Both University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) speakers at a Nov. 28 winter weather workshop warned about the risk of evaporative cooling when using irrigation to protect citrus from freezing temperatures. Microsprinkler irrigation has been the main form of cold protection for Florida citrus for at least the last five decades. The need to understand evaporative …
U.S. Citrus Production in 2022–23: Winners and Losers
The U.S. Department of Agriculture National Agricultural Statistics Service’s (USDA/NASS) final estimates for the 2022–23 season show U.S. citrus production reaching 4.9 million tons, down 12% from 2021–22. This marks the lowest combined production levels for U.S. citrus in at least 50 years. The U.S. citrus crop was valued at $2.6 billion in 2022–23, 13.5% below the prior year’s value. …
Sneak Peek: December 2023 Citrus Industry
It’s no secret that Florida’s citrus industry has seen significant shrinkage since the advent of citrus greening in the state. In the December issue of Citrus Industry magazine, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) economist Ariel Singerman takes an in-depth look at the acreage attrition. He examines the figures by county over the past 20 years. …
Blood Oranges May Be Option for Cold-Hardy Region
Blood oranges could provide citrus growers with another variety to grow in the cold-hardy citrus region. But further research is needed to verify its effectiveness in the Southeast, says Ali Sarkhosh, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor. “We harvested those fruit in Quincy at the North Florida Research and Education Center. We still don’t …
Combination of Essential Oils and Kaolin to Control Psyllids
By Xavier Martini and Romain Exilien Despite intensive control efforts, the Asian citrus psyllid (ACP), the vector of Candidatus Liberibacter asiaticus, the bacteria causing citrus greening, remains the most devastating pest of citrus. The ACP typically relies on tactile, visual and odor cues to detect its host. By combining an irritant, a visual masking and a true repellent, University of Florida …
Snail Control and Research Update
Baits are currently the best tool for Bulimulus bonariensis snail management, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologists reported recently. Assistant professors Lauren Diepenbrock and Nicole Quinn also provided an update on snail research. Diepenbrock works at the Citrus Research and Education Center in Lake Alfred. Quinn works at the Indian River Research and Education Center …
OJ Break Focused on CRISPR and Emerging Pests
In mid-November, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center hosted an OJ Break educational program in Lake Alfred. Attendees were provided with research updates on CRISPR gene editing and emerging pests. Nian Wang, a UF/IFAS professor of microbiology and cell science, spoke on his work with CRISPR technology. He provided insight …
Prepare Now for the Winter Season
By Maegan Beatty As the cooler months start to arrive, it is important to protect citrus trees from overnight freezes and extreme weather conditions. Last December, the All In For Citrus podcast addressed what cold protection should look like for Florida citrus growers in an interview with Chris Oswalt, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus …
PIECES OF THE PAST: Paying It Forward
By Brenda Eubanks Burnette Florida citrus has long been part of holiday celebrations and eventually became more than just a recipe or side dish at meals. The citrus industry became a symbol of Florida’s agricultural prowess, and its importance to the state’s economy and culture was celebrated. The holidays bring out the best in people who are able to give …
All In For Citrus Podcast, November 2023
Michael Rogers, the director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, and some of his colleagues recently attended the Asian Citrus Congress in India. During the November All In For Citrus podcast, Rogers discusses what was learned and observed on the trip. While many of India’s citrus groves are small-scale …
Economist Provides Brazilian Citrus Update
Agriculture is the driving force in the Brazilian economy, and Brazil is a leading food supplier to the global market, economist Marisa Zansler told the Florida Citrus Commission (FCC) at its last meeting. Zansler is director of economic and market research at the Florida Department of Citrus (FDOC). She visited Brazil in August and provided the FCC with an update …
Planning Pointers for Cold-Hardy Citrus Production
Crop planning is an essential part of the citrus production process. What are you going to grow? Where are you going to market? How are you going to overcome HLB (huanglongbing or citrus greening)? John Chater, assistant professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, discussed the different factors that …
New Knowledge on Lebbeck Mealybug Can Aid Control
Lebbeck mealybug populations are not tied to flush production, entomologist Lauren Diepenbrock reported recently. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor also noted: Diepenbrock sampled lebbeck mealybug populations in commercial citrus groves in Central Florida. Analysis of the seasonal trapping data provided easily observable trends. Based on these trends, she offers the following initial …
Prolong the Health of Young Citrus Trees
By Fernando Alferez, Ute Albrecht, Ozgur Batuman, Jawwad Qureshi and Saoussen Ben Abdallah Individual protective covers (IPCs), which are psyllid-exclusion mesh bags, are increasingly being adopted to efficiently protect newly planted citrus trees from huanglongbing (HLB) infection. However, IPCs typically must be removed after two to three years due to tree growth. Early evidence indicates that brassinosteroids (Brs), a relatively …
TEMP Act Aims to Provide Freeze Insurance for Growers
A U.S. senator and Congress members from Florida have introduced legislation to direct the Risk Management Agency to research and develop a crop insurance policy to cover losses caused by cold exposure and freezes. Sen. Marco Rubio introduced the Temperature Endorsement for Multi-Peril Policies (TEMP Act). Representatives Scott Franklin, Darren Soto, Cory Mills and Greg Steube introduced companion legislation in …
Northern Hemisphere Citrus Production to Rise
The World Citrus Organisation (WCO) on Nov. 15 projected that Northern Hemisphere citrus production will hit 28.98 metric tons in 2023. That’s up 12.21% compared to the prior year and 1.48% higher than the four-year average. It also exceeds the WCO’s forecast of 24.35 million tons for the Southern Hemisphere. Oranges are forecast to account for 50% of Northern Hemisphere …
Returns From OJ Promotions Projected
Florida Department of Citrus (FDOC) promotions of orange juice (OJ) are projected to have produced a $2.23 return on investment for each dollar Florida producers paid to support the promotions, a University of Florida (UF) economist reported. Lisa House, UF professor and chair of the UF Food and Resource Economics Department, made that projection in a virtual presentation on Nov. …
Citrus Recovery Program Funding Allocated
Several scientific projects to be funded with $2 million the Florida Department of Citrus (FDOC) received from the state’s Citrus Recovery Program were approved by the Florida Citrus Commission (FCC). The Citrus Recovery Program funds came from the Florida Legislature this year. The funded projects include: Also utilizing funds from the Citrus Recovery Program, the FCC approved almost $1.05 million …
EPA Ban of Chlorpyrifos Overturned by Court
The federal Eighth Circuit Court of Appeals on Nov. 2 ruled the Environmental Protection Agency (EPA) failed to follow the law when it revoked chlorpyrifos tolerances — effectively banning the pesticide. “Its (EPA’s) decision was arbitrary and capricious … so we grant the petitions for review and vacate its order,” the court stated. See the court’s ruling here. The American …
HLB Treatments ‘A Mixed Bag of Results’
A variety of treatments Florida citrus growers are using for HLB have so far produced mixed results, according to observations reported by Highlands County Citrus Growers Association (HCCGA) President Aaron Nelson. In a recent association newsletter, Nelson wrote that many are anxious to see harvest data showing what effects the treatments have had over the past year. The treatments he …