Postfreeze Recovery Recommendations for Citrus Trees

Tacy Calliesfreeze

Florida citrus growers hoping to expedite the recovery process for trees impacted by the late January/early February freeze event should pump the brakes and wait — at least until spring. That advice is from Muhammad Shahid, assistant professor of horticulture at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). He shared tree recovery recommendations with growers during …

director

Florida Citrus Show To Feature CRAFT Insights

Tacy CalliesCRAFT, Events, FCS24, Florida Citrus Show

The Citrus Research and Field Trial (CRAFT) Foundation has been a lifeline to Florida’s citrus industry in the battle against HLB. CRAFT’s programs provide incentives for new plantings and existing tree therapies in exchange for growers submitting data for those projects. In 2025, CRAFT received more than $100 million dollars from the state legislature to fund more cycles of the …

Snail Management

Planning Spring Snail Management

Tacy CalliesPests, Tip of the Week

By Lauren M. Diepenbrock Many citrus growers in Florida have been impacted by Bulimulus bonariensis (previously referred to as Bulimulus sporadicus) since the first reports of this pest in groves in 2020. This snail is an ongoing challenge and, with funding from the Citrus Research and Development Foundation, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has …

Psyllid Capture Rate Drops Again in Brazil

Tacy CalliesBrazil, Psyllids

The average capture rate of psyllids in traps distributed across 23 regions of the citrus-growing area of ​​São Paulo and the Southwest Minas Gerais Triangle in Brazil has fallen for the second consecutive year. The information provided by the Fundecitrus Psyllid Alert platform confirms a downward trend after the peak recorded in 2023. It indicates a scenario of lower pest …

HLB

Invaio and Fundecitrus Collaborate on HLB Solutions

Daniel CooperHLB Management

Invaio Sciences, Inc. recently announced a collaboration with Fundecitrus (Fund for Citrus Protection), a research organization based in Araraquara, Brazil. The partnership aims to accelerate the development and evaluation of novel solutions — particularly peptide-based technologies — for controlling huanglongbing (HLB), also known as citrus greening disease. The collaboration combines Invaio’s Biologicals by Design™ platform and Fundecitrus’ expertise in grove …

psyllid

Postfreeze Psyllid Populations Reduced

Daniel Cooperfreeze, Psyllids

Southeast citrus growers hoping that the Feb. 1 freeze would wipe out the Asian citrus psyllid (ACP) population are going to be disappointed. “What we do know about freezes is a lot of time they will reduce or delay the buildup of many of the populations of pests that we worry about,” said Lauren Diepenbrock, University of Florida Institute of …

CRDF

CRDF Board Funds Plant Transformation Projects

Daniel CooperCRDF

In January, the Citrus Research and Development Foundation (CRDF) board of directors took up several projects aimed at plant transformation to improve HLB disease resistance in plants. MANJUL DUTT The board voted to fund work by Manjul Dutt, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor of horticultural sciences, to graft the most promising non-genetically modified …

role

Study Highlights Soil pH Role in Citrus Tree Health

Daniel CooperSoil Health

A new study examines the critical role soil pH plays in determining citrus root development, nutrient absorption and overall tree health. It offers insights for growers facing declining production challenges due to biotic restraints such as HLB disease and abiotic stresses such as low or high soil pH. The study looks at citrus root morphology across a range of soil …

See the Seminar Program for the Florida Citrus Show

Tacy CalliesCitrus, Events, FCS24, Florida Citrus Show

The Florida Citrus Show is just a month away, scheduled for March 12. The event will be held at the University of Florida Institute of Food and Agricultural Sciences Indian River Research and Education Center and the U.S. Department of Agriculture-Agricultural Research Service U.S. Horticultural Research Laboratory in Fort Pierce. The seminar program offers a wealth of educational opportunities, and …

Citrus & Specialty Crop Expo

Citrus & Specialty Crop Expo to Offer an Enhanced Experience

Daniel CooperCitrus Expo, Events

Mark your calendar for the 2026 Citrus & Specialty Crop Expo, set for Aug. 12–13. The event is returning with several upgrades designed to improve the experience for citrus and specialty crop growers, exhibitors and industry partners. EXCEPTIONAL LOCATION The 2026 Expo is relocating back to Fort Myers, Florida, but at a new location. The event will be held at …

Millennium Block

Millennium Block HLB Findings Expected This Year

Daniel CooperHLB Management, Research

Fruit harvested at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Millennium Block from 2022 to 2026 will help determine the effectiveness of potential solutions to HLB. This season’s fruit will be harvested through early February, and research results are expected later this year.  The Millennium Block was planted in 2019 at the UF/IFAS Indian River Research …

Florida’s

Florida’s Replanting Era: What it Means for OJ Demand

Daniel CooperFlorida Department of Citrus, Orange Juice, planting

By Marisa Zansler Over the past year, there has been a discreet change occurring in the orange juice (OJ) aisle amid supply shortages. Some of the familiar OJ cartons have changed, not in name but in composition. With Florida’s smaller crop and limited global OJ supplies, Florida’s processors have stretched that limited supply by offering more products that blend OJ …

patent

Tango Mandarin’s Plant Patent Expires

Daniel CooperMandarins, Varieties

The University of California, Riverside (UCR), which developed the Tango mandarin in 2006, recently reflected on the variety’s success and noted that its patent has expired. Tango has generated more than $70 million in cumulative economic value for UCR. The virtually seedless, easy-peeling fruit has been marketed under brand names like Cuties and Halos. Now that Tango’s plant patent has …

flowering

Expected Freeze Effect on Flowering

Daniel Cooperfreeze, Production

Tripti Vashisth, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor of horticultural sciences and citrus Extension specialist, was part of a question-and-answer session that the UF/IFAS Statewide Citrus Team held for growers last week prior to the weekend’s winter storm. She talked about how low temperatures and high winds could impact citrus flowering. She expressed hope …

Citrus Show

Elevate Your Knowledge at the Florida Citrus Show

Daniel CooperEvents, FCS24, Florida Citrus Show

The Florida Citrus Show has an excellent day of education and networking planned for citrus and specialty crop growers. One of the most timely talks will cover post-freeze production considerations for citrus growers. Learn what Extension resources are available to growers to assist in their recovery efforts. Citrus Research and Field Trial (CRAFT) programs have been a lifeline to growers …

drain

Draining Water From Groves Critical After Freeze

Daniel CooperCold Hardy, freeze, Water

Cold-hardy citrus producers are now coping with the aftermath of last weekend’s winter storm. Water was a key tool that growers used in efforts to protect their crop from sub-freezing temperatures and blistering wind chills. Now, they need that water to drain as quickly as possible, says Lindy Savelle, executive director of the Georgia Citrus Association. “You don’t want to …

fruit

Impacts of Freeze on Fruit Quality

Daniel Cooperfreeze

Florida citrus growers are in the middle of harvest season. That means plenty of fruit was still left on the trees prior to last weekend’s winter storm that brought freezing temperatures and dangerous wind chills to the state’s citrus-producing regions. Growers are assessing the negative impacts following the freeze, but they may not know the extent of damage for a …

silicon

When and How To Use Silicon for Freeze Protection and Recovery

Daniel Cooperfreeze, Nutrition, Tip of the Week

By Muhammad A. Shahid and Davie Kadyampakeni Silicon (Si) is getting a lot of attention from citrus growers as a tool to help trees handle stress, especially during cold and freeze conditions. It toughens up plant tissues, strengthens cell walls and helps trees better handle stress when it is applied at the right time. BEFORE FREEZE The most important thing …