Growers Anxious as Hurricane Approaches

Jim Rogers hurricane, Weather

Citrus producers in South Georgia, North Florida and East Alabama are on “pins and needles” this week, according to grower Kim Jones. While the crop is about a month away from harvest, it is extremely vulnerable to Hurricane Ian. Citrus production in all three states is susceptible to the high winds and excessive rainfall the storm is expected to bring. …

HLB Tolerance Data Expected in Early 2023

Jim Rogers Rootstocks, Varieties

Conclusive data on trials in the Millennium Block, expected in early 2023, may reveal which of more than 5,500 trees can tolerate HLB, researchers say. The Millennium Block is at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) in Fort Pierce. IRREC Director Ronald Cave said the 20-acre grove, established …

CRAFT Adds Assistant Program Manager

Jim Rogers CRAFT

The Citrus Research and Field Trial (CRAFT) Foundation recently hired Tina Buice as assistant program manager. The Highlands County resident had previously worked for nearly two decades at the Florida Department of Agriculture and Consumer Services Division of Plant Industry (FDACS DPI). She was most recently an environmental specialist in the FDACS DPI Avon Park office. Through her work with …

Canker Resistance Progress May Help With HLB

Jim Rogers Breeding, Diseases

A team of researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has successfully identified the CsDMR6 gene, which impacts a citrus tree’s reaction to the citrus canker pathogen. Zhanao Deng and Fred Gmitter, both professors and plant breeders, are members of that team.  By editing the CsDMR6 gene in the plant’s DNA to interfere with …

Fruit Displays Offer Growers Opportunities to Give Feedback

Jim Rogers Events, Tip of the Week, Varieties

By Peter Chaires Each season, variety displays and field days offer growers, packers, processors, nurseries, marketers, flavor companies and other interested parties an opportunity to experience the latest developments in Florida’s citrus breeding programs. Each team takes its own approach to these events. Some are more focused on fruit displays and sampling, some have field tours, and others include scientific …

HLB and Canker Incidence Increasing in Brazil

Jim Rogers Brazil, Diseases

The average incidence of HLB rose from 22.37% in 2021 to 24.42% in 2022 in Brazil’s citrus belt, an annual survey by Fundecitrus shows. That’s an increase of 9.16%. In the regions of Brotas, Limeira and Porto Ferreira, where the incidence was already high in previous years, HLB increased to even more worrying levels of 49.41%, 70.72% and 74.05%, respectively. …

Sneak Peek: October 2022 Citrus Industry

Jim Rogers Sneak Peek

The October cover story in Citrus Industry magazine is a Q&A with Florida Citrus Mutual’s new leader. While Matt Joyner is new to the role of Mutual executive vice president/chief executive officer, he is not new to the association or the citrus industry. Learn about how his experience has uniquely prepared him for the position. Joyner discusses his goals and …

CUPS Update From the Citrus Research and Education Center

Jim Rogers CUPS, HLB Management, Research

By Arnold Schumann, Laura Waldo, Chris Oswalt, Napoleon Mariner, Timothy Ebert, Perseveranca Mungofa, Shankar Shrestha and Laura Cano-Castro Florida grapefruit production for the 2021–22 season was 92% less than in 2003–04, which was prior to the arrival of huanglongbing (HLB) disease [Source: U.S. Department of Agriculture National Agricultural Statistics Service, (USDA NASS)]. The decrease in Florida tangerine production for the …

When Are Cover Crops Profitable?

Jim Rogers Cover Crops, Economics, Research

At 200 boxes per acre, cover crops can be profitable in Valencia orange production, according to a Citrus & Specialty Crop Expo presentation. Tara Wade and Shourish Chakravarty prepared the presentation. Wade is an assistant professor, and Chakravarty is a post-doctoral associate, both at the University of Florida Institute of Food and Agricultural Sciences Southwest Florida Research and Education Center. …

New Sugar Substitutes Found in Citrus

Jim Rogers Flavor, Research

Researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have discovered new, natural sweeteners in citrus for the first time. This finding opens opportunities for the food industry to produce food and beverages with lower sugar content and lower calories while maintaining sweetness and taste using natural products. Yu Wang, associate professor of food science at …

All In For Citrus Podcast, September 2022

Jim Rogers All In For Citrus Podcast

As the 2022 citrus harvest gets underway, All In For Citrus podcast host Frank Giles catches up with the directors of three University of Florida Institute of Food Agricultural Sciences (UF/IFAS) research and education centers. The directors discuss how the citrus crop is looking in their areas as well as key research projects underway at their facilities. Michael Rogers, director …

How Different Techniques Hold Up to Diseases

Jim Rogers Citrus Expo, Diseases, IPCs

How well reflective mulch, kaolin clay and individual protective covers (IPCs) hold up to HLB, canker and greasy spot diseases was researcher Megan Dewdney’s topic at the 2022 Citrus & Specialty Crop Expo. Dewdney is a University of Florida Institute of Food and Agricultural Sciences associate professor of plant pathology at the Citrus Research and Education Center.  The research project …

Searching for Sweet Solutions

Jim Rogers Orange Juice, Research

By J. Scott Angle, jangle@ufl.edu, @IFAS_VP Just as HLB can affect fruit flavor, so can our numerous innovations to manage HLB. Yu Wang works to make sure our solutions are sweet. When the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hired her as a flavor chemist seven years ago, Wang worked primarily with breeders. Her objective was …

Support for HLB Product Label Requests

Jim Rogers Pesticides

Florida Citrus Mutual (FCM) has been working with product registrants to gather industry support for two 24(c) label requests being presented to the Florida Department of Agriculture and Consumer Services (FDACS). REMEDIUM TIThe first request, from TJ BioTech, is related to the use of ReMedium TI via injection in citrus trees suffering from citrus greening. Research has proven oxytetracycline injection …

California Navel Orange Forecast Up

Jim Rogers California Corner, Production

The initial 2022–23 California navel orange forecast is for 76 million cartons, up 19% from the previous year. Of the total navel orange forecast, 73 million cartons are estimated to be in the Central Valley. Cara Cara variety navel orange production in the Central Valley is forecast at 8 million cartons. The Sept. 12 forecast was issued by the California …

FAWN Expansion Underway

Jim Rogers Tip of the Week, Weather

By Rick Lusher The University of Florida Institute of Food and Agricultural Sciences Florida Automated Weather Network (FAWN) is a great resource for citrus growers. Its mission is to leverage timely, reliable and accurate weather data in support of effective agricultural decision-making and stewardship of natural, human and fiscal resources. In addition to weather information accessible in multiple databases, there …

Fresh Oranges on a tree.

The Role of Plant Growth Regulators in Citrus

Jim Rogers PGRs

Multi-county citrus Extension agent Ajia Paolillo discussed the role of plant growth regulators (PGRs) in groves in a recent Extension newsletter. She cited University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturists Tripti Vashisth and Fernando Alferez as sources. Here’s a summary of Paolillo’s article: GIBBERELLIC ACIDGibberellic acid (GA) is one of the PGRs used in citrus. It …

Pest Incidence and Management in CUPS

Jim Rogers CUPS, Pests, Research

By Jawwad A. Qureshi and Salman Al-Shami The citrus under protective screen (CUPS, Figure 1) system is designed so citrus can grow inside screened enclosures to protect it from huanglongbing (HLB) and the Asian citrus psyllid (ACP, Diaphorina citri). ACP is the primary vector of the pathogen responsible for causing HLB, known as citrus greening disease. This vector-pathogen combination is …