advisory committee

Safeguard Produce Supply, Coalition Urges

Josh McGill International

The Global Coalition of Fresh Produce recently called on national and international policymakers to implement measures to safeguard the supply of affordable and safe fruits and vegetables worldwide. The coalition also sought to ensure the viability of the fruit and vegetable industry. The coalition made the requests in a report titled Global Value Chains for Fresh Produce: An Urgent Call …

Updates on Florida Citrus Diseases

Josh McGill Diseases

Researcher Megan Dewdney recently provided updates on citrus canker, postbloom fruit drop (PFD) and algal spot. Dewdney is a University of Florida Institute of Food and Agricultural Sciences associate professor of plant pathology at the Citrus Research and Education Center. CANKERFruit is most susceptible to canker when it is from 3/8 to 1.5 inches in diameter, Dewdney said. The fruit’s …

Grower Sees More Damage From Season’s Second Freeze

Josh McGill Cold Hardy, freeze

Another freeze event last weekend could spell doom for some citrus trees produced in the cold-hardy citrus region. Kim Jones, president of the Cold Hardy Citrus Association, discussed the dire situation facing growers in the region. “I think we had some damage to some new growth that had come out from the last freeze. I can’t tell how much, but …

Postharvest Water Requirements for Packers

Josh McGill Packing, Regulation, Tip of the Week

By Clara Diekman, Micah Gallagher, Taylor O’Bannon and Michelle Danyluk Compliance dates for all water associated with the Produce Safety Rule (PSR, Subpart E) has previously been delayed, pending completion of the rule. The U.S. Food and Drug Administration (FDA) announced in the fall of 2022 that postharvest water requirements in the PSR will be enforced on large farms beginning …

Bugs Under the Covers

Josh McGill IPCs, Pest Management

Individual protective covers (IPCs) do an excellent job keeping HLB-spreading Asian citrus psyllids (ACP) out of young citrus trees, showing a 99.6% reduction in ACP compared to control trees. But they don’t provide “one and done” pest control, according to University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lauren Diepenbrock. In fact, IPCs “create a perfect environment …

Seeing Success With Louisiana Citrus Grown Indoors

Josh McGill Louisiana

A three-year Louisiana State University Agricultural Center (LSU AgCenter) study is investigating the pros and cons of growing citrus inside or in containers. “So far, we are finding that the pros are outnumbering cons,” said Anna Timmerman, LSU AgCenter horticulture agent in St. Bernard and Plaquemines parishes. Early results of Timmerman’s research show that growing citrus indoors produces a high-quality …

The Essential Elements of Reset Management

Josh McGill planting, Tip of the Week

By Mongi Zekri For maximum efficiency of a grove, it is essential that every location is occupied by a tree and that every tree is healthy. Prompt replacement of dead and declining trees means higher average long-term returns from the grove. If the declining trees remain in the grove, they keep getting weaker and yield less fruit each year. Therefore, …

Fundecitrus Researchers Attend Citrus Congress

Josh McGill Events, International

Researchers from Brazil’s Fundecitrus participated in the 14th International Citrus Congress held in Mersin, Turkey, Nov. 6–11. The event brought together participants from public and private research institutions, as well as the production and commercial sectors of citrus. Representatives from 28 countries participated in the congress, including the United States, South Africa, Australia, Israel and several countries in Europe. Fundecitrus …

PIECES OF THE PAST: Growers Recall the Way It Used To Be

Tacy Callies Pieces of the Past

By Brenda Eubanks Burnette It’s hard to imagine how the early pioneers managed to grow, pick, pack and ship their fruit without the technological means we have today. In doing various oral history interviews this year, that point was really brought home to me. One grower recalled how irrigating his family’s grove meant moving the actual water pipes manually from …

Peel Protection Key for Citrus Growers

Josh McGill Cold Hardy, Fresh

Citrus growers producing for the fresh market should always ensure their fruit’s peel remains unblemished and without defect. This will protect the fruit against infection and consumers choosing not to purchase the fruit. Mark Ritenour, professor of postharvest technology at the University of Florida Institute of Food and Agricultural Sciences, spoke during the recent Cold-Hardy Citrus Field Day at the …

Pruning Recommendations and Benefits

Josh McGill Pruning

By Mongi Zekri Pruning is an important grove practice that increases sunlight penetration within the tree canopy. Sunlight enhances flowering, fruit quality and color development. Sunlight also allows foliage to dry quickly after a rain shower, which reduces problems of fungal diseases. Pruning trees can improve fruit quality and increase fruit size. However, tree response to pruning depends on scion …

Oswalt Earns Extension Mentor of the Year Award

Josh McGill Awards, extension

By J. Scott Angle, jangle@ufl.edu, @IFAS_VP Of all the things Chris Oswalt has delivered for the citrus industry — weather data, freeze-protection advice, Extension programming — his most valuable contribution might be his mentorship of a new generation of citrus agents. GUIDING CAREERSYou likely wouldn’t have Danielle Sprague assisting a cold-hardy citrus association in North Florida were it not for …

Wang Honored for HLB Research

Josh McGill Awards

Nian Wang, a University of Florida (UF) Institute of Food and Agricultural Sciences professor, has been awarded one of the school’s 2022 Inventions of the Year for his work on HLB. Wang works in the Microbiology and Cell Science Department at the Citrus Research and Education Center. He worked on controlling HLB by mitigating cell death of the phloem tissues …

Managing Weeds in California Groves

Josh McGill California Corner, weeds

By Danielle Leal Over the years, new weeds have surfaced, and old weeds have developed resistance and become tougher to control. Crop scientists are currently researching ways to successfully manage weeds in citrus. Sonia Rios, technical development representative for Bayer Crop Science, said growers are heavily dependent on post-herbicides to help mitigate weeds. “In order to use a pre-herbicide, you …

Pointers for Better Pre-emergent Herbicide Performance

Josh McGill Citrus Expo, weeds

Ramdas Kanissery, speaking at the Citrus & Specialty Crop Expo, offered what he called an important strategy to prevent weed outbreaks in groves: “Never let ’em germinate.” Growers can keep weeds from germinating with pre-emergent herbicide programs, said the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor of weed science. He works at the Southwest Florida …

Preventing Further Hurricane Damage in Groves

Josh McGill Diseases, hurricane, Pests

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) faculty recommend actions citrus growers can take to prevent further damage to root systems and future fruit drop following Hurricane Ian. DEAL WITH PHYTOPHTHORAIf standing water has occurred in groves with phytophthora problems, growers should evaluate for root damage and treat accordingly. Floodwaters resulting from heavy rains can severely impact …

Startups Aim to Aid Citrus Industry

Josh McGill Florida, Technology

Two University of Florida (UF) startup companies have formed a union to help reverse the trend of declining Florida citrus production. Agriculture Intelligence and Satlantis believe they can offer a powerful tool to help the state’s growers more closely monitor their trees and manage problems faster. The startups, housed in one of UF’s business incubators, will combine expertise in precision …

Citrus Root Structures: Lessons From Below

Josh McGill Research, Root health

By Ute Albrecht There have been numerous reports of malformed roots in field-grown citrus trees recently. The rootstock propagation method is often suspected as the culprit. Before drawing quick conclusions, it is important to recognize that there are many different factors that can influence the root structure of a citrus tree aside from the propagation method. These include the genetic …

A Transformative Program

Josh McGill Education

By J. Scott Angle Morgan McKenna always knew she’d return home some day. Three previous generations of McKennas hadn’t just made a living from citrus. They’d made a life of it. It’s a life she wanted, too. Morgan saw the family business as family first and business second. She was most interested in the emotional rewards of coming home to …

Progress in Developing Improved Citrus Rootstocks to Mitigate HLB

Josh McGill HLB Management, Research, Rootstocks

By Jude Grosser, Manjul Dutt and Fred Gmitter Exploiting citrus genetic diversity is the key to defeating HLB. Plant species have survived for millennia with evolving, hostile pathogens. This is possible through natural selection within genetically diverse populations. Tolerant or resistant individuals survive and intermate, get through the bottleneck, and the species evolves. Current citriculture is based on extremely limited …