rossi is the center’s first-ever root biology professor and will support the university’s statewide Institute of Food and Agricultural Sciences’ commitment to restore Florida’s $9 …

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Cold-Tolerant Citrus Industry Update

Jaci Schreckengost Freeze Protection, Top

Two University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professionals spoke at the recent Cold-Tolerant Citrus Production for the Southeastern Coastal Plain event about the current state of the industry. UF/IFAS entomologist Xavier Martini said he has seen growth in interest for cold-tolerant citrus between 2016 and 2017. He also said he has seen an increase in the …

Root Weevil Management: Above and Below Ground

Tacy Callies Pests

By Jawwad A. Qureshi and Larry Duncan Root weevils are a major pest group for many kinds of plants, with at least nine species that colonize citrus. Species commonly infesting citrus include Diaprepes root weevil (Diaprepes abbreviates), blue-green citrus root weevils (Pachnaeus litus and Pachnaeus opalus), little leaf notcher (Artipus floridanus), Fuller rose beetle (Asynonychus godmani) and Sri Lanka weevil …

Register for the 2018 Florida Agricultural Hall of Fame Banquet

Abbey Taylor Citrus

The Florida Agricultural Hall of Fame Banquet will take place Feb. 13 in Tampa. This event will honor the 2018 inductees to the hall of fame. Four agricultural leaders have been chosen to enter the hall of fame this year. They are Alfonso Fanjul, J. Pepe Fanjul, Lowell Loadholtz and Harold K. Mikell. These four men have dedicated their lives …

Understanding the Foreign Supplier Verification Programs Rule

Tacy Callies Regulation

By Travis K. Chapin, Keith R. Schneider, Renée Goodrich Schneider and Michelle D. Danyluk On Nov. 27, 2015, the U.S. Food and Drug Administration (FDA) published the Foreign Supplier Verification Programs (FSVP) for Importers of Food for Humans and Animals rule in the Code of Federal Regulations under the Food Safety Modernization Act (FSMA). The final rule requires that importers …

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Events Educate Growers on Cold-Tolerant Citrus

Jaci Schreckengost Freeze Protection, Top

Events across the Southeast are being held to help meet growers’ needs for information and resources on growing cold-tolerant citrus. Many north Florida and south Georgia growers are interested in these crops as weather patterns begin to shift. One event was Cold Tolerant Citrus Production for the Southeastern Coastal Plain, held on Dec. 13. “We’re trying to have a meeting …

Sweet Orange Scab Detected in Alabama

Tacy Callies Diseases

U.S. Department of Agriculture (USDA) officials have confirmed the first detection of sweet orange scab (SOS) in Alabama. The fruit sample was collected in Baldwin County by Alabama Department of Agriculture and Industries’ (ADAI) plant protection inspectors during a delimiting survey for citrus greening disease. The Auburn University Plant Diagnostic Clinic provided the initial diagnosis of SOS, and USDA Animal …

Cold-Tolerant Citrus Production Event

Jaci Schreckengost Freeze Protection, FSMA, Top

More than 100 growers from Florida and Georgia gathered at the Cold-Tolerant Citrus Production for the Southeastern Coastal Plain educational event on Dec. 13. Bob Hochmuth, director of the University of Florida Institute of Food and Agricultural Science’s (UF/IFAS) Suwannee Valley Agricultural Extension Center, introduced the event, which was held at the center. Morning presentations by UF/IFAS speakers included information …