Arizona

Control of Asian Citrus Psyllids and Leafminers

Daniel CooperPests

Biological control can have a significant impact on Asian citrus psyllid (ACP) and citrus leafminer (CLM) populations in Florida, a researcher reported in a Nov. 19 virtual meeting. Jawwad Qureshi, associate professor of entomology with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), also discussed some cultural and chemical controls that work on the pests.  ACP Qureshi, …

U.S.

U.S. Citrus Production and Value by State

Daniel CooperProduction

Citrus utilized production for the 2023–24 season in the United States (U. S.) totaled 5.24 million tons, up 6% from the previous season, the U.S. Department of Agriculture National Agricultural Statistics Service (USDA/NASS) reported. California accounted for 79% of total U.S. citrus production, Florida totaled 17%, while Texas and Arizona produced the remaining 4%. The value of the 2023–24 U.S. …

flame

New Flame Grapefruit Selection Offers Improved HLB Tolerance

Daniel CooperGrapefruit, Tip of the Week, Varieties

By Manjul Dutt, Sheetal Ramekar and Gary England The grapefruit was created by chance from a cross between a pummelo and a sweet orange. It was first discovered in Barbados in the 18th century. All the commercially sold grapefruits today trace their roots back to the Duncan variety of grapefruit. Cultivars existing today were developed through natural and induced mutations …

trunk-injection

Grower Meeting Features Trunk-Injection Results and Hurricane Relief

Daniel CooperEvents, HLB Management, hurricane

Florida Citrus Mutual hosted a grower informational meeting on Nov. 13 at Kenny and Cookie Sanders’ Grove House in Zolfo Springs. About 80 citrus growers gathered for the event to hear more about the latest research on trunk-injection therapy and discuss recovery efforts after Hurricane Milton. Ute Albrecht, associate professor of plant physiology with the University of Florida Institute of …

budget

Citrus Commission Approves Budget and Other Actions

Daniel CooperFlorida Citrus Commission, Florida Department of Citrus

The Florida Citrus Commission (FCC) in October approved a 2024–25 operating budget for the Florida Department of Citrus (FDOC) and heard about marketing programs the budget will fund. The FCC also approved citrus varieties to be included in the 2024 Program for Expedited Propagation. BUDGET AND ASSESSMENT RATES The FCC approved a $21.75 million operating budget for the FDOC. It …

shiranui

Shiranui Gaining Popularity in Cold-Hardy Citrus Region

Daniel CooperCold Hardy, Varieties

Leaders in the cold-hardy citrus region have long advocated for growers to diversify their crop portfolios. Lindy Savelle, executive director of the Georgia Citrus Association, has wanted citrus producers in North Florida, South Georgia and South Alabama to plant alternatives to satsuma mandarins, which has been the predominant citrus type produced in the region. Diversification helps extend the harvest season. …

field day

Field Day Featured Favorable Fresh Fruit Rootstock and Scion Combinations

Daniel CooperEvents, Rootstocks, Varieties

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center recently hosted a field day showcasing its Millennium Block citrus grove. The field day went on despite the grove being impacted by a tornado associated with Hurricane Milton in October. The Millennium Block is one of the largest experimental trials examining fresh fruit …

Lukas Hallman

UF/IFAS Colleagues Laud Lukas Hallman

Daniel CooperAwards, Education

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) colleagues have acknowledged Lukas Hallman for his distinguished achievements and contributions as a graduate student. Hallman completed master’s and doctoral degrees in horticultural sciences in the last six years as a UF/IFAS graduate research assistant. He worked in Associate Professor Lorenzo Rossi’s Plant Root Biology Laboratory at the Indian River …

root recovery

Increased Yields Are Significant Return on Investment

Daniel CooperHLB Management, OTC Expert

Sponsored Content In this special series, Tom Johnson, owner of TJ BioTech, tackles questions about optimizing trunk-injection applications to treat HLB. Q: How is ReMedium TI® performing in the fight against citrus greening? Tom Johnson: The reported overall performance of ReMedium TI® has been stellar over the last two years. The reports from the second year of injections are just …

Hamlin

Apply Brassinosteroids to Improve Hamlin Brix

Daniel CooperHLB Management, PGRs, Tip of the Week

By Fernando Alferez and Divya Aryal Brassinosteroids (BRs) are a class of plant growth regulators with several effects on plant growth and development. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) work in the last few years has shown that BR treatments may influence internal maturity in Hamlin sweet orange if performed at the right time. Research has …

trunk-injection

Ongoing Research Shows the Promise of Trunk-Injection Therapy

Daniel CooperHLB Management

Trunk injection of oxytetracycline (OTC) has been the center of attention in Florida citrus for the past two years since the Environmental Protection Agency registered formulations of the material for use. But experience with antibiotics in Florida citrus is not new. That was part of the message Lukasz Stelinski delivered to attendees of the Citrus & Specialty Crop Expo in …

cups

CUPS Expensive but Beneficial

Daniel CooperCold Hardy, CUPS

The benefits of implementing citrus under protective screen (CUPS) could be major for growers in the cold-hardy region. But they first must overcome the major limiting factor associated with the system — its cost. Arnold Schumann, a professor of soil fertility and water quality at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education …

production

Study Shows Value of FDOC Orange Juice Promotions

Daniel CooperFlorida Department of Citrus, Marketing, Orange Juice

A 2024 University of Florida (UF) study showed that demand for orange juice (OJ) would have declined by 8% without the awareness of Florida Department of Citrus (FDOC) promotional activities. The study estimated consumption would have decreased by an additional 75.7 million single-strength equivalent gallons — equal to roughly 13.7 million boxes of Florida processed oranges — without FDOC promotions. …

post-hurricane

Post-Hurricane Pest Management

Daniel Cooperhurricane, Pests

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Lauren Diepenbrock recently offered post-hurricane observations and management suggestions for some insects and snails. Diepenbrock is an assistant professor at the Citrus Research and Education Center.  BULIMULUS SNAILS Related Bulimulus snail species have been found to lay eggs in the fall after major rain events. Both small and larger …

Mark Ritenour

Ritenour Receives Two Honors

Daniel CooperAwards

An expert in postharvest technology for Florida’s fresh produce industry recently received two honors in one week. Mark Ritenour’s professional colleagues with the American Society for Horticultural Science (ASHS) named him a fellow at the society’s annual conference in Honolulu, Hawaii. He also began his role as associate director for the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) …

Dundee Citrus Growers Association

Dundee Citrus Growers Association Celebrates 100 Years

Daniel CooperFlorida, History

Dundee Citrus Growers Association has struggled with the same major setbacks as the rest of Florida’s citrus industry, including multiple freezes in the 1980s and HLB in this century. But Dundee, which is celebrating its 100th anniversary, has not only survived but has become the state’s largest citrus cooperative. A recent video recounts the association’s history, focusing on the growth, …

Soilcea

Soilcea Modified Sweet Orange Receives Favorable Decision

Daniel CooperBreeding, Regulation

The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) has determined that Soilcea’s modified sweet orange, which reportedly has resistance to HLB, is not a plant pest or a plant that requires regulation under 7 CFR part 340. USDA APHIS regulates the “Movement of Organisms Modified or Produced through Genetic Engineering” as described in 7 CFR …

committee

Citrus Administrative Committee Seeks New Member

Daniel CooperFlorida, Fresh

The Citrus Administrative Committee (CAC) is actively seeking nominations for a new committee member to complete a two-year term ending August 2026. U.S. Department of Agriculture (USDA) Agricultural Marketing Service policy is that the diversity of the board should reflect the diversity of its industries in experience of members, methods of production and distribution, marketing strategies and other distinguishing factors …

Interstocks

Australian Lime Interstocks to Combat HLB

Daniel CooperHLB Management, Research, Tip of the Week

By Ozgur Batuman, Sanju Kunwar and Ana Redondo In a promising effort to protect citrus from huanglongbing (HLB), University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are exploring the potential of Australian lime as an interstock graft for Valencia scions with Swingle rootstock. The interstock technique uses various limes, known for their natural HLB-tolerant peptides, between the …

Lindy Savelle

Lindy Savelle: A Voice for Georgia Citrus Growers

Daniel CooperGeorgia

Lindy Savelle took an unconventional route to becoming a leader for Georgia citrus. Turns out, her path was paved with success. The former federal law enforcement investigator decided to pursue a second career as a Georgia citrus grower and became a voice for the state’s blossoming industry. Almost 10 years after planting her first trees, Savelle has emerged as a …