This month’s All In For Citrus podcast focuses on the upcoming Citrus & Specialty Crop Expo scheduled for Aug. 17–18 at the Lee Civic Center in North Fort Myers, Florida. Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, said the university’s citrus research team worked hard to develop …
Florida Citrus Industry Conference Draws Record Crowd
Citrus growers and industry stakeholders gathered in Bonita Springs last week for the Florida Citrus Industry Annual Conference. After being sidelined the previous two years due to COVID-19, the conference drew a record crowd of more than 500 registered attendees. The event, hosted by Florida Citrus Mutual, was packed with educational programming and meetings for various industry groups. The Citrus …
Update on CRDF Research Projects
The Citrus Research and Development Foundation (CRDF) Research Management Committee and board of directors recently approved projects for funding. The first CRDF research project has approval for funding of a final year of research by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) to study the lebbeck mealybug and its management. “The Research Management Committee debated this …
HLB Research Priorities
Michael Rogers, director of the University of Florida of Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred, discussed the recent Florida Citrus Growers’ Institute in the April All In For Citrus podcast. The event drew a good crowd of growers who came to learn about the latest research aimed at HLB. Rogers made …
CRDF Focused on HLB Therapeutics
The Citrus Research and Development Foundation (CRDF) held its April board of directors meeting to hear reports on projects involving 2,4-D, gibberellic acid, brassinosteroids and zinc. According to Rick Dantzler, chief operating officer of CRDF, the foundation is conducting a full-court press to study how these materials can combat fruit drop and improve quality. CRDF staff also presented a proposal …
Promising New Research Discussed at Florida Citrus Growers’ Institute
Growers gathered in Avon Park at South Florida State College for the Florida Citrus Growers’ Institute on April 5. The event, organized by regional citrus Extension agents with the University of Florida Institute of Food and Agricultural Sciences, aims to provide timely research that can be applied in groves today. It also was an opportunity for growers to get updates …
CRDF Changes Funding Procedures
The Citrus Research and Development Foundation (CRDF) had a busy board of directors meeting in March. Rick Dantzler, CRDF chief operating officer, says the board utilized a new approach in seeking and approving research projects during the meeting. “The board advanced a number of research topics through the vehicle of ‘directed research’ where we negotiate with specific scientists who we …
CRDF Funds Fruit Drop Research, Hears Antibiotic Presentations
The Citrus Research and Development Foundation (CRDF) governing board on Jan. 25 approved a project aimed at reducing fruit drop by using potassium, zinc, gibberellic acid and the herbicide 2,4-D in different timing scenarios. The funding will allow University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Fernando Alferez to finish two years of work that CRDF Chief …
CRDF Update: Maximizing Funds and Testing Tree Injection
The Citrus Research and Development Foundation (CRDF) board of directors met on Sept. 28. Rick Dantzler, CRDF chief operating officer, shared highlights from the meeting. “The primary action was the endorsement of the idea to pull together a group of plant breeders from across the country to help us decide where to invest our funding in plant improvement,” said Dantzler. …
Principles and Risks of Trunk Injection for Delivery of Crop Protection Materials
By Ute Albrecht and Leigh Archer Trunk injection is a targeted delivery of materials into the stem or trunk of trees as an alternative to spraying or soil drenching. It is practical for disease and pest management in high-value forest trees and ornamental plants where aerial applications are problematic because of environmental and human health-related concerns. Interest in using the …
Antibiotic Delivery Methods: Trunk Injection vs. Foliar Application
By Nabil Killiny and Christopher Vincent The citrus industry has suffered numerous setbacks over the past 20 years because of the devastating effects of huanglongbing (HLB) disease. Many options for controlling the disease are being investigated to make groves as productive as possible under the current HLB pressure. Even small improvements in tree health or yield of diseased trees may …
Sneak Peek: April 2021 Citrus Industry
Ask any Florida citrus grower what the top priority is, and you’ll likely get the same answer: Keeping HLB-affected trees productive and profitable. The April issue of Citrus Industry magazine provides research on production practices aimed to meet this goal. Adjusting the amount of sunlight plants receive has proven to increase citrus tree health and yield. University of Florida Institute …
Citrus Researcher Earns National Award
Researcher. Scholar. Change agent. Nian Wang, a professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), has been recognized for all of these roles with an award from the American Phytopathological Society (APS) at its 2020 annual meeting. Wang received the Ruth Allen award, which honors people who have made an outstanding, innovative research contribution that has …
Antibiotics Used in Citrus
A new University of Florida Institute of Food and Agricultural Sciences Extension document, Antibiotics in Crop Production, was published in May by Leigh Archer, Ute Albrecht and Pamela Roberts. The authors found that the use of antibiotics has resulted in the successful control of bacterial diseases in some crops but not in others. The publication includes research information on antibiotics …
Bactericides for Psyllids and HLB
Many growers in recent years have used bactericides in an effort to reduce HLB infection in their groves. University of Florida Institute of Food and Agricultural Sciences researcher Kirsten Pelz-Stelinski reports on use of bactericides to reduce both the bacteria that causes HLB and the psyllids that spread it. In greenhouse studies, she reports, bactericides appeared to offer “some reduction” …
Research on Heat Treatment, Bactericide Uptake
A University of Florida Institute of Food and Agricultural Sciences researcher reports on an experiment to see if treating trees with heat would enhance the uptake of a bactericide commonly used for HLB. “We treated trees that were not HLB infected, so this wasn’t looking at the efficacy of heat treatment against HLB,” says scientist Christopher Vincent, who works at …
Bactericide Use: an Update at Citrus Expo
By Harold Browning Column sponsored by the Citrus Research and Development Foundation Use of bactericides to reduce disease levels in infected trees continues to be a topic of debate in Florida citrus. Now in the second season of grower use, many growers are continuing to use the three products containing oxytetracycline or streptomycin within their seasonal spray programs. The Citrus …
Bactericide Grower Trials for HLB ‘Extremely Variable’
Stephanie Slinski, Citrus Research and Development Foundation bactericide project manager, discussed grower trials on the use of bactericides for HLB at the Florida Citrus Growers’ Institute in Avon Park on April 4. She summarizes the presentation. “We have a series of field trials set up throughout Florida to test the efficacy of oxytetracycline and streptomycin just in the grower program,” …
Injecting Citrus Tree Trunks with Bactericide May Help Stem Greening
By: Brad Buck GAINESVILLE, Fla. — A chemical treatment known as a bactericide could help preserve citrus trees from the potentially deadly and costly greening disease, a new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) study shows. Citrus is estimated as a $10.9 billion-a-year industry in Florida and the finding could be key to helping the state’s …
Bactericide Survey Results Summary
By Stephanie Slinski and Harold Browning (Editor’s note: Click on the graphs throughout the article to enlarge them.) Bactericides have been available to growers as a new tool to improve the health of HLB-infected trees since early March 2016. This use has been under a crisis declaration from the Florida commissioner of agriculture, but on August 15 of this year, …