The fate of pesticides By Juanita Popenoe Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. I have had several problems brought to me recently that were caused by pesticide residues in …
Improving Indian River Citrus Production
At Citrus Expo in August, Rhuanito “Johnny” Ferrarezi reported on research into planting densities, irrigation and fertilization that might allow growers to better produce oranges in the Indian River area. He is a researcher with the University of Florida Institute of Food and Agricultural Sciences at the Indian River Research and Education Center in Fort Pierce. The Indian River region …
Putting Fresh Fruit to the Test
Quality and shelf life were evaluated for new fresh mandarin and sweet orange selections. By Mark A. Ritenour, Cuifeng Hu, Yu Wang and Fernando Alferez New fresh citrus fruit selections continue to be developed and released by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and the U.S. Department of Agriculture. In addition, promising new varieties are …
IPCs for HLB Prevention in Young Trees
By Fernando Alferez, Susmita Gaire, Ute Albrecht, Ozgur Batuman, Jawwad Qureshi and Mongi Zekri Controlling the Asian citrus psyllid vector of huanglongbing (HLB) is critical, especially in young trees. Reducing HLB incidence is essential for tree survival and productivity under current endemic conditions. Individual protective covers (IPCs) are a novel strategy based on psyllid exclusion by means of a protective …
Production Guide: What’s New
The three editors of the new Florida Citrus Production Guide recently told growers at a meeting in Sebring what’s new in the guide this year. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) produced the guide. Megan Dewdney, a UF/IFAS plant pathologist, addresses new information provided about diseases. New items include the addition of a chemical for …
Citrus Growers Expected to See Production Bump
Florida’s struggling citrus industry is projected to see a 3.3 percent increase in production in the newly started growing season. The U.S. Department of Agriculture, in its first citrus forecast for the 2019-2020 season that will run through July, projected Florida growers will produce enough oranges to fill 74 million of the industry-standard 90-pound boxes, which would top the 71.6 …
Newly Planted Trees and HLB
Newly planted trees need to have root systems that are as established, robust and healthy as possible before contracting HLB, Evan Johnson told growers at Citrus Expo. That’s because HLB takes out a tree’s fibrous root system and causes dieback of the structural root system. Having strong root systems from the start will increase the productive life of trees, the …
A Growth-Enhancing Pest Management Option
By Christopher Vincent Particle films can both increase tree growth and reduce Asian citrus psyllid populations. University of Florida (UF) research has found particle films delay infection with the CLas bacterium, which causes HLB. They also enhance growth rates and yield. Particle films do have limitations to efficacy, including being washed off in frequent or heavy rains. Overall, particle films …
New Grapefruit Rootstock, Scion Experiment
The world’s peerless grapefruit grows in the Indian River Citrus District. Balanced with sugar and tart, and a thin rind for easy peeling, the fruit is sold mostly for export to European and Asian markets, where it is a high-price delicacy. But the once-thriving industry is in decline, and a plant pathogen is present in all of the state’s grapefruit …
Economics of CUPS and IPCs
At Citrus Expo, economist Ariel Singerman discussed the economics of producing citrus under protective screen (CUPS) and covering young trees with individual protective covers (IPCs). The primary purpose of both strategies is to exclude HLB-spreading Asian citrus psyllids. Singerman is with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Singerman calculated that a CUPS grower who insures …
Observations on the 2019 Brazilian Citrus Industry
By Thomas Stopyra, Certified Crop Advisor Note: The following report is based on data gathered from a variety of sources and reflects the personal opinion of the author. It should not be used as a basis for buying, selling or speculating futures or any other business decisions regarding agricultural enterprises or commodities. The recent estimate published by Fundecitrus for the …
Florida to Get 1,500 New Acres of Grapefruit
In recent years, the iconic Florida citrus industry has been faced with challenges from devastating citrus greening to major hurricanes pummeling the state’s fruit groves. But industry members are doubling down on their commitment to ensure citrus and juice products remain synonymous with the Sunshine State. Peace River Citrus Products and Scott Family Companies and its partners announced they will …
UF/IFAS to Add Citrus Plant Improvement Specialist
Many citrus growers want to replant their groves that are withering because of greening. But they need field data to know which varieties to plant. Gathering that information takes time. As a rule, though, it takes 15 to 20 years to develop a new citrus variety and get data on how it will perform in the field before it is …
All In For Citrus Podcast, September 2019
September’s All In for Citrus Podcast includes some exciting updates from University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers. First, Michael Rogers, director of the UF/IFAS Citrus Research and Education Center (CREC), discusses several topics. Included are the new Florida Citrus Production Guide, tree planting decisions, fruit displays and the planned hiring of a new horticulturist at …
Sugar Belle® Shows Potential in Orange Juice Processing
By Yu Wang, Charles Sims, Zhifeng Gao, Lisa House, Frederick Gmitter and Jude Grosser The citrus industry has faced significant declines in both production and consumption during the huanglongbing (HLB) era. For example, Florida orange production has dropped about 70 percent over the last two decades. In the absence of effective interventions, the spread of HLB will continue to reduce the …
Citrus Expo Presentations Now Available
The 28th annual Citrus Expo saw great success as growers piled into the Lee Civic Center on Aug. 14–15 in North Fort Myers, Florida. Growers experienced a dynamic trade show and a new hands-on session. The seminar program, titled “Growing Stronger,” featured presentations on the latest research from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Many …
CRAFT Application Period Opening Soon
The Citrus Research and Field Trial Foundation Inc. (CRAFT Foundation) board of directors, technical working group (TWG), staff and a legion of volunteers have been working at top speed throughout the summer finalizing the formation, organization and funding of the CRAFT program. The first priority for the CRAFT Foundation staff and board of directors has been securing all available funding …
Hurricane Preparedness for Citrus Groves
By Mongi Zekri, Robert E. Rouse, and Jonathan H. Crane Each year, growers look forward to the rainy season because it helps their young trees grow fast and their mature trees produce good crops. Growers hope for good distribution of rains following the usual dry spring season. However, along with the anticipation of the rainy season, there is also the …
Citrus Crop Value Up as Farmland Shrinks
Florida citrus production and crop value is up from a year ago, when the industry was trying to recover after being hit hard by Hurricane Irma. But the industry continues to bleed acreage in the state, according to numbers released Aug. 28 by the U.S. Department of Agriculture (USDA). The federal agency’s commercial citrus inventory recorded 430,601 acres spread across …
Steven Callaham: Integrity, Intelligence and Innovation
By Ernie Neff It didn’t take long for senior managers at Dundee Citrus Growers Association (CGA) to recognize they had acquired a special talent when Steven Callaham was hired in 1999. Callaham came from Lake Wales Citrus Growers Association, where he had worked for four years after college. He made the move because the Lake Wales cooperative closed its packinghouse …