“Superior New Rootstocks Can Make Citrus Profitable Again” is the headline of a recent U.S. Department of Agriculture Agricultural Research Service (USDA ARS) article. Kim Bowman, research geneticist at the USDA Horticultural Research Laboratory in Ft. Pierce, Florida, write the article. A slightly edited version follows: The rootstock and root system are what make trees strong enough to survive and …
Reduce Post-Hurricane Fruit Drop With PGRs
By Tripti Vashisth and Taylor Livingston Hurricane Milton passed over many citrus-producing counties in Florida, resulting in canopy and fruit loss (especially in early varieties). HLB-affected trees undergo a lot of stress, and now the hurricane has added more abiotic stress to trees. High-speed winds caused significant fruit and leaf drop. The fruit and leaves that escaped the drop during the …
UF/IFAS Researcher and Ph.D. Candidate Honored
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researcher Lorenzo Rossi and his Ph.D. candidate Lukas Hallman have been invited to join Sigma Xi, an international honor society of scientists and engineers. Rossi is an associate professor at the UF/IFAS Indian River Research and Education Center (IRREC) in Fort Pierce. Sigma Xi lists more than 200 Nobel …
HLB-Tolerant Scion Breeding Update
U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) geneticist Matt Mattia with the U.S. Horticultural Research Laboratory in Fort Pierce, Florida, recently provided a scion breeding update on HLB-tolerant citrus. A slightly edited version follows: Significant strides are being made in the development and evaluation of new citrus varieties, with many now nearing commercial release. These varieties are not only promising …
The Good, the Bad and the Ugly: Optimizing OTC Injections
By Ute Albrecht, Caroline Tardivo, Larissa Nunes, Gabriel Pugina, Gerardo Moreno and Jasmine de Freitas As growers are well into the second year of oxytetracycline (OTC) injections since approval for commercial use, more and more data are accumulating. The good news is that in all University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) trials, trees have been responding …
Plan to Attend the Millennium Block Field Day
By Robin Koestoyo On Nov. 7, citrus growers will join University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Assistant Professor Flavia Zambon to view new citrus varieties that show tolerance to citrus greening. Zambon will guide visitors at the 2024 Millennium Block Field Day, a walk-through interpreted tour. The Millennium Block is a seminal grapefruit trial on 20 acres …
Farmworker Protection Rule Challenged
The National Council of Agricultural Employers (NCAE) has joined several agricultural associations and individual farmers in a lawsuit challenging a federal farmworker protection rule. The Department of Labor (DOL) rule is titled Improving Protections for Workers in Temporary Agricultural Employment in the United States. NCAE stated that the rule unlawfully violates the rights of America’s farm and ranch families. It …
Association Names Danyluk Researcher of the Year
The Florida Fruit & Vegetable Association (FFVA) has presented University of Florida Institute of Food and Agricultural Sciences Professor Michelle Danyluk its 2024 Researcher of the Year Award. The award was presented at FFVA’s recent annual convention in Marco Island. The honor is given to individuals who have dedicated themselves and their work to improving Florida agriculture. Danyluk works in …
Research Funded for Citrus-Harvesting Robot
California’s Citrus Research Board (CRB) has signed a $900,000 funding agreement with Nanovel that includes delivery of a citrus-harvesting robot after a series of field trials in California, Nanovel reported. The field trials are set to start in the spring of 2025 and will be conducted in cooperation with citrus growers. Nanovel, an Israeli company established in 2018 by Chief …
Psyllid Control Discussed at South African Citrus Symposium
Researchers Marcelo Miranda and Haroldo Volpe with Brazil’s Fundecitrus discussed control of the HLB-spreading psyllid during a recent visit to a South African research symposium and accompanying events. During the Citrus Research Symposium in Drakensberg, Miranda discussed studies developed at Fundecitrus on the management of the HLB-spreading psyllid (Diaphorina citri). In South Africa, HLB is caused by a bacteria different …
Citrus Executive Named Chair of Florida Fruit & Vegetable Association
The Florida Fruit & Vegetable Association (FFVA) has named Steven Callaham, chief executive officer of Dundee Citrus Growers Association, as its chair for 2024–26. “Steven Callaham has long been a driving force in Florida’s citrus industry. His leadership, vision and dedication have strengthened the resilience and future success of the agricultural community,” said FFVA President Mike Joyner. “With his commitment …
Medfly Quarantine Issued in California
A portion of Alameda County in California has been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of one wild mated female in Fremont. The U.S. Department of Agriculture, the Alameda County agricultural commissioner and California Department of Food and Agriculture (CDFA) are working collaboratively on the project. The quarantine area in Alameda County measures approximately …
Industry Input Needed for Proposed Rule on Heat Protection
The U.S. Department of Labor recently announced the opening of the public comment period for its proposed rule intended to protect millions of workers from the significant health risks of extreme heat. The proposed rule, Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings, was published in the Federal Register. Announced in July by the department’s Occupational …
Packinghouse Day in Florida Is Sept. 12
Fresh fruit growers, packers and researchers will meet for the 2024 Packinghouse Day on Sept. 12 in Lake Alfred, Florida. The annual event will be held at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. Registration opens at 8:30 a.m., and the event runs from 9:30 a.m. to 12 p.m. The event …
Citrus Nutrient Management Recommendations Continue to Evolve
When HLB arrived in Florida, it changed the world for citrus growers, and a lot of other things had to change with it. One of the biggest changes has been how growers manage their fertilizer programs. The nutrient recommendations that had been developed by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) before HLB became outdated because …
Seeking Early-Season Sweet Oranges
HLB has reduced citrus production across the board, but early varieties like Hamlin have taken an even bigger hit. Hamlin has been plagued by the disease and fruit drop, which has left a void in the juice-processing segment in the early season. Growers who have been replanting have mostly relied on later-season varieties like Valencia because it seems to be …
Sunkist Partners With National Breast Cancer Foundation
Sunkist Growers, Inc. recently announced a partnership with National Breast Cancer Foundation, Inc. (NBCF) to raise awareness about breast cancer and provide resources to those impacted by the disease. “Through their (Sunkist) support, they will help us provide early detection, education and support services to women affected by breast cancer across the country,” said Candice Hensley, NBCF senior manager of …
H-2A Workers Blocked From Joining Unions in 17 States
A federal judge in Georgia on Aug. 26 blocked a federal rule allowing migrant farmworkers to join unions in 17 states. The ruling prevents the U.S. Department of Labor (DOL) from enforcing the new rule. The rule would have prevented agricultural employers from retaliating against migrant workers with H-2A temporary work visas for joining labor unions and organizing against wage …
HLB Product Advancing in Registration Process
Silvec Biologics announced that an RNA vector delivery product to combat HLB has progressed to the Full Science Review Phase of the Environmental Protection Agency (EPA) Pesticide Regulation Improvement Act registration process. The product was developed in collaboration with Southern Gardens Citrus (a subsidiary of U. S. Sugar), the University of Florida (UF) and Texas A&M AgriLife Research. Silvec is …
Getting a Handle on the Giant Swallowtail
By Amir Rezazadeh The giant swallowtail butterfly (Papilio cresphontes) is a beautiful insect, admired for its large wingspan and vibrant yellow and black coloration. However, for citrus growers, this butterfly is often viewed with less enthusiasm. The larvae of the giant swallowtail, commonly referred to as “orange dogs,” can cause significant damage to citrus trees. Understanding the nature of this …