Updates on the so-called greasy green disorder and the Cold Hardy Citrus Association were presented at the virtual Packinghouse Day on Aug. 26. GREASY GREENThe greasy green disorder affecting fruit primarily in Florida’s Indian River region has “been getting worse the past two seasons,” researcher Mark Ritenour reported. Ritenour is a University of Florida Institute of Food and Agricultural …
Economic Trends, Disaster Analysis Discussed
The economic trends of Florida’s citrus industry and how the impacts of a natural disaster are determined were discussed recently by a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) economist. Christa Court, assistant professor of regional economics and director of the UF/IFAS Economic Impact Analysis Program, said Florida citrus production and yield are trending downward. “But we …
Steps for Reducing Fruit Drop
Editor’s Note: Tripti Vashisth with share new information on the use of gibberellic acid treatments to improve health and yield of HLB-diseased trees in a virtual seminar on Sept. 21. Register here. Researcher Tripti Vashisth told the recent Citrus Expo audience how fruit drop might be reduced through the use of nutrition and irrigation strategies, gibberellic acid and increased fruit …
Summer Citrus Intern Sought for 2022
Syngenta Crop Protection is seeking a paid citrus intern for the summer of 2022. The company will assign the intern to a mentor and a territory, and provide a vehicle for work use. The intern will gain experience with territory management and pest and disease identification. Opportunities will be provided to gain sales and marketing experience and exposure to the …
Kaolin Helps With ACP and HLB
According to researchers in Florida and California, kaolin clay, especially red kaolin, aids in the management of Asian citrus pysllids (ACP) and the HLB they spread, among other attributes. Christopher Vincent of the University of Florida Institute of Food and Agricultural Sciences and Monique Rivera of the University of California at Riverside recently presented a webinar about kaolin. The University …
Georgia Growers: Stop Citrus Greening Spread
Jonathan Oliver, University of Georgia assistant professor and small fruits pathologist, is concerned about the potential impact of citrus greening disease in Georgia. That’s why he is encouraging Georgia growers to quickly dispose of infected trees if any are found. “Once greening becomes really widespread and established in a lot of our trees, it’s really hard to stop it,” Oliver …
Alabama Trying to Contain Citrus Canker
How citrus canker arrived in Alabama is still unknown. What is certain is that it’s an issue the Alabama Department of Agriculture is determined to contain before it becomes a major problem, said Kassie Conner, director of the Auburn University Plant Diagnostic Lab, during a recent webinar. “The first trees that were found infected were in a landscape, and the …
Protect Against the COVID-19 Delta Variant
By Ben Chapman, Taylor O’Bannon, Matt Krug and Michelle Danyluk If you would have asked us last September if there would still be a need to write a tip about COVID-19 a year later, our answer would have been, “We sure hope not.” So, what’s changed? The simplest explanation is the emergence of the Delta variant. When you hear us …
CUPS Yielding Positive Results for Grapefruit
An innovative way to manage huanglongbing (HLB) disease is producing impressive results in University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research. According to Arnold Schumann, UF/IFAS professor at the Citrus Research and Education Center (CREC), citrus under protective screen (CUPS) production systems have increased yields with zero effect from HLB. He shared research results during a recent …
Update on Culturing of the Citrus Greening Bacterium
By Nabil Killiny, Anders Omsland, Haluk Beyenal and David R. Gang The suspected causative agent of citrus greening disease, Candidatus Liberibacter asiaticus (CLas), is one of many plant pathogens that has not been isolated and grown in pure culture. One major reason for this is its small genome size; it is missing the genes for several metabolic pathways critical for …
Landscape Fabric Blocks Diaprepes Larvae
Fabric mulch landscape covers, typically used to block weeds in nurseries, can aid in diaprepes root weevil control, Larry Duncan reported at the recent Citrus Expo. “Some of these products, not all of them, are extremely effective at blocking the diaprepes weevil larvae from getting into the soil” after falling from a citrus tree, Duncan said. Duncan is a University …
Hurricane Preparation and Recovery: Key Points
Multi-county citrus Extension agent Ajia Paolillo recently suggested ways to prepare for and recover from a hurricane. Hurricane season began June 1 and ends Nov. 30. Paolillo said hurricane activity is usually most prevalent from August to October. She cited an August update from the National Oceanographic and Atmospheric Administration predicting 15 to 21 tropical storms this summer, with 7 …
Incentive for Early-Orange Plantings
Growers who participate in the upcoming Cycle III of the Citrus Research and Field Trial (CRAFT) program will be offered an additional $1,000-per-acre incentive to plant early-season oranges. Tamara Wood, CRAFT executive director and program manager, announced the incentive during an Aug. 31 CRAFT Cycle III workshop. CRAFT pays Florida growers to plant trees on which they will conduct commercial …
Irrigation Aided by Thermal Imaging
Scientists in Brazil and Florida found that the direct examination of plant canopy temperature can assist in optimizing citrus irrigation management in greenhouses. The researchers were Gustavo Haddad Souza Vieira with the Federal Institute of Espírito Santo in Brazil and Rhuanito “Johnny” Ferrarezi with the University of Florida Institute of Food and Agricultural Sciences. Their study aimed to develop a …
Sneak Peek: September 2021 Citrus Industry
The September issue of Citrus Industry magazine largely focuses on two topics: nutrient management research and highlights from the return of the in-person Citrus Expo. NUTRITION RESEARCHSeveral features authored by University of Florida Institute of Food and Agricultural Sciences authors share the latest strategies for improving nutrition of citrus trees. Yiannis Ampatzidis and Ute Albrecht discuss the newest technologies that …
E-commerce and Social Media Lead Citrus Marketing
Two reports that a Florida Department of Citrus (FDOC) marketing executive presented recently show that social media and e-commerce have become major, effective tools for marketing citrus and other products. FDOC Director of Global Marketing Samantha Lane told the Florida Citrus Commission on Aug. 25 that the FDOC’s 2021-22 e-commerce campaign has so far driven more than $2.3 million in …
Mutual Petitions FDA Regarding OJ Brix
Florida Citrus Mutual (FCM) is making efforts to protect growers in the event Florida oranges don’t meet the minimum Brix requirement for not-from-concentrate (NFC) orange juice (OJ). FCM recently sent a formal request to the U.S. Food and Drug Administration (FDA) seeking enforcement discretion to protect growers from the likely contingency that Florida’s 2021-22 orange crop may not meet FDA’s …
How to Work With UF/IFAS for a Rootstock Trial
By Bill Castle The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) plant improvement team has long been engaged in field research to evaluate new scions and rootstocks. That effort continues and has involved trials on public and private property. While public sites are valuable, they are limited in number. Thus, most …
Making Sense of Biologicals: A Key Tool Against Citrus Canker
Disease management ranks high on the list of every Florida citrus grower’s agenda. Tools are available for producers to combat citrus diseases like greasy spot, melanose, scab, foot rot and citrus canker. But growers can never have enough tools, especially when disease resistance is a real possibility in the future. STOCKING THE TOOLBOX“To grow citrus trees and produce quality fruit …
PIECES OF THE PAST: Advice From 1887
By Brenda Eubanks Burnette In researching the biographies for an upcoming book on the Florida Citrus Hall of Fame members, I came across a digitized book by Google online that was written in 1887. It’s titled “Florida Facts Both Bright and Blue: A Guide Book to Intending Settlers, Tourists, and Investors From a Northerner’s Standpoint; Plain Unvarnished Truth, Without ‘Taffy’; …