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 …

Griffin

OLL Orange Varieties Revisited at Griffin’s Grove

Daniel CooperEvents, Rootstocks, Varieties

Last September, Jason Griffin hosted a field day in his citrus grove near Lake Alfred in partnership with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). The event was well attended, and some growers requested a second field day when the crop was closer to harvest. Griffin and UF/IFAS hosted a second event in late January as …

top

Top Florida Varieties and Rootstocks

Daniel CooperFlorida, Rootstocks, Varieties

Valencia SPB 1-14-19 remained the most propagated Florida citrus variety for at least the fourth straight year in 2024–25, according to the Florida Department of Agriculture and Consumer Services (FDACS). The FDACS Division of Plant Industry’s Bureau of Citrus Budwood Registration recently released the Citrus Budwood Annual Report 2024–25. The report is a highly detailed 44-page document. US-942 returned as …

February

Sneak Peek: February 2026 Citrus Industry

Daniel Cooperlemons, Sneak Peek, Survey

The February issue of Specialty Crop Grower magazine features Part 2 of results from the Citrus State of the Industry Survey. Florida growers reveal details on their planting intentions. Find out what varieties and rootstocks they’re selecting, what percent are growing citrus under protective screen, and other insights. In the digital edition of the magazine, readers can find bonus coverage …

Florida Citrus Show

Join the Fun at the Florida Citrus Show

Daniel CooperEvents, FCS24, Florida Citrus Show

The 2026 Florida Citrus Show provides great educational opportunities for both citrus and small fruit and vegetable growers. The event is also an excellent opportunity to network with peers and learn about the latest goods and services available from the industry. The trade show portion of the event will be presented again this year in a tailgate format, which has …

Nutritional Needs of HLB-Affected Trees

Tacy CalliesCitrus, Nutrition, Tip of the Week

By Davie Kadyampakeni, Alisheikh Atta and Edilaine Traspadini Citrus trees require optimal nutrition to be able to maintain high fruit yields, canopy size and good root health. Adequate nutrition supports not only yield and growth, but also tree resilience to disease and environmental stress, which is particularly important in HLB-affected groves. A balanced mix of macronutrients and micronutrients is needed …

Argentina

Argentina Orange and Tangerine Forecasts Issued

Daniel CooperCrop Forecast, International

Fresh orange production in Argentina is forecast at 680,000 metric tons (MT) for 2025–26 by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS). That’s an 80,000 MT increase from the previous year. Argentine tangerine production is expected to reach 240,000 MT in 2025–26, based on favorable weather. That’s up from 180,000 MT the previous year. PLANTED AREA The …

fresh

CITRUS NURSERY SOURCE: Increased Interest in Fresh Utilization

Daniel CooperCitrus Nursery Source, Fresh

By Peter Chaires Florida breeding programs have been largely focused on the juice stream in recent years. And for good reasons. Retaining the remaining processing capacity and infrastructure is of paramount importance to support Florida’s orange juice industry. Numerous sweet oranges have been released in hopes of achieving incremental improvements in HLB tolerance while improving juice quality. Likewise, there has …