The Ins and Outs of Tango

Tacy Callies Varieties

The relatively mild winter conditions over the last two decades have led to a resurgence of interest in cold-hardy citrus in Florida. Growers were looking for a low-seeded citrus variety that was sweet, easy to peel and had moderate cold tolerance. In 2009, the first Florida nurseries were licensed to grow Tango, a low-seeded (less than five seeds per fruit …

Summer Tree Care Practices to Improve Fruit Quality and Yield

Tacy Callies Citrus, Production

By Fernando Alferez and Tripti Vashisth As summer approaches and citrus trees bear developing fruit, growers can engage in several practices to improve fruit quality and yield. As temperatures rise and daylength increases, conditions are conducive for enhanced photosynthesis and accumulation of soluble sugars in the fruit. It is important to note that, in general, the temperature is negatively correlated …

planting

Planting-Density and Nutrition Trial Results

Ernie Neff planting

Planting-density and nutrition trials in the Indian River area were among the topics discussed at the Florida Citrus Show earlier this year. The presenter was Rhuanito “Johnny” Ferrarezi, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher at the Indian River Research and Education Center.  A grapefruit planting-density trial utilized a staggered diamond set to maximize trees …

Rootstock Trial Results on New Website

Tacy Callies Rootstocks

A new website with a wealth of information about citrus rootstocks is now available at https://citrusrootstocks.org/. Rootstock breeder Kim Bowman, with the U.S. Department of Agriculture (USDA) Agricultural Research Service in Fort Pierce, has posted results from 37 replicated multiyear rootstock field trials in Florida. The results can be easily accessed from the site by computer, tablet or smartphone.  According …

Effect of Planting Density and Enhanced Nutrition on Grapefruit

Tacy Callies Nutrition

By Rhuanito Soranz Ferrarezi, Dinesh Phuyal, Davie Kadyampakeni and Kelly Morgan The Indian River District is the world’s premier grapefruit production region due to a warm, ocean-facing humid climate and Flatwoods soils. The geographical location leads to the production of fruit with thin rinds and exceptional juice and color that has been a high-value export delicacy in Europe and Asia. …

fresh

Keeping Fresh Fruit Marketable

Ernie Neff Fresh

Mark Ritenour with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) discusses research efforts to keep Florida’s fresh fruit marketable. Ritenour is a postharvest horticulturist at the Indian River Research and Education Center. Ritenour begins with maximum residue limit requirements for chemicals in fresh citrus for export. A UF/IFAS website provides pesticide residue limits by various major …

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IMG Citrus Invests in Packinghouse

Daniel Cooper Industry News Release, Technology

IMG Citrus, a family-owned, vertically integrated citrus grower, packer and shipper in Vero Beach, Florida, has invested $1.5 million into its packinghouse processing line. The company added a state-of-the-art electronic fruit grader, the Global Scan 7, manufactured in France. The new sorter has the ability to precisely capture 120 images per fruit and up to 120 fruit per second in …

Growers Have a Bigger Problem Than HLB

Ernie Neff HLB Management, Market

“A bigger gorilla by far than HLB, going into the future, is slumping market demand for citrus products from Florida and apparently from other producing areas in the United States as well,” declares Apopka citrus grower Chip Henry of McGuire Groves. He believes the decline in demand for Florida citrus products is related to HLB reducing fruit quality. “Consumers are …

Working Toward Better Orange Juice in the HLB World

Tacy Callies Breeding, Orange Juice, Varieties

By Jude Grosser, Fred Gmitter, Yu Wang and Bill Castle It’s no secret that huanglongbing (HLB) has challenged the industry to maintain the outstanding quality associated with Florida orange juice. Moreover, increased prices and competition from new juice products and blends have reduced Florida orange juice consumption. We believe that improving the quality, especially flavor and color, of juice products …

Small Citrus Growers Struggling to Sell Valencias

Tacy Callies Citrus, Economics, sales

Citrus grower Chip Henry of McGuire Groves in Apopka reports that some small citrus growers in Florida are currently unable to sell their Valencias. Although Henry’s 12 acres of Valencias are ready to be picked — with a high Brix level and good pound solids — he has no market for his fruit. Henry is not the only grower currently …

Thermotherapy’s Effects on Fruit Drop, Yield and Quality

Tacy Callies Thermotherapy

By Megan Dewdney, Evan Johnson, Naweena Thapa and Michelle Danyluk In 2015, we started a large-scale project to determine if thermotherapy would be an effective huanglongbing (HLB) treatment for field trees. Some of the objectives were to determine effective temperature-time combinations for thermotherapy, which season gave optimal results for thermotherapy, and the effect on yield in subsequent years. TRIAL DETAILSComprehensive …

florida citrus

Florida Citrus Hall of Fame Inductees Chosen for 2019

Daniel Cooper Citrus, Industry News Release

Three distinguished leaders will be inducted into the Florida Citrus Hall of Fame at the 57th Citrus Celebration Luncheon at 11:30 a.m. on March 8 at Florida Southern College in Lakeland. Tim Hurner of Sebring, Richard J. Kinney (deceased), formerly of Lakeland, and Peter McClure of Port Saint Lucie will be honored at the luncheon. Hurner Tim Hurner is a fourth-generation Florida …

Research Update: Citrus Under Protective Screen

Tacy Callies CUPS

By Arnold Schumann, Timothy Ebert, Laura Waldo, Danny Holmes, Napoleon Mariner, Gary Test, Chris Oswalt, Rhuanito Ferrarezi and Ricardo Lesmes Two studies with citrus under protective screen (CUPS) were established at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) and Indian River Research and Education Center (IRREC) in 2013–14. The goal …

New Planting Options for Citrus Growers

Tacy Callies Varieties

By Fred Gmitter, Ed Stover, Randy Driggers, Greg McCollum and Jude Grosser The U.S. Department of Agriculture (USDA) Agricultural Research Service citrus breeding program has a long history of releasing successful scion and rootstock cultivars. There had been a 15-year lapse in creating new hybrids, and the recently released cultivars largely reflect breeding efforts that preceded the onslaught of HLB …

Cold-Hardy Citrus for North Florida

Tacy Callies Varieties

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 …

Pruning and Controlled-Release Fertilizer to Rehabilitate HLB Trees

Tacy Callies Nutrition, Production

By Tripti Vashisth and Troy Gainey Pruning is one of the oldest horticultural practices that changes the form and growth of a tree. The pruning process 1) adjusts tree shape and the ratio of framework to fruit-bearing shell of the canopy, 2) alters the shoot/root ratio and 3) changes the carbohydrate (food storage) status of the tree. Under Florida weather …

Update on Citrus Undercover Production Systems Research

Tacy Callies HLB Management

By Arnold Schumann, Laura Waldo, Alan Wright and Rhuanito Ferrarezi  Authors’ note: This article was written before Hurricane Irma passed through Florida. We are still assessing the full impact and implications of storm damage to both University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus undercover production systems (CUPS) facilities and will provide updates in future articles. Citrus …

Florida Citrus Commission Passes Emergency Rule

Daniel Cooper Citrus, Grapefruit, Industry News Release

The Florida Citrus Commission (FCC) held an emergency meeting on September 14 in response to a request for emergency rulemaking from the Florida Citrus Packers Association to approve rule 20ER17-2, addressing the Soluble Solids to Anhydrous Citrus Acid Maturity Standards for grapefruit and oranges for the 2017-18 season. The following emergency rule passed unanimously by the FCC: 20ER17-2 Grapefruit and Orange …

orange juice

What Is Happening to the Orange Juice Market?

Tacy Callies Economics

A historical perspective and current conditions are key to understanding what will happen to the orange juice market in the future if HLB-resistant trees are introduced. By Allen Morris Between 2001–02 and 2016–17, the Nielsen-measured retail U.S. orange juice market declined by 50 percent, Florida orange production declined by 70 percent and retail orange juice prices increased by 53 percent …

citrus crop forecast

Final U.S. Citrus Crop Forecast Down 17 Percent from Last Season

Daniel Cooper Citrus, Crop Forecast

Candi Erick, the agricultural statistics administrator with the Florida Department of Agriculture and Consumer Services’ Florida Agricultural Statistics Service, reports the final citrus crop forecast of the 2016-17 season. The United States all-orange forecast for the 2016-2017 season is down 2 percent from last month and down 17 percent from last season’s final utilization. The 2016-2017 Florida all-orange forecast released …