water management

Optimize Citrus Water Management

Daniel CooperIrrigation, Tip of the Week, Water

By Edwin Gutierrez-Rodriguez and Bosques Jonael Efficient water use in citrus production, like other fruit tree crops, goes far beyond simply turning on the irrigation system. It’s a strategic practice that affects tree health, fruit quality and long-term sustainability, making it a smart agricultural practice. Some key tips to optimize your water management are: Remember, water is also a signal, …

photoperiod

Photoperiod and Citrus Cold Tolerance

Daniel Cooperfreeze, Research

Nazneen Qureshi, a University of Florida (UF) graduate research assistant, is investigating how photoperiod — the amount of light a plant receives each day — can help citrus fruit tolerate cold weather.  Qureshi’s research is done alongside UF Institute of Food and Agricultural Sciences (UF/IFAS) Assistant Professor Muhummad Shahid. The research looks at whether the amount of light a plant …

irrigation management

Irrigation Management for Improved Citrus Production

Daniel CooperIrrigation, Tip of the Week

By Davie M. Kadyampakeni and Alisheikh A. Atta The conventional four Rs for nutrient management are right source, right place, right rate and right time. This approach allows growers to synchronize nutrient supply with crop demand, enhance tree health and fruit yield, and abate economic costs and environmental losses.  In contemporary farming systems in Florida citrus production, considering a fifth R …

benefits

Silicon Benefits Citrus

Daniel CooperCitrus Expo, Nutrition

A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher recently highlighted a number of benefits from using silicon as a nutrient for citrus. Muhammad Shahid, assistant professor at the North Florida Research and Education Center, presented silicon research findings at the Citrus & Specialty Crop Expo in August.   According to Shahid, silicon is categorized as a plant …

hall of fame

Florida Citrus Hall of Fame Announces 2026 Inductees

Daniel CooperCitrus

The Florida Citrus Hall of Fame Selection Committee has announced the inductees for the Class of 2026: Brenda Eubanks Burnette, Kristen Carlson, the late James “Doc” Redd and L.W. “Pete” Timmer. They will be inducted into the Hall of Fame on March 27, 2026, at the George W. Jenkins Fieldhouse at Florida Southern College in Lakeland. Burnette is being honored …

planting method

Video Shows Citrus Planting Method Has Many Benefits

Daniel Cooperplanting, Texas

Texas A&M University citrus scientists who developed a successful planting method to combat diaprepes root weevil found that the method also offers numerous other benefits. In 2013, researchers Mamoudou Setamou and Olufemi Alabi were looking for an effective non-chemical method to physically block the circular foliage-to-underground lifecycle of diaprepes. The pest was attacking citrus roots and killing trees. Their solution …

citrus research

CRDF Considers RFPs on Citrus Juvenility

Daniel CooperCitrus, CRDF

The Citrus Research and Development Foundation (CRDF) held its board of directors meeting on Sept. 30 in Lake Placid, Florida. During the meeting, the board reviewed recommendations from the CRDF Research Management Committee. “We had a productive meeting and addressed several key issues,” said CRDF Chief Operating Officer Rick Dantzler. “CRDF issued a Request for Proposals (RFPs) to explore methods …

blood oranges

Blood Oranges Could Be Profitable Option for Cold-Hardy Citrus Producers

Daniel CooperCold Hardy

Blood oranges may be an enticing fruit to grow for cold-hardy citrus producers in North Florida, South Georgia and South Alabama. Muhammad Shahid, assistant professor of horticulture at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), highlighted his blood orange research during the Cold-Hardy Citrus Field Day and Workshop at the North Florida Research and Education Center …

genetic

Improving Citrus Using Genetic Tools

Daniel CooperBreeding

By Manjul Dutt Editor’s Note: This is the first in a series of two articles on plant improvement. Next month will feature the timeline for CRISPR-developed trees. Traditional methods for improving citrus, such as crossbreeding different varieties, can be time-consuming due to the creation of a random mix of genes from both parents through a process called genetic introgression, leading …

citrus production

Spain’s Citrus Production to Hit 16-Year Low

Daniel CooperCrop Forecast, International

Spain’s Ministry of Agriculture, Fisheries and Food has forecast national citrus production of 5.44 million tons for the 2025–26 season, which began Sept. 1. That’s 10.7% lower than last season’s production and the lowest production level in the last 16 years.  The decline is mainly due to: Oranges, small citrus fruit and lemons are expected to see significant declines, while …

October

Sneak Peek: October 2025 Citrus Industry

Daniel CooperSneak Peek

Breeding efforts to develop citrus trees resistant to HLB are well underway. But how long does the process take before trees are available to growers? Manjul Dutt, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor, addresses this question and more in the Citrus Industry section of the October issue of Specialty Crop Grower magazine. His article …

diagnostic

Plant Diagnostic Facilities for Georgia Citrus Growers

Daniel CooperDiseases, Georgia

The University of Georgia (UGA) has disease labs and clinics to help citrus producers determine what diseases are impacting their trees. Jonathan Oliver, UGA assistant professor and small fruits pathologist, highlights the diagnostic facilities that growers can take advantage of. “We have a lab in Tifton, the Plant Disease Clinic, that can accept samples from commercial citrus,” Oliver said. “We …

crop forecast

First Citrus Crop Forecast of the Season Is Oct. 9

Daniel CooperCrop Forecast

After low yields in recent years due to hurricanes and HLB, Florida citrus growers are eager to see what the crop forecast will look like for the 2025–26 season. There is some optimism that the cumulative effects of oxytetracycline trunk-injection treatments may improve production this season. Growers will learn what the initial 2025–26 forecast is when the U.S. Department of …

incidence

Citrus Greening Incidence Increasing in Brazil

Daniel CooperBrazil, HLB Management

Fundecitrus’ annual survey of citrus greening incidence shows that in 2025 the disease affected 47.63% of orange trees in the Citrus Belt of São Paulo and the Triângulo/Southwest Minas Gerais region. This represents a 7.4% increase compared to 2024, when the incidence was 44.35%. SLOWER RATE OF INCREASE However, for the second consecutive year, a slowdown in the rate of …

legislative session

Grower Recognizes Citrus Achievement Award Winner

Daniel CooperAwards

Editor’s note: This is the first installment of four articles honoring Ben Albritton, the 2025 Citrus Achievement Award winner. With the 2024–25 citrus season complete, growers are now turning their attention to the coming year. That comes with a new sense of optimism as HLB therapies appear to be improving overall tree health and turning quality and production numbers in …

varieties

Florida Citrus Commission Exercises Rights to Varieties

Daniel CooperFlorida Citrus Commission, Florida Department of Citrus, Varieties

The Florida Citrus Commission (FCC) on Sept. 17 approved a Florida Department of Citrus (FDOC) request to exercise the right to eight new varieties from the Florida Foundation Seed Producers (FFSP). These varieties were developed by the University of Florida Citrus Research and Education Center Citrus Breeding Program. The FCC, which governs the FDOC, will retain exclusive rights to the varieties …

podcast

All In For Citrus Podcast, September 2025

Daniel CooperAll In For Citrus Podcast

Varieties and rootstocks are the topics of the September episode of the All In For Citrus podcast. Earlier this month, a field day was held in Jason Griffin’s grove near Lake Alfred, Florida. He is collaborating with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) to evaluate several rootstock/scion combinations developed by UF/IFAS citrus breeders. Griffin has …

replanting

Replanting Is the Next Chapter for Florida Citrus

Daniel CooperFlorida Department of Citrus

By Marisa L. Zansler Two decades of decline has resulted in a loss of nearly 2 out of every 3 acres since 2004. That is a sobering statistic, and it captures the harsh reality of Florida’s iconic citrus industry. The symbol of the state’s agricultural strength has endured a prolonged period of decline driven by the impacts from the spread …

UF/IFAS

UF/IFAS Hosts Citrus Packinghouse Day

Daniel CooperAwards, Events, Packing

The 64th annual Citrus Packinghouse Day was held in early September at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred. The event drew fresh fruit growers and packers from various parts of Florida. Presentations were given on shipping regulations, new varieties and citrus under protective screen (CUPS). Fresh fruit, …

future

A Bright Future and New Normal for Citrus

Daniel CooperCitrus Expo

Citrus has a brighter future in Florida and surrounding areas, according to one industry expert. Hopefully, there will be enough farmers left standing to profit from it. Rick Dantzler, Citrus Research and Development Foundation chief operating officer, was a featured speaker at this year’s Citrus & Specialty Crop Expo. He spoke about the industry’s future as it continues to navigate …