A Grove-First Approach

Josh McGillHLB Management, Research

In the nearly two decades that huanglongbing (HLB) has plagued Florida citrus groves, about $1 billion has been spent in the search for solutions. A lot of great scientists in Florida and around the world have worked on the problem, and a silver bullet, if there is one to be found, has been elusive. Researchers, along with growers, have developed …

FFVA: Work Needed on Miami-Dade Heat Bill

Josh McGillLabor, Regulation

The Florida Fruit & Vegetable Association (FFVA) recently requested the rejection of Miami-Dade County’s proposed Heat Standard for Outdoor Workers. FFVA urged the county’s Community Health Committee (CHC) to engage agricultural producers in developing a meaningful and workable standard. FFVA argued that the proposed standard is intentionally broad and punitive and does not provide the support needed for implementation. The …

Rule Would Bolster H-2A Farmworker Protections

Josh McGillLabor, Regulation

The U.S. Department of Labor (DOL) on Sept. 12 proposed a new rule that would strengthen protections for temporary foreign farmworkers in the H-2A program. This is the third proposed regulation tied specifically to the H-2A program in the last year. It follows the final DOL rule published in October 2022 that modernized key aspects of the H-2A program and …

Improved Lebbeck Mealybug Detection

Josh McGillPests

The U.S. Department of Agriculture-Agricultural Research Service (USDA ARS) scientists and research partners have found a faster, safer and less expensive way for growers to detect the invasive lebbeck mealybug. A recent study published in Journal of Applied Entomology describes their work. The lebbeck mealybug (Nipaecoccus viridis) feeds on and damages various citrus fruit and ornamental plants. The invasive species …

First CLas-Positive Psyllids Found in Ventura County

Josh McGillCalifornia Corner, HLB Management, Psyllids

A Candidatus Liberibacter asiaticus (CLas)-positive Asian citrus psyllid (ACP) sample has been collected from a residential property in California’s Ventura County. CLas is the bacterium that causes HLB. The Citrus Research Board’s Jerry Dimitman Laboratory confirmed the positive sample. This is the first confirmed CLas-positive ACP sample found in Ventura County. The positive sample, comprised of 12 adult psyllids from …

Biopesticide Products Patented

Josh McGillPesticides

Research by Rhodes University PhD graduates Tamryn Marsberg and Michael Jukes has led to the patent of two viral-based products. MultiMax and CodlMax are alternatives to chemical pesticides on citrus, apples and litchi. The advantage of these products includes their lack of non-target effects; the pest is controlled without harming the environment. The products could assist with control of the …

Wang Appointed to Graves Eminent Scholar Chair

Josh McGillHLB Management, Research

Citrus researcher Nian Wang has been appointed to the Graves Eminent Scholar Chair in Biotechnology at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Wang is a professor of microbiology and cell science at the Citrus Research and Education Center (CREC). He was appointed to the chair because of his work to develop a tree resistant to …

Psyllid Resistance to Organophosphates Begins in Brazil

Josh McGillHLB Management, Pesticides, Psyllids

Research has confirmed the initial phase of resistance of the HLB-spreading psyllid to the active ingredient malathion in some microregions of the citrus belt of São Paulo and Triângulo/Southwest Mineiro. Malathion is from the organophosphate chemical group. The research was conducted by Fundecitrus in partnership with Luiz de Queiroz College of Agriculture/University of São Paulo (Esalq/USP). This is the third …

Brite Leaf Citrus Nursery: Innovation and Industry Involvement

Josh McGillnursery

By Tacy Callies Before they were married, Nate and Anna Jameson vowed they would one day farm for themselves. They met while attending the University of Florida. Nate graduated with a Bachelor of Science in ag operations management, while Anna earned her degree in animal science. After graduation, Anna worked for Lykes Meat Group and Nate for Ben Hill Griffin …

Citrus Harvesting Trends in Florida

Josh McGillEconomics, Labor

By Ariel Singerman Harvesting citrus is manual and labor intensive, making the cost of labor a key component of the cost of harvesting. The H-2A guest worker program allows companies to temporarily hire non-U.S. citizens to perform agricultural labor or services of seasonal nature. Given that domestic workers for harvesting are in short supply, harvesting companies in Florida (and other …

Transgenic Efforts Against HLB

Josh McGillBreeding, HLB Management, Research

Matthew Mattia recently provided an overview of work at the U.S. Department of Agriculture Agricultural Research Service (USDA ARS) transgenic test site in Fort Pierce. Transgenic refers to an organism that contains genetic material into which DNA from an unrelated organism has been artificially introduced. Scientists at the Picos Farm screen transgenics for suppression of citrus Candidatus Liberibacter asiaticus (CLas), …

Reasons for Less Argentine Lemon Production

Josh McGillCrop Forecast, International, lemons

Fresh lemon production in Argentina in 2022–23 is forecast to decline to 1.65 million metric tons (MMT), down from 2.1 MMT the prior year, the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) reported recently. The decline is due to the impact of rising costs, which have prompted smaller producers to limit the maintenance needed on lemon-bearing trees and …

Texas Growers Rebounding From 2021 Freeze

Josh McGillfreeze, Texas

Texas growers appear to be back on track after Winter Storm Uri caused significant setbacks to many groves in February 2021, according to a Texas A&M AgriLife Extension Service expert. ACREAGE STATUSDespite citrus production losses to the storm, Juan Anciso, AgriLife Extension horticulturist at Weslaco, said he was pleasantly surprised that the industry was faring much better than he expected. …

Doubling Down on CRISPR Research

Josh McGillBreeding

By Michael E. Rogers We have all been waiting (and waiting some more) for new varieties to be developed that are resistant to HLB. Ten years ago, researchers thought they were really close to having new HLB-resistant varieties developed using gene-editing CRISPR technology. But as science goes, the story was much more complicated than first believed. A single edit to …

Citrus Packinghouse Day Is Aug. 24

Josh McGillEvents, Packing

Topics of interest to Florida’s fresh citrus industry will be addressed at Citrus Packinghouse Day on Aug. 24 in Lake Alfred. The event will be held at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. The free event in Ben Hill Griffin Hall will include an educational program, exhibitors and networking opportunities. …

Stelinski Elected Entomological Society Fellow

Josh McGillAwards

Lukasz Stelinski, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomology professor, has been elected a fellow of the Entomological Society of America (ESA) for 2023. He is one of six recognized for outstanding contributions to entomology via research, teaching, Extension, administration, military service or public engagement and science policy. Stelinski works at the UF/IFAS Citrus Research …

Alico Discusses Trunk Injection and Next Season

Josh McGillHLB Management

Alico, Inc. began treating citrus trees in January 2023 with an oxytetracycline (OTC) product via trunk injection as a citrus greening therapy. “Through June 30, 2023, we have treated over 35% of our trees with OTC, which is expected to mitigate some of the impacts of citrus greening and is expected to decrease the rate of fruit drop, as well …

Efforts Continue to Obtain Federal Funding for Hurricane Relief

Josh McGillfinancial, hurricane

Florida Citrus Mutual (FCM) reported that Congress was expected to receive a supplemental funding request from the White House Office of Management and Budget (OMB) in early August. “We worked with Congresswoman Debbie Wasserman Schultz to craft a letter urging (OMB) Director Shalanda Young to include relief for Florida’s farmers in their (OMB) request,” FCM Executive Vice President/Chief Executive Officer …

Hairy Approach May Get to the Root of HLB

Josh McGillHLB Management, Research, Texas

Developing disease-resistant, high-quality improved crop varieties may seem like a “hairy” task, but Texas A&M AgriLife Research scientists may have gotten to the root of the issue. A new biological technology that develops and multiplies disease-resistant citrus plants is under development by an AgriLife Research team led by Kranthi Mandadi. Mandadi is an associate professor at the Texas A&M AgriLife Research …

Developing Management for a New Snail Pest

Josh McGillPests

By Lauren Diepenbrock A recently established snail species, Bulimulus bonariensis (also known as Bulimulus sporadicus), has been growing in population throughout the Southeast for the past few years. Growers first reported concerns about this snail in 2020 when they found the pest covering microjets and interfering with irrigation in the late spring/early summer (Figure 1). At the time, it was …