ReMedium TI® has received a special local need label from the Florida Department of Agriculture and Consumers Services (FDACS). The label will remove the requirement that applications to treat citrus greening (HLB) cannot be made beyond two years in a row. For Florida citrus growers, this means those who have applied ReMedium TI® over the past two seasons now will …
International HLB Conference Focused on Grower Solutions
This spring, the seventh International Research Conference on Huanglongbing (IRCHLB) was held in Riverside, California. The inaugural event was held in 2008 and funded by a grant from the U.S. Department of Agriculture (USDA) National Institute of Food and Agriculture. USDA researcher Tim Gottwald and University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor Jim Graham founded the …
Not All OTC Products Are Created Equally
Sponsored Content In this special series, Tom Johnson, owner of TJ BioTech, tackles questions about optimizing trunk-injection applications to treat HLB. Q: The claim has been made that all oxytetracycline (OTC) products are the same. What have you found in your research and development work? Tom Johnson: During the development of ReMedium TI®, we had to determine the formulation, rates …
Study Looks at Interaction Between OTC and Soil Microbiome
A wealth of observations are being recorded by growers and scientists on the effects of trunk injection of oxytetracycline (OTC). Visually, trees have responded with better canopies. Hopefully, higher yields and quality will continue to follow the applications. But what about below ground? There have been recorded improvements in citrus root mass in treated trees. Sarah Strauss, associate professor of …
How Does OTC Impact the Soil Microbiome?
Sarah Strauss, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) soil microbiologist, joined the June All In For Citrus podcast episode to discuss her research on the interaction of oxytetracycline (OTC) currently being injected into citrus trees and the soil microbiome. She noted that OTC does change the soil microbial community. The good news is that the changes …
Seeking a Partner for OTC
Few would dispute that the approval of oxytetracycline (OTC) for use as a trunk-injection therapy to treat HLB is one of the biggest breakthroughs in the nearly two decades of fighting the disease. Most Florida citrus growers believe the therapy has been a net positive and they are committed to continuing the treatment. However, there’s a stipulation in the labels …
Teenager Awarded for Investigation of Alternative Trunk-Injection Treatment
Tanishka Balaji Aglave of Valrico, Florida, received the $10,000 H. Robert Horvitz Prize for Fundamental Research for her investigation into a natural alternative treatment against citrus greening disease (known as huanglongbing, or HLB). Aglave, a 15-year-old who attends Strawberry Crest High School and grew up on a citrus farm, injected the trunks of infected citrus trees with an extract from …
Sneak Peek: July 2024 Citrus Industry
The conversation in Florida citrus continues to center around trunk injection of oxytetracycline (OTC). The July issue of Citrus Industry magazine presents the latest information on the OTC topic. OTC product labels require a one-year pause in application after two years of use. This requirement was put in place to prevent pathogen resistance to the product. Florida growers who have …
All In For Citrus Podcast, June 2024
The educational seminars at the June Florida Citrus Industry Annual Conference covered a wide range of topics intended to give growers hope that progress is being made in the fight against HLB. During the June All In For Citrus podcast, Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, …
Some Grapefruit Showing Less HLB Symptoms
A recent update of the U.S. Department of Agriculture Multi-Agency Coordination (MAC) Project evaluating multiple grapefruit varieties on different rootstocks reveals that some combinations have less HLB symptoms than others. Jackson has one of the lowest ranks for disease index across the combinations. The healthiest trees in the trial include: At least half of the blocks in the MAC trial …
CITRUS NURSERY SOURCE: What Florida Citrus Growers Are Talking About
By Peter Chaires When June rolls around, the last of the oranges are generally coming in and it’s time to reassess what worked and identify areas for improvement. Research-based entities are making every effort to steer dollars to where they will have the most immediate impact. The name of the game right now is capacity preservation. We must do what …
Grower Mood Mixed at Mutual’s Annual Conference
Florida citrus growers gathered in rainy Bonita Springs last week for the Florida Citrus Industry Annual Conference. The event hosted by Florida Citrus Mutual drew a good crowd, who were happy to see the heavy rains brought by a no-name tropical system that helped break the drought in some areas of the state. The mood of growers was mixed. While …
Ask The OTC Expert
Have Questions about Trunk Injection? Ask the Expert for Answers In this special series, Tom Johnson, owner of TJ BioTech, tackles questions about optimizing trunk injection applications to treat HLB. Get technical tips and more advice on how to get the most out of your oxytetracycline treatment. Have a question? Email your questions to CitrusIndustry@AgNetMedia.comAugust 14, 2024Purity Is a Two-Part …
The Relationship Between Roots and OTC Treatments
Back in the early days of the HLB fight, it was observed that what is going on underground in citrus tree root systems is just as important as what is happening aboveground. In 2013, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and U.S. Department of Agriculture-Agricultural Research Service researchers published that 27% to 40% root loss due …
Moving Beyond Greening
By Tom Spreen When citrus greening was first discovered in Florida, it did not have a profound impact on production. The big news at that time was the multiple hurricanes that had crossed Florida in 2004 and 2005. The hurricanes served to spread citrus canker so sufficiently that the state of Florida was forced to abandon its efforts to eradicate …
CRDF Focused on the Search for HLB Resistance
According to Rick Dantzler, Citrus Research and Development Foundation (CRDF) chief operating officer, the past seven days have been busy for CRDF’s committees. First, the Plant Improvement Committee, chaired by grower Joby Sherrod, reviewed several projects and ideas seeking HLB resistance in detail. A three-year plan for the plant improvement programs for University of Florida Institute of Food and Agricultural …
Phytophthora Increasing; HLB Complicates Control
Phytophthora incidences are increasing in Florida citrus groves, plant pathologist Ozgur Batuman reported during a May 21 presentation. Phytophthora diseases include foot rot of trunk and limbs, root rot and brown rot. Batuman, a University of Florida Institute of Food and Agricultural Sciences associate professor, said these diseases led to yield reductions of 3% to 6% per year even prior …
Sneak Peek: June 2024 Citrus Industry
The Citrus Achievement Award has been honoring outstanding industry leaders since 2001. Recipients were previously recognized in Florida Grower magazine. With the consolidation of Florida Grower and Specialty Crop Industry magazines to create Specialty Crop Grower, the award now has a new home in Citrus Industry magazine. The move was made possible by award sponsor TJ BioTech. The June issue …
Rootstocks and OTC
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center hosted a May OJ Break educational seminar. Ute Albrecht, UF/IFAS associate professor of plant physiology, spoke during the event and gave an update on oxytetracycline (OTC) therapies being applied in citrus groves over the past two seasons. She gave a summary of research she …
Integrating Antibiotics Into a Broader Management Plan for HLB
By Lukasz Stelinski, Eric Roldan and Kirsten Pelz-Stelinski Use of antibiotics in fruit production is not a new idea, but it has only recently been applied on a larger scale in Florida citrus. The initial labels for huanglongbing (HLB) treatment with antibiotics in Florida citrus were approved in March 2016 in response to significant economic losses caused by HLB. Antibiotics …