The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is asking fruit growers in North Florida, Alabama and Georgia to take a survey about crop biostimulants. UF/IFAS will use the results to better help those growers with the use of biostimulants and direct future research and Extension education programs. Those participating in the anonymous survey are asked to …
Farm Bill to Focus on Climate Change and Sustainability
The 2023 Farm Bill was one of the major themes of the recent Florida Agricultural Policy Outlook Conference held at the University of Florida’s Mid-Florida Research and Education Center in Apopka. While in the early stages, discussions are already underway for next year’s farm bill. The federal legislation will lay out agricultural policy for the following five years. The direction …
U.S. Lemon, Grapefruit and Tangerine Outlook
Lemons are the only U.S. citrus commodity forecast this season to exceed last season’s production levels, the U.S. Department of Agriculture’s Economic Research Service reported recently. At a projected 976,000 tons, lemon production is expected to be 10% higher than last season. Ninety-four percent of lemons commercially grown in the United States are from California. Despite the higher domestic production, …
Quantifying Brazilian Citrus Carbon Stocks
Fundecitrus and Embrapa (Brazilian Agricultural Research Corporation) recently began a joint effort to quantify carbon stocks in the citrus belt of São Paulo and Minas Gerais. The project receives funding from Innocent Drinks. The company’s Farmers Innovation Fund offers financial support for projects that aim to reduce carbon in agriculture and inspire farmers to adopt good practices. The work in …
A Challenging Harvest Season for Alico
The current citrus harvest season “has been a challenging one for Alico,” the company stated in a late March press release. “In addition to a harvest season that was anticipated to produce less fruit than in the prior year, many of the state’s citrus groves, including Alico’s citrus groves, were impacted by a freeze event in late January 2022.” Nearly …
Final Forecast for Brazil’s 2021–2022 Citrus Season
According to Fundecitrus and its cooperators, the final 2021–2022 orange crop for the São Paulo and West-Southwest Minas Gerais citrus belt in Brazil is 262.97 million boxes. This final figure was 10.61% smaller than the initially expected volume published in May 2021, corresponding to a significant crop loss of 31.20 million boxes. This was an “on year” for the alternate-bearing, …
Phosphorus Recommendations and Soil pH Amendments
By Kelly T. Morgan and Davie Kadyampakeni Most information provided in the 2020 3rd edition of Nutrition of Florida Citrus Trees is still sound for healthy citrus trees under Florida production conditions. Past information on nutrients, application methods, leaf and soil sampling, and irrigation scheduling are also effective for management of huanglongbing (HLB)-affected trees. However, research conducted since HLB was …
April Citrus Forecast: Florida Down, California Up
Florida’s Valencia orange crop forecast was cut by 13%, and the state’s grapefruit crop projection was trimmed by 8% in the April 8 forecast by the U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service. The Valencia crop projection was reduced by 3 million boxes, to 20 million boxes. Final fruit size is below the minimum, requiring 273 pieces of …
Working With Citrus Growers to Select New Varieties
John Chater joined the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) in January as an assistant professor of horticultural sciences. His mission is to act as a conduit between citrus plant breeders and growers to find fits for new rootstock and scion selections. Chater’s love of plants was inspired by his grandfather who was a plant breeder …
Dealing With Diaprepes Root Weevils
By Ajia Paolillo Managing diaprepes root weevils in the grove is essential for root health and overall tree health. The most concerning root weevil for citrus growers is Diaprepes abbreviatus. Diaprepes larval feeding causes significant injury and damage to citrus root systems. LIFE CYCLE AND FEEDING Let’s begin with the life cycle stages of the diaprepes root weevils. Adults emerge …
U.S. Orange Juice Output to Hit 50-Year Low
Total U.S. orange juice (OJ) production in the current 2021–22 season is forecast at 286 million single-strength equivalent (SSE) gallons, the U.S. Department of Agriculture’s Economic Research Service reported recently. If realized, this volume will be the lowest in more than 50 years. To compensate for lower production, U.S. OJ imports are expected to increase over last year, reaching more …
Gibberellic Acid Not Recommended in Spring for HLB Trees
By Tripti Vashisth Recent research has shown benefits of gibberellic acid (GA) application (monthly from September to January) in improving yield and canopy density of HLB-affected trees. These findings have caught the attention of Florida citrus growers. Many have indicated that they are applying GA in their groves as per the University of Florida Institute of Food and Agricultural Sciences …
Nutritional Lessons Learned From the Field and in the Wild
By Brad Turner In the 1970s, the majority of my family’s groves in Hillsborough, Polk and Hardee counties remained on a 25-foot by 25-foot setting or wider. Most of these “old school” blocks received several light cultivations in both directions, two fertilizations and two foliar sprays per season. These groves contained some of the most grand and bountiful trees in …
Citrus Commission Learns About HLB-Tolerant Trees, Other Research
At the Florida Citrus Commission meeting earlier this month, a federal scientist outlined an eight-step action plan for research and development of heirloom orange trees that appear to be tolerant to HLB. Brian Scully, director of the U.S. Department of Agriculture’s (USDA) Horticultural Research Laboratory, discussed the Donaldson and Tobias trees at USDA’s Whitmore Foundation Farm. A third tree is …
Extension Agents Still Seeing Damage From Freeze
It often takes time for the damage associated with freeze events to manifest in citrus. That was the case for the late January freeze in Florida. While some growers escaped fairly unscathed, others suffered significant damage. The damage began to show in the U.S. Department of Agriculture’s March citrus crop forecast. The agency lowered expected production of Florida oranges this …
Sneak Peek: April 2022 Citrus Industry
Increased attention on nutrition has become part of the overall strategy for managing HLB. The April issue of Citrus Industry magazine includes several articles on nutrient management designed to help growers keep trees productive in the HLB era. Mandarin growers will want to take note of new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research on how …
How to Reduce Bingo Tree Loss to Stem Dieback
By Christopher Vincent, Megan Dewdney and Liliana Cano Bingo mandarin hybrid is a variety with many promising characteristics, but it brings specific challenges to profitable production. One challenge identified early in the push to plant Bingo was stem dieback that led to tree loss. After looking into this problem for the past four years, University of Florida Institute of Food …
Battling Black Spot
By Megan Dewdney Editor’s note: This article originally stated that citrus black spot was in Hardee County. It should have said Hendry County, and has now been corrected. Citrus growers in Florida continue to battle new pests and diseases. They have been learning to manage citrus black spot for the last 12 years. The disease is still localized mainly in …
Florida Research Order Referendum Slated for May
Florida citrus growers will be asked to vote in a May referendum whether to maintain the Florida Research Order. The order was established in 1992 to support efforts by the industry — through the creation of the Florida Citrus Production Research Advisory Council (FCPRAC) — to develop solutions to production challenges. The research order has a six-year cycle and is …
OJ Is Half of Household Juice Purchases
Orange juice (OJ) recently accounted for more than half of the fruit juice purchased by households, Florida Department of Citrus (FDOC) economist Marisa Zansler told the Florida Citrus Commission on March 16. Citing a report on the Household Purchase Dynamics in the Beverage Category, Zansler added that grapefruit juice represented only about 1.5% of fruit juice sales. All fruit juice …





























