usda

UF Researchers Work to Manage HLB in Grapefruit

Abbey Taylor Citrus Greening, Grapefruit

By Jaci Schreckengost Due to the rapid rate huanglongbing (HLB) has affected citrus, researchers are working on new management techniques for the disease. Rhuanito “Johnny” Ferrarezi, assistant professor in citrus horticulture at the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC), says research is being done to answer questions about how HLB …

rootstock

Biostimulants Have Positive Effects

Ernie Neff Biostimulants

University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) plant physiologist Ute Albrecht described the use of microbial amendments, specifically biostimulants, at a July 26 seminar in Immokalee. Albrecht works at the UF/IFAS Southwest Florida Research and Education Center, site of the seminar hosted by multi-county citrus Extension agent Mongi Zekri. “Biostimulants come in a wide range of different products” …

Hunt Brothers Fellowship Grows Future Citrus Industry Leaders

Daniel Cooper Citrus, Industry News Release, Research

Even when Matt Mattia was studying tomato breeding as a master’s student at the University of Florida (UF), he was dreaming of citrus. Now a doctoral student at UF, he’s working toward achieving that dream of working in one of Florida’s most important industries. Thanks to the Hunt Brothers Fellowship, which funds graduate research in citrus, Mattia can live, work …

Understanding Soil-Moisture Sensor Data

Tacy Callies Citrus, Irrigation

By Arnold Schumann and Laura Waldo Florida citrus trees may require irrigation throughout the year due to the extremely sandy soils with low water-holding capacities and the warm subtropical climate with distinct drought periods in spring. Citrus trees are evergreen and may be actively growing at any time, with no true dormant phase. HLB-affected trees are particularly prone to multiple …

Citrus Expo

Field Trials of Rootstocks and Scions: What Can They Tell Us?

Tacy Callies News from our Sponsor, Rootstocks, Scions

By Harold Browning Column sponsored by the Citrus Research and Development Foundation Plant breeding programs have been a mainstay of citrus production worldwide. They have served as a basis for gradual improvement in fruit quality, adaptability to varying growing environments, and most importantly, to disease management. For that reason, new germplasm has been a front line of pursuit in the …

HLB

New Citrus Production Guide Coming Soon

Ernie Neff Production

Jackie Burns, University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) dean for research, discusses a new Florida Citrus Production Guide that will be available to growers soon. She summarizes a presentation she made at the June Florida Citrus Mutual conference for Michael Rogers, director of the UF/IFAS Citrus Research and Education Center in Lake Alfred. “We’ve taken the Pest …

Preparing for and Recovering from a Hurricane

Tacy Callies Citrus, Weather

By Mongi Zekri, Bob Rouse and Jonathan Crane Hurricane preparation for citrus growers this year is the same drill as every year. Each year, growers look forward to the rainy season to help their young trees grow fast and their mature trees produce good crops. This year, growers will be praying for good distribution of rains following a year of …

Dual Treatment Tested for HLB Trees

Tacy Callies Citrus, Nutrition

Severe pruning combined with enhanced foliar nutrition did not prove cost-effective. By Monica Ozores-Hampton, Fritz Roka, Robert Rouse and Pamela Roberts Citrus trees affected by huanglongbing (HLB) become diminished, weak and develop dieback resulting in reduced production. Decline in fruit yield ultimately prevents economically acceptable commercial citrus production. Pruning and spraying foliar nutritionals are two practices being considered to restore …

mandarin

UF-Developed Mandarin Shows Increased HLB Tolerance

Daniel Cooper Industry News Release, Research

by Brad Buck, University of Florida/Institute of Food and Agricultural Sciences While citrus greening disease has blemished the Florida industry, University of Florida scientists have developed a mandarin hybrid that seems to be winning the battle. Now, researchers are learning what makes this fruit a fighter. University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered that a mandarin …

weather

UF-Developed Tools to Help Cope with Weather

Daniel Cooper Citrus, Industry News Release, Weather

by Brad Buck University of Florida Institute of Food and Agricultural Sciences Florida weather is unpredictable. While you cannot control the weather, you can use UF/IFAS-developed weather databases to improve farming, home irrigation and flood control. Researchers with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have written a new Extension document that summarizes several weather data …

psyllids

Two Big Psyllid Questions Answered

Ernie Neff HLB Management, Psyllids

Michael Rogers with the University of Florida’s Institute of Food and Agricultural Sciences (UF/IFAS) says growers frequently ask him two questions. One is whether they need to continue to control HLB-spreading Asian citrus psyllids even though HLB is widespread in Florida. The other is about the best time to spray for psyllids. Rogers, an entomologist and director of the UF/IFAS …

Insight on Improved Management of HLB-Affected Trees

Josh McGill Irrigation, Nutrition

Recent studies shed light on foliar nutrient and irrigation practices. By Kelly T. Morgan and Said Hamido Most citrus growers are well aware that citrus greening (HLB) is one of the most devastating citrus diseases in many parts of the world. The disease is widespread in Florida, Texas, Brazil, Mexico and other major production areas, causing significant concerns about the …

citrus celebrates anniversary

CREC and FDOC: Decades of Working Together

Daniel Cooper Citrus, Industry News Release, Research

As the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) celebrates its 100th anniversary, administrators are praising a decades-long relationship between researchers with CREC and the Florida Department of Citrus (FDOC). “Housing the FDOC and CREC scientists at the same location has brought together the expertise needed to address any issue facing the …

Sneak Peek: May 2017 Citrus Industry Magazine

Tacy Callies Nutrition, Sneak Peek

The topic of nutrition takes center stage in the May issue of Citrus Industry magazine. Part two of an article co-authored by growers and a researcher presents case studies on how controlled-release fertilizer can boost the health of HLB trees. Also included in the May issue is an update on grower citrus nutrition trials being conducted by University of Florida. …

Controlled-Release Fertilizer Boosts Health of HLB Trees (Part 1)

Josh McGill Nutrition

By Pete Spyke, Joby Sherrod and Jude Grosser Editor’s note: Look for part 2 of this article in the May 2017 issue of Citrus Industry magazine. Part 2 will present case studies using controlled-release fertilizer. Until now, most growers have considered controlled-release fertilizer (CRF) to be primarily for use on young trees, especially resets in existing groves. There is increasing …

Impact of the Water Bill on BMP Implementation     

Kelsey Fry Irrigation, Water

By Kelly Morgan Nitrogen and phosphorus are essential nutrients for plants and animals and are the limiting nutrients in aquatic environments. The correct balance of both nutrients is necessary for a healthy ecosystem; however, excessive nitrogen and/or phosphorus can cause significant water-quality problems. Typically, nitrogen is the limiting nutrient in spring and surface water systems. Therefore, even modest increases in …

South Korea Could Be a Lucrative Market for Florida Growers

Tacy Callies Grapefruit

By Brad Buck, 352-294-3303, bradbuck@ufl.edu GAINESVILLE, Fla. — How about grapefruit as a dessert or snack? That is how many South Koreans, especially younger ones, view the fruit. Therefore, Florida grapefruit growers may want to expand their shipments to that Asian nation, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers say. UF/IFAS researchers are doing a series …

Citrus Research and Education Center Starts Centennial Celebration

Tacy Callies Citrus

GAINESVILLE, Fla. — Nearly a century ago, a group of Polk County citrus growers raised about $14,000 to buy land for a research station. Now, the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) will celebrate the 100th anniversary of the Citrus Research and Education Center (Citrus REC). In 1917, UF/IFAS established the Citrus REC. Originally, only a few …

forecast

Review of Fast Track for Fresh Selections Summarized

Ernie Neff Rootstocks, Scions

Peter Chaires, executive director of New Varieties Development & Management Corp. (NVDMC), summarizes a January 5 meeting seeking input on the Fast Track program. Fast Track lets citrus growers and nurseries access experimental University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) fresh citrus selections much earlier than was previously possible. Fast Track was co-developed by NVDMC, UF/IFAS and …

Fast Track

Grower/Nurseryman Suggests Fast Track Changes

Ernie Neff Citrus Greening, Rootstocks, Scions

Nurseryman and citrus grower Phil Rucks was one of several industry members offering input on the Fast Track program on January 5 at the Citrus Research and Education Center in Lake Alfred. Fast Track lets citrus growers and nurseries access experimental University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) fresh citrus selections much earlier than was previously possible. Among …