By Christa Court Disaster events, such as extreme weather events (hurricanes, floods, droughts, etc.), have always been and will continue to be a threat for growers. Impacts to a citrus grove might include production losses associated with fruit drop from surviving trees and asset damages to buildings, machinery/equipment, irrigation systems and destroyed trees. Producers might also incur increased costs for …
Varroa Mite Management Guide to Protect Honey Bee Health
By Sabrina Halvorson The Honey Bee Health Coalition unveiled the 8th edition of the Tools for Varroa Management Guide. The guide provides information on the latest tools and options for beekeepers and others in the United States and Canada to keep bees healthy and manage varroa mites, which spread disease within and among honey bee colonies. An expert team of beekeepers, …
Optimizing Gibberellic Acid Applications in Florida Citrus
Tripti Vashisth, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor of horticultural sciences, has dedicated several years of research into the use of plant growth regulators like gibberellic acid (GA) to fight fruit drop in citrus. In the August All In For Citrus Podcast, Michael Rogers, director of the UF/IFAS Citrus Research and Education Center, interviewed …
A Shift Toward Soil Microbes in Young Citrus Tree Care
SUMMARY: Many Florida citrus growers have made the decision to shift their focus away from saving older HLB-infected trees and toward protecting and strengthening young citrus trees, using soil probiotics, before too much damage is done. Understanding citrus trees’ vascular systemsCitrus trees have developed a complex but effective circulatory system for the uptake, storage, and utilization of water and nutrients. …
Packinghouse Day Featured Updates and Award
Over 60 citrus industry representatives gathered Aug. 25 for the 61st annual Packinghouse Day at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred. They heard updates on H-2A visa options for packinghouse workforce needs, an overview of citrus fruit export requirements and an update on food safety auditing. Faculty …
Psyllid Management Alert for Brazil
The onset of rains in several regions of Brazil’s citrus belt has made it necessary for growers to pay added attention to citrus greening, Fundecitrus reported. The association of citrus growers and juice manufacturers from the state of São Paulo said the extra attention is needed due to the increase in greening-spreading psyllid populations in this period. Fundectirus reported that …
New Organic Transition Initiative
Agriculture Secretary Tom Vilsack announced details of the U.S. Department of Agriculture’s (USDA) $300 million investment in a new Organic Transition Initiative. The initiative will help build new and better markets and streams of income for growers. The number of non-certified organic farms actively transitioning to organic production dropped by nearly 71% since 2008. USDA hopes to reverse this trend, …
Woman of the Year in Agriculture Named
The Florida Department of Agriculture and Consumer Services (FDACS) named Madeline Mellinger the 2022 Woman of the Year in Agriculture. Mellinger founded Glades Crop Care, Inc. in 1972 and is still the company’s chief operating officer. Glades Crop Care provides integrated pest management and crop counseling services to more than 65,000 acres of plants and more than 60 varieties of fresh …
Progress With HLB Products
Rick Dantzler, chief operating officer of the Citrus Research and Development Foundation (CRDF), spoke during the general session of the Citrus & Specialty Crop Expo. He provided an update on products he hopes will help the citrus industry reset and begin to increase production again. The products are two oxytetracycline (OTC) materials that can be injected into citrus trees. “We …
Using Technology to Support Citrus Management Decisions
By Yiannis Ampatzidis and Sandra M. Guzmán Pests and diseases, nutrient deficiencies, tree stress from environmental conditions and other factors can be overwhelming. The arrival of sensors and small unmanned aerial vehicles (UAVs) make it possible to gather large amounts of data to assess risk factors and estimate possible crop performance scenarios based on the availability of resources. At the …
European Lemon Crop Down; Grapefruit Up
The European Union (EU) lemon crop for 2021–22 is expected to decline from the previous season while its grapefruit crop is projected to rise. LEMONEU lemon production is forecast at 1.5 million metric tons (MMT), down from the 1.7 MMT estimated for the previous season. Spain is the EU’s largest lemon producer and accounts for nearly 65% of EU production. …
A Two-Pronged Approach to Suppress Psyllids
By Bryony C. Bonning and Lukasz L. Stelinski Asian citrus psyllids (ACP) transfer the pathogen that causes citrus greening from plant to plant as they feed. After confirmation of citrus greening in Florida in 2005, growers intensified their use of insecticides against ACP to try to stop disease spread. However, this method alone has yielded variable success and increased costs. …
Water Shortage Is Latest Texas Citrus Concern
A little more than 20 inches of rain has fallen on Dale Murden’s Texas grapefruit grove in 2022 — “about average for the year,” he says. But the majority of Texas is in severe drought, and that poses problems for Murden and other Texas growers, especially for the future. “We just are not seeing any rain or significant inflows in …
The Need for New Investors in Florida Citrus
By Thomas H. Spreen As many of you know, I have been part-owner of a small citrus grove company in Florida. My long-time partner was Bob Behr, CEO of Florida’s Natural. He was a student in the first class I taught at the University of Florida in the spring of 1977. He and I made our first grove purchase in …
Focused on Finding Solutions
By Michael Rogers As we approach a new citrus-growing season, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers and Extension agents working throughout the state renew their focus on finding solutions that growers can use in the short term to sustain their operations. While we value our longer-term research projects, efforts that provide tangible applications that …
Greening and Canker Concerns for Georgia Growers
The recent Citrus Growers’ Summer Update in Valdosta, Georgia, provided growers another outlet to learn about two diseases — citrus greening and citrus canker — that could have serious ramifications on the industry’s future in Georgia. Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist, highlighted the seriousness of the discovery of both of the diseases in …
Impact of HLB on Fruit Growth and Retention
By Tripti Vashisth and Mary Sutton Citrus trees affected by huanglongbing (HLB) consistently have small fruit and low fruit numbers at harvest. The low fruit numbers are largely attributed to the increased rates of preharvest fruit drop that accompany HLB. Small fruit is more likely to drop during this preharvest period, suggesting a link between fruit size and retention. To …
How Alico Had Less Crop Decline Than Average
Alico President and CEO John Kiernan recently pointed out that the company had less orange crop decline than Florida as a whole in the 2021–22 citrus season. He noted that while the U.S. Department of Agriculture reported that the Florida crop declined 22.7% from the prior season, Alico’s decline was only 12.9%. “The company believes this lower rate of decline …
Aid Available to Conserve Florida’s Natural Resources
Florida growers and others looking to make farm improvements can apply for aid from the U.S. Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS). CIGThe NRCS will invest up to $900,000 for Conservation Innovation Grants (CIG) for agricultural resource priorities in Florida. Fiscal Year 2022 conservation resource priorities for the NRCS in Florida are: climate resilience, grazing, soil health and urban …
Protect Against Psyllids in Early Shoot Development
A Fundecitrus study found that the first four stages of orange tree shoot development are the ones that should be most protected against HLB-spreading psyllids. The Brazilian association reported that among the six stages of shoot development, the first four (V1 to V4) are the most attractive to the psyllid and favorable for its feeding and reproduction. Therefore, those are …





























