U. S.

U.S. House Chairs Ask for H-2A Effectiveness Evaluation

Daniel CooperLabor

Two U.S. House of Representatives committee chairs recently sent a letter to the Government Accountability Office (GAO) asking it to evaluate the effectiveness of the H-2A visa program. The letter was sent by Education and the Workforce Committee Chairwoman Virginia Foxx of North Carolina and Agriculture Committee Chairman Glenn Thompson of Pennsylvania. The H-2A visa program, widely used in agriculture, …

control

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, …

Oriental fruit fly

California Announces Oriental Fruit Fly Quarantine

Daniel CooperCalifornia Corner, Pests, Regulation

A portion of California’s Orange County has been placed under quarantine for the Oriental fruit fly. The California Department of Food and Agriculture (CDFA) reported the quarantine Nov. 6. It followed the detection of eight flies in and around the cities of Santa Ana and Garden Grove.  The quarantine zone measures 87 square miles. It is bordered on the north …

assessment

What Growers Need to Know About Georgia’s Citrus Assessment

Daniel CooperGeorgia, Marketing, Regulation

In 2023, at the request of Georgia citrus producers, the Georgia Agricultural Citrus Commission (Georgia Citrus Commission) was created under the Georgia Commodity Promotion Act. Under the Commodity Promotion Act, the Georgia Citrus Commission is allowed to create a marketing order that allows for collection of an assessment on marketed fruit. This marketing order was voted on and approved by …

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 …

Georgia

CITRUS NURSERY SOURCE: Georgia’s Citrus Team Is Shaping Up Nicely

Daniel CooperCitrus Nursery Source, Georgia

By Peter Chaires Many have been following the development of the Georgia citrus industry with great interest and curiosity. Though satsuma remains the dominant fresh citrus crop, other varieties are in varying stages of trial and adoption. The University of Georgia (UGA) has been supporting citrus growers in this process for more than a decade. Wayne Hanna, though his appointment …

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 …

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 …

quality

Rain Brings Relief but Brazil Orange Quality Still Low

Daniel CooperBrazil, Orange Juice, Production

Regular rains and mild weather in Brazil’s Citrus Belt of São Paulo and Triângulo Mineiro in late October brought relief for trees affected by prior lack of rain and high temperatures. The better weather may improve the quality of fruit that is still on the trees. But even with the return of rainfall, the 2024–25 orange crop has presented low …

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 …

variety

New Orange Variety Introduced in China

Daniel CooperBreeding, International, Varieties

Li Ningxian, a fruit grower in China’s Jiangxi province, discovered in 2004 that some of his Nanfeng oranges matured about six weeks earlier than usual. Although he attempted to propagate these early-maturing branches, the variety proved unstable with sugar content. Ningxian sought help from YI Hualin, a professor at Huazhong Agricultural University College of Horticulture & Forestry Sciences, who specializes …

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 …

examination

Florida Pesticide Examination Process Changing

Daniel CooperCEU, Education

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently announced changes to the Florida pesticide examination process. It noted that pesticide applicators often rely on UF/IFAS Extension to obtain pesticide education, training and support, and to take their respective exams. All 67 county offices have historically offered free exams, through paper or using a computer. The changes …

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) …

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 …

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 …