pests

HLB Alters Nutrition Needs

Ernie NeffHLB Management, Nutrition

Yield and fruit size are not good measurements of the nutrition needs of HLB-affected trees, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered. “So we decided to go with something that’s fruit independent for the study,” says UF/IFAS scientist Arnold Schumann of the Citrus Research and Education Center at Lake Alfred. Schumann says he and …

Texas A&M AgriLife Research, Consortium Get Grant for HLB Research

Tacy CalliesResearch

A Texas A&M AgriLife Research scientist at Weslaco will lead a consortium of researchers in major citrus-producing regions to conduct high-throughput screening in discovering antimicrobials that could prevent citrus greening. Citrus greening, also known as huanglongbing (HLB) disease, has devastated citrus fruit crops in Florida and has made its way to Texas and California. The research grant of approximately $1.2 …

The Sweet Spot

Tacy Calliesplanting, Production, Rootstocks, Scions

Moderate spacing and medium tree size could be the quickest way Florida growers can return to producing 100 million boxes of oranges per year. By Pete Spyke, Bill Castle and Ed Stover The Florida Department of Citrus (FDOC) recently released the results of a study originally titled “Restoring Florida’s Commercial Orange Tree Inventory: Economic Impacts of APS vs. Traditional Plantings.” …

fungus

Scientists Use Fungus to Manage Asian Citrus Psyllids

Daniel CooperCitrus, Industry News Release, Psyllids, Research

  Fighting plant disease with jet blast sprays is standard practice for citrus growers. But, to spray a fungus to control a single insect that carries a disease-causing pathogen is uncommon. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and Florida Research Center for Agricultural Sustainability researchers have begun to test an insect-killing fungus applied with horticultural oil …

Jack Payne on New SWFREC Director

Abbey TaylorResearch

By Jack Payne, jackpayne@ufl.edu, @JackPayneIFAS Kelly Morgan is a more reliable water source than rain is. You don’t know when or if you’ll get water from the sky, but what Morgan can teach you makes every drop you have go farther. His focus on the farmer as customer is what has made him so successful as the state’s best management …

Artificial Intelligence for Detecting Citrus Pests, Diseases and Disorders

Tacy CalliesTechnology

By Arnold Schumann, Laura Waldo, William Holmes, Gary Test and Tim Ebert Artificial intelligence (AI) is increasingly common in electronic devices at home or work, in social media, video streaming services, electronic commerce, and in internet search engines. Now, AI is rapidly entering the farming scene. Growers using modern precision agriculture tools and techniques often face a barrage of high …

citrus

Citrus Youth Day: Science and Recruiting

Ernie NeffCitrus

Citrus Youth Day at Lake Alfred’s Citrus Research and Education Center (CREC) on June 28 gave the University of Florida (UF) a chance to teach a little science and recruit future UF students. Jamie Burrow, Extension program manager for UF’s Institute of Food and Agricultural Sciences (UF/IFAS) and Citrus Youth Day coordinator, said more than 70 youngsters registered for the …

Cold-Hardy Citrus for North Florida

Tacy CalliesVarieties

By Xavier Martini and Peter Andersen Cold-hardy citrus has a long history in North Florida, Alabama, Louisiana and Georgia. Records show that sweet orange, citron, lemon, lime and pummelo were brought to Saint Augustine, Florida, from Spain in 1565. However, it was not until the late 1700s that the Jesuits introduced satsuma (Citrus unshiu) to what is now Louisiana. SATSUMA …

Field Testing of New HLB-Tolerant Scions and Rootstocks

Tacy CalliesResearch, Rootstocks, Scions

By Rhuanito S. Ferrarezi, Jude W. Grosser, Fred G. Gmitter, Ed Stover and Kim Bowman Citrus is Florida’s most important agricultural commodity. The state produces citrus for different markets: round oranges for juice; navels, mandarins, grapefruit and lemons for the fresh-fruit industry; and lemons for extracting peel oil for processing. Huanglongbing (HLB) disease affects all citrus varieties. Since the discovery …

Alternatives to Rootstock Propagation by Seed: Differences, Concerns and Expectations

Tacy CalliesResearch

By Ute Albrecht Commercial citrus rootstock propagation traditionally occurs via use of nucellar apomictic seed, which generates genetically identical seedlings that are used as liners for budding. With the high demand for superior rootstocks in the age of HLB, commercial nurseries are currently experiencing a shortage of seeds for some of the most popular rootstock varieties. In addition, for many …

research

Committed to Clientele-Focused Leadership

Tacy CalliesNews from our Sponsor

By John Arthington Column sponsored by the Citrus Research and Development Foundation Hello. I want to take this opportunity to introduce myself and my new role at the Citrus Research and Development Foundation (CRDF). As many of you are aware, Harold Browning retired as chief operations officer (COO) to pursue other opportunities in private industry. At that time, Larry Black …

scott

Perdue Announces Florida Citrus Hurricane Recovery Details

Abbey TaylorCitrus, hurricane, Industry News Release

(Washington, D.C., May 1, 2018) – Under the direction of President Donald J. Trump, U.S. Secretary of Agriculture Sonny Perdue today announced new details on eligibility for a new U.S. Department of Agriculture (USDA) disaster program, 2017 Wildfires and Hurricanes Indemnity Program (2017 WHIP). Additionally, USDA will provide $340 million through a block grant to the state of Florida for Hurricane …

citrus research

CRDF Accepting Applications for Chief Operating Officer

Daniel CooperCitrus, Industry News Release

The Citrus Research and Development Foundation (CRDF) has launched a search for its next chief operating officer (COO). Located at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred, the CRDF is a direct support organization of the University of Florida. This not-for-profit corporation was established to support Florida’s citrus …

Managing Mites in Florida Citrus

Tacy CalliesPests

By Lukasz L. Stelinski, Jawwad A. Qureshi and Philip A. Stansly Florida citrus is host to four main groups of mites categorized by differences in lineage and morphology. However, only rust mites, spider mites and broad mites historically cause economic damage to commercially grown citrus in the state. The fourth group, referred to as false spider mites, are vectors elsewhere …

Herbicide Synergy for Citrus Weed Management

Tacy CalliesProduction, Research

By Ramdas Kanissery, Brent Sellers and Steve Futch Weed control is a major component of Florida citrus grove management. A warm, humid climate and frequent rainfall provide a conducive environment for prolific weed emergence and growth in citrus groves. Although there are several pre- and post-emergent herbicide products available for managing a diversity of citrus weeds, there is always an …

Current Considerations for Citrus Irrigation Management

Tacy CalliesIrrigation

Growers can use these tips and tools for trees impacted by HLB and Hurricane Irma. By Davie Kadyampakeni, Kelly Morgan, Mongi Zekri, Rhuanito Ferrarezi, Arnold Schumann and Thomas A. Obreza Water is a limiting factor in Florida citrus production during the majority of the year. This is because of the low water-holding capacity of sandy soils resulting from low clay …

morgan

Kelly Morgan Named New SWFREC Director

Daniel CooperIndustry News Release, Research

By Jack Payne I am pleased to announce that Kelly Morgan will be the next director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center (SWFREC). He will assume leadership of the center on August 1. Under the current leadership of Calvin Arnold, who  is retiring, SWFREC has enjoyed a fresh …

CRDF President Discusses Leadership Transition

Ernie NeffResearch

Citrus Research and Development Foundation (CRDF) President Larry Black discusses the hiring of John Arthington as interim chief operations officer (COO) and the search for a permanent COO. Harold Browning will leave the COO post at the end of March to work for a private firm. “Dr. Arthington was highly recommended by several (CRDF) board members (and) past board members,” …

research

CRDF Hires Interim Chief Operations Officer

Ernie NeffResearch

The Citrus Research and Development Foundation (CRDF), tasked primarily with researching and implementing management techniques for HLB, hired a cattle expert as interim chief operations officer on March 20. John Arthington will temporarily succeed Harold Browning, who resigns at the end of March to pursue HLB control strategies with Vero Beach-based Premier Citrus ApZ. Arthington is a University of Florida …

morgan

Nutrition and HLB

Ernie NeffHLB 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 …