fruit quality

Oxytetracycline Aids Fruit Quality for Some Scions

Daniel CooperCitrus Expo, HLB Management

A presenter at the recent Citrus & Specialty Crop Expo said oxytetracycline (OTC) trunk injections improved fruit quality in several citrus scions that were studied. The presenter was John Chater, assistant professor and citrus genetic improvement horticulturist with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. Chater opened his presentation with these …

pesticide

Farmer Alliance: Pesticide Data Program ‘Critical’

Daniel CooperPesticides

The Minor Crop Farmer Alliance (MCFA) recently requested that a U.S. Department of Agriculture Reorganization Plan not adversely impact the Pesticide Data Program (PDP) administered by the Agricultural Marketing Service. In a letter to Agriculture Secretary Brooke Rollins, the alliance called the PDP “a relatively small but exceptionally critical program upon which the agriculture community heavily depends.” The letter stated …

OTC

Citrus Industry Leader Has High Hopes for OTC

Daniel CooperCitrus Expo, HLB Management

Rick Dantzler, Citrus Research and Development Foundation chief operating officer, provided hope for citrus growers during the recent Citrus & Specialty Crop Expo. He believes citrus greening disease could soon be a thing of the past. But to get growers to that “tree of the future,” they need short-term solutions to overcome the devastating disease. Dantzler continues to tout trunk …

AEWR

Ruling on Adverse Effect Wage Rate Applauded

Daniel CooperLabor, Regulation

In late August, a federal court in Louisiana vacated the U.S. Department of Labor’s (DOL) 2023 Adverse Effect Wage Rate (AEWR) Methodology rule. Grower advocacy groups applauded the ruling, noting it should help bring wage stability to the highly volatile AEWR.  The rule, published Feb. 28, 2023, based the H-2A program’s AEWRs on the Occupational Employment and Wage Statistics (OEWS) …

fdoc

FDOC Addresses Misconceptions About OJ Brix Proposal

Daniel CooperFlorida Department of Citrus

The Florida Department of Citrus (FDOC) addressed what it called misconceptions surrounding the recent Food and Drug Administration (FDA) proposal to decrease the required sugar levels in pasteurized orange juice (OJ). Excerpts from an FDOC statement follow:  The Florida citrus industry … (has) advocated for this modification for years to more accurately reflect the natural changes in Florida’s citrus crop. …

All In for Citrus

All In For Citrus Podcast, August 2025

Daniel CooperAll In For Citrus Podcast, Citrus Expo

The August All In For Citrus podcast features seminar recaps from the Citrus & Specialty Crop Expo, which was held this month at the Florida State Fairgrounds in Tampa. The event included an extensive citrus educational program with more than 20 presentations. Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and …

recommendations

Georgia-Based Recommendations for Fertilization

Daniel CooperGeorgia, Nutrition

Georgia citrus growers need fertilizer recommendations that are specific to the state’s production. This would allow growers to make better decisions concerning crop management. That is one of the reasons Mary Sutton, University of Georgia (UGA) assistant professor and citrus Extension specialist, was hired in August 2024. She is conducting research that will benefit Georgia growers who need to mostly …

medfly

New Medfly Quarantine in California

Daniel CooperCalifornia Corner, Pests, Regulation

A portion of Santa Clara County has been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of two wild female flies in the city of San José. If not stopped, Medflies can devastate fruits and vegetables by reproducing and leaving larvae in produce. The invasive flies can then spread to other regions. A quarantine is a …

Hawaii

Hawaii Ready to Export Lemons and Limes

Daniel CooperExport, Export/Import, lemons, Limes

Researchers from the U.S. Department of Agriculture-Agricultural Research Service (USDA/ARS) are opening new markets for America’s fruit growers. In Hawaii, Lisbon lemons and Persian or Tahiti limes, both commercially popular cultivars, are new crops recently planted on the rich-soil island of Maui. Currently, the fruit is being sold locally, but harvest volumes may eventually surpass local demand. Export from Hawaii …

Citrus Sustainability

The Five Rs of Citrus Sustainability

Daniel CooperCitrus Expo, Irrigation, Nutrition

One of the themes that emerged during the citrus seminars at the Citrus & Specialty Crop Expo was that integration of multiple strategies is needed to keep HLB-infected trees productive. Davie Kadyampakeni’s talk detailed the five Rs of sustainable citrus production in the era of HLB. Kadyampakeni is an associate professor at the University of Florida Institute of Food and …

soil moisture sensors

Installing and Using Soil Moisture Sensors

Daniel CooperIrrigation, Tip of the Week

By Sandra M. Guzmán and Amir Rezazadeh During Florida’s rainy and hurricane season, accurate water management becomes even more critical for citrus growers. Soil moisture sensors (SMSs) can be used as a baseline tool for making informed irrigation decisions. But to get reliable readings, it is critical to choose, install and use them correctly. WHERE TO INSTALL Proper SMS placement …

magazine

UF/IFAS Launches New Magazine at Citrus & Specialty Crop Expo

Daniel Cooperextension

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) debuted a new publication at the Citrus & Specialty Crop Expo. The UF/IFAS Citrus Magazine is an Extension initiative to deliver Florida’s geographically dispersed citrus research to growers. “You can expect three editions per year, featuring articles written by UF/IFAS citrus scientists and Extension faculty across the state,” said …

turnbull

PIECES OF THE PAST: The Turnbull Story

Daniel CooperPieces of the Past

By Brenda Eubanks Burnette I often wondered about the information on the Turnbull label that reads: “Turnbull Hammock. Settled in 1767 by Andrew Turnbull. Home of the Famous Indian River Oranges and Grapefruit. Grown and Packed by Oak Hill Citrus Growers Assn. – Oak Hill, Florida.” I was astounded to find out that a family in Vero Beach was direct …

snail

Snail Update: Impacts and Abamectin

Daniel CooperPests

Snail impacts on Southeast citrus production can be devastating. A big part of the problem is not the damage to citrus trees but the harm the pest inflicts on irrigation systems. Lauren Diepenbrock, University of Florida Institute of Food and Agricultural Sciences associate professor and entomologist, conveyed this message to cold-hardy producers during the Citrus Grower’s Summer Update meeting on …

Orange Market

Orange Market Growth Projected

Daniel CooperInternational, Oranges

A report from The Business Research Company states that the global orange market size will grow from $3.64 billion in 2024 to $3.87 billion in 2025 and to $4.9 billion in 2029, developing at a compound annual growth rate of 6.1%. According to the report, the growth in the orange market can be attributed to: MAJOR PLAYERS Major companies operating …

plot

Florida CUPS: From a Small Plot of Potted Plants to 1,500 Acres

Daniel CooperCUPS

When University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Professor Arnold Schumann started a citrus under protective screen (CUPS) plot in Florida in 2014, the grapefruit trees were in above-ground pots. The plot at the Citrus Research and Education Center was on 1.33 acres that included 1 acre of planted citrus. After five years, the grapefruit trees on …

trip

Highlights From California Ag’s Trip to Brazil

Daniel CooperBrazil, California Corner

A recent Citrus Industry article reported on Brazil’s Fundecitrus hosting a delegation of agriculture leaders from California. The California Department of Food and Agriculture (CDFA) also reported on the trip, which included other venues in addition to Fundecitrus. Highlights from the CDFA report follow. During the trip to Brazil, the California delegation visited farms, packinghouses, research facilities and business incubators …

budding

Budding Arrival in Brazil Raises Citrus Greening Concern

Daniel CooperBrazil, Citrus Greening

According to Fundecitrus, the arrival of budding in orange groves marks a critical period for Brazilian citrus growers. The budding process intensifies with the onset of rain, requiring more rigorous control of the psyllid that feeds on buds and transmits the bacteria that causes citrus greening. The budding period, which runs from July to October in Brazil, accounts for between …

fruit drop

Reducing Fruit Drop in HLB Citrus

Daniel CooperFruit Drop, HLB Management, Tip of the Week

By Tripti Vashisth Fruit drop has become one of the biggest challenges for Florida citrus growers, especially in groves hit hard by HLB. On top of the disease, recent hurricanes like Ian and Milton have made the problem worse, causing fruit to drop not just during the storm but often weeks later. Other stresses — such as drought, flooding or …

gene

Gene-Edited Citrus Comes Closer to Commercial Realization

Daniel CooperBreeding, Research

In 2012, Jennifer Doudna, Emmanuelle Charpentier and their research team published a paper in the journal Science describing the CRISPR-Cas9 system as a precise gene-editing tool. It was considered a major scientific breakthrough with huge possibilities in human medicine and in agriculture. Doudna and Charpentier were awarded the Noble Peace Prize in chemistry in 2020 for their pioneering work with …