Citrus Research and Education Center Director Michael Rogers says while much progress has been made in dealing with HLB, many growers now face economic woes because of high orange juice inventories. He discusses some decisions that growers facing those economic issues will have to make and offers some suggestions. “We’ve come a long way since HLB came to Florida,” Rogers …
Sneak Peek: January 2020 Citrus Industry Magazine
The January issue of Citrus Industry magazine offers management advice for controlling the most problematic pests found in Florida groves. While Asian citrus psyllids (ACP) remain the biggest challenge, there are other pests of concern that shouldn’t be overlooked. Grower Chip Henry discusses his successful use of a natural insect control option that both organic and conventional growers may want …
Niche Market and Dooryard Citrus for the HLB World
By Jude Grosser, Manjul Dutt and Fred Gmitter The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus improvement team at the Citrus Research and Education Center (CREC) has developed a broad citrus germplasm base. This provides opportunities to generate diverse, interesting and possibly lucrative selections with niche market and dooryard potential. Several such selections are showing reasonable …
UF Researcher Seeks Biological Control of ACP
In the latest All In For Citrus podcast, Ozgur Batuman talks about his research into biological control of the Asian citrus psyllid (ACP). Batuman is an assistant professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center. ACP control is necessary for management of citrus greening disease, or huanglongbing (HLB). Batuman’s …
CUPS Featured at Field Day
Growers already producing fresh citrus under protective screen (CUPS) were among approximately 30 attendees at a CUPS field day Dec. 12 at the Citrus Research and Education Center in Lake Alfred, Florida. Lead CUPS scientist Arnold Schumann with the University of Florida Institute of Food and Agricultural Sciences and other researchers described activities in the screened-in facility. Attendees saw much …
Inside Brazil’s Citrus Industry
By Stephen H. Futch and Rhuanito S. Ferrarezi Many changes have taken place in the Brazilian citrus industry over the past 20 years as growers battle pests, diseases and market challenges. Throughout this process, the industry has encountered difficulties but has continued to maintain production through innovative practices that are founded in science, economics and sustainability. This article provides an …
A Closer Look at CUPS-Grown Grapefruit
By Arnold Schumann, Ariel Singerman and Yu Wang Grapefruit production in Florida has been drastically reduced by huanglongbing (HLB) disease, from 40.9 million boxes in 2003–04 to 4.5 million boxes in 2018–19, according to the U.S. Department of Agriculture. Grapefruit varieties are particularly vulnerable to HLB due to cumulative losses from stunted tree growth, low fruit yield, high-percentage fruit drop, …
All In For Citrus Podcast, November 2019
The All In For Citrus podcast for November is packed with updates on various aspects of citrus production. Citrus Research and Education Center Director Michael Rogers tells how the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) helped a Washington Post reporter write a well-balanced article about the Florida citrus industry and HLB. Rogers points out that the …
CTV Remains a Threat With Sour Orange
Shortly before HLB was discovered in Florida in 2005, many trees on sour orange rootstock were lost to citrus tristeza virus (CTV), which is transmitted by the brown citrus aphid. Sour orange rootstock was extremely susceptible to CTV, so many growers stopped using the rootstock. “Switching to non-sour orange rootstock eliminated the danger from CTV decline,” University of Florida Institute …
California and Florida Collaborate on HLB Research
University of California, Riverside (UCR) professor Georgios Vidalakis recently provided an update on the state of California citrus for researchers in Florida. Vidalakis is a noted professor and Extension specialist in UCR’s Microbiology and Plant Pathology Department. Among other honors, he was recently named Presidential Researcher for Sustainable Citrus Clonal Protection. Vidalakis pointed out that California has benefited greatly from …
Aiming to Improve Production of Florida Grapefruit
(UF/IFAS) — Dinesh Phuyal, who is pursuing a master’s degree in horticultural sciences from the University of Florida’s College of Agricultural and Life Sciences, recently garnered a prestigious Yara North America Crop Innovation Scholarship. The award is Phuyal’s fourth academic honor this year for his efforts to improve Florida grapefruit tree size, fruit yield and fruit quality. Phuyal studies higher …
CUPS: Favorite Varieties to Grow
After five years of growing citrus under protective screen (CUPS), Arnold Schumann has named Ray Ruby grapefruit and Honey Murcott tangerine as his favorite varieties to grow in the system. Schumann is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher at the Citrus Research and Education Center (CREC) in Lake Alfred. He addressed the topic of …
Nutrition: What Growers Want to Know
A group of growers, production managers and researchers hopes to ensure future nutrition research funded by the Citrus Research and Development Foundation (CRDF) answers grower questions about nutrition. The dozen-plus members of CRDF’s Nutrition Working Group held their first meeting Oct. 30 at the Citrus Research and Education Center in Lake Alfred. The panel is about evenly split between grower …
Sneak Peek: November 2019 Citrus Industry Magazine
Asian citrus psyllids (ACP) are here to stay, and growers need multiple management methods for dealing with the deadly HLB disease this pest transmits to trees. The November issue of Citrus Industry magazine offers growers psyllid strategies they can use now as well as details on research investigating a biological way to knock down ACP. Several fresh citrus growers in …
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 …
Pest Update: Lebbeck Mealybug
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lauren Diepenbrock provided an update on the lebbeck mealybug pest at a recent Highlands County citrus growers’ meeting. The mealybug, first found in Highlands groves in June, feeds on and damages citrus, leading to fruit drop and crop loss. Diepenbrock reports that surveys conducted by the Florida Department of …
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 …
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 …





























