fungicide

Grower Group Seeks Fungicide Strategy Refinements

Daniel CooperPesticides, Regulation

The Minor Crop Farmer Alliance (MCFA) recently submitted comments to the Environmental Protection Agency (EPA) regarding EPA’s Draft Endangered Species Act Fungicide Strategy. The MCFA is a national coalition that represents growers, shippers and processors of specialty crops to advocate for science-based government pesticide and regulatory policies. The letter to EPA acknowledged improvements over previous endangered species proposals. At the …

new research

New Research Tool Could Speed Search for HLB Treatments

Daniel CooperBrazil, HLB Management, Research

A new research platform may help scientists identify potential treatments for citrus greening disease faster, potentially speeding up the search for solutions. Citrus greening, also known as huanglongbing (HLB), is caused by the bacterium Candidatus Liberibacter asiaticus (CLas). The disease disrupts the tree’s ability to transport nutrients, leading to symptoms such as blotchy leaves, small and misshapen fruit, poor juice …

August

Sneak Peek: August 2026 Citrus Industry

Daniel CooperSneak Peek

The Citrus Industry section of the August issue of Specialty Crop Grower magazine features practical production advice, a new variety resource, citrus marketing insights and more. The section opens with a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) article explaining crop load management and alternate bearing in citrus. Fernando Alferez and Muhammad A. Shahid discuss why citrus …

Peel

Assessing Citrus Varieties for Peel Benefits

Daniel CooperResearch, Varieties

Many people throw away citrus peels because they are too bitter to eat raw, but this outer layer of the fruit’s skin is a rich source of many sought-after beneficial compounds. The peel is in demand for companies seeking to use those compounds for health and pharmaceutical products.  Christina Dorado, lead scientist and chemist at the U.S. Department of Agriculture …

sunburn

Using Kaolin Clay to Protect Against Sunburn

Daniel CooperProduction, Tip of the Week, Weather

By John M. Chater Kaolin clay is used as a crop protectant in many crops, including tree crops like citrus. This clay is often white to grayish white and is commonly used to reduce sunburn on fruit and young trees. Kaolin also has been demonstrated to reduce pest feeding and activity in some tree crops. The albedo from the clay …

day

PIECES OF THE PAST: A Reminder of Days Gone By

Daniel CooperPacking, Pieces of the Past

By Brenda Eubanks Burnette When Thomas E. Hogan arrived in Vero Beach in January of 1920, he could hardly have imagined that his name would one day be tied to one of the county’s most enduring agricultural legacies. A native of Suwannee County, Hogan and his wife came south from the small town of Wellborn, settling along the hammock lands …

phytophthora

Managing Phytophthora in Cold-Hardy Citrus

Daniel CooperCold Hardy, Diseases

In Florida, the soilborne phytophthora pathogens — primarily Phytophthora nicotianae and Phytophthora palmivora — are the leading causes of root rot, crown rot and foot rot. Two University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers recently wrote about phytophthora management in cold-hardy citrus. The authors are Assistant Professor and Extension Specialist Muhammad Shahid and postdoc Carlos Aucique-Perez, …

standard

California Weighs In on OJ Standard Change

Daniel CooperCalifornia Corner, Orange Juice, Regulation

Like the Florida citrus industry, California Citrus Mutual (CCM) welcomed the recent U.S. Food and Drug Administration (FDA) update of the federal standard of identity for pasteurized orange juice (OJ). The action marks the first significant revision to the standard in more than 60 years and takes effect Aug. 19. The FDA reviewed consumer sensory data during its rulemaking process …

Medfly

50 Years of Fighting the Medfly

Daniel CooperPests, USDA

The U.S. Department of Agriculture Animal and Plant Health Inspection Service’s (USDA APHIS) Medfly Program turned 50 years old in 2025. The pioneering international partnership has provided a critical line of defense against the destructive Mediterranean fruit fly (Medfly). Launched in 1975 in collaboration with Mexico and Guatemala, the Medfly Program has evolved into a global model for pest management. …

young

Two-Step HLB Defense for Young Trees

Daniel CooperIPCs, Research

A newly published study suggests that the use of individual protective covers (IPCs) followed by monthly applications of homobrassinolide (HBr) after IPCs are removed is beneficial. The two-step approach can help young mandarin trees stay healthier longer and produce more fruit in Florida’s HLB-endemic environment. The study, “Combining Individual Protective Covers and Homobrassinolide Treatment Prolongs Tree Health and Increases Fruit …

understanding

Understanding Today’s Pesticide Labels

Daniel CooperCEU, Pesticides

By Danielle S. Williams Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. A minimum score of 70% is required to receive credit. Pesticides are vital tools in agriculture that help protect crops …

soil health

How Compost Can Improve Soil Health

Daniel CooperSoil Health

Soil microbiologist Sarah Strauss kicked off a Biochar and Compost Workshop at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in mid-July. Strauss, a UF/IFAS associate professor, focused on the importance of soil health for citrus. She began with a U.S. Department of Agriculture Natural Resources Conservation Service definition of soil health. …

soil health

Leverage NRCS Conservation Practice 336 to Improve Soil Health

Daniel CooperSoil Health, Tip of the Week

By Tripti Vashisth, Taylor Livingston and Abhishek Neupane Florida citrus production occurs predominantly on sandy soils that are inherently low in organic matter and possess limited water- and nutrient-holding capacity. These soil constraints have become increasingly important in the era of huanglongbing (HLB), where compromised root systems reduce the tree’s ability to efficiently acquire water and nutrients. As a result, …

biofertilizer

Early Data on Biofertilizer for HLB-Affected Trees

Daniel CooperNutrition

By Flavia Tabay Zambon and Paulo Eduardo Branco Paiva Florida’s citrus industry has faced severe decline due to huanglongbing (HLB, also known as citrus greening). Production has dropped 92% since the 2003–04 season, according to the U.S. Department of Agriculture Economic Research Service. Growers have relied on cultural practices, tolerant varieties and antimicrobial treatments, especially oxytetracycline (OTC), which has recently …

varieties

Take a Closer Look at New Varieties at the Citrus & Specialty Crop Expo

Morgan ColeCitrus Expo, Varieties

For the past several years, John Chater, University of Florida Institute of Food and Agricultural Sciences assistant professor of horticultural sciences, has been charged with acting as a conduit between citrus breeders and growers seeking information on new varieties and rootstocks to plant. Chater has worked with growers to evaluate new varieties planted in the real world. This has given …

fdoc

FDA Lowers Minimum Pasteurized OJ Brix Level

Frank GilesCitrus, Oranges

Federal officials on July 17 announced a regulatory change lowering the minimum Brix requirement for pasteurized orange juice (OJ) from 10.5% to 10%. The final Food and Drug Administration rule making the change was to be published and take effect July 20. Florida Citrus Processors Association and Florida Citrus Mutual (FCM) first petitioned for the change in June 2022.  The …

workshop

Workshop Focuses on Biochar and Compost

Daniel CooperEvents

The University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center hosted a workshop on biochar and compost in mid-July. Interest in promoting soil health continues to grow in citrus and other specialty crops, so the event drew a large crowd. The workshop also drew interest because several speakers provided guidance about cost-share dollars available from …

seaweed

Seaweed Extract Promising for Freeze Protection

Daniel CooperBiostimulants, freeze, Research

Freezing temperatures remain one of the biggest threats to citrus production, especially in Florida and other regions where sudden cold snaps can severely damage trees. New research suggests that seaweed-based biostimulants may help citrus trees better withstand freezing conditions. The study was published in Scientific Reports. It was led by Ahmed Abdullah, Shahid Iqbal, Alaiha Asif, KeAndre Leaks and Muhammad …

efforts

Efforts to Control Psyllids in California

Daniel CooperCalifornia Corner, Psyllids

Grove edges, detector dogs and the California Citrus Research and Field Trials (CA-CRaFT) Program were prominent topics in a virtual presentation about California’s efforts to control HLB-spreading Asian citrus psyllids (ACP). Ivan Milosavljevic, Citrus Research Board (CRB) integrated pest management entomologist, delivered the report. His June 23 presentation was part of the 2026 CRB Webinar Series. GROVE EDGES Conventional human …

citrus team

Visit the UF/IFAS Citrus Team at the Citrus & Specialty Crop Expo

Daniel CooperCitrus Expo, Tip of the Week

By Jamie D. Burrow and Tripti Vashisth The UF/IFAS Citrus Team conducts ongoing research to improve citrus production management strategies. The Citrus & Specialty Crop Expo is one of the main annual events where the team comes together to showcase the latest research and tools available to citrus growers. For more than 20 years, the citrus team has had a …