Lukasz Stelinski for years has promoted saving money on HLB control by spraying for Asian citrus psyllids (ACP) only when their populations reach a certain threshold. The University of Florida Institute of Food and Agricultural Sciences professor still promotes that concept, but with a slightly new twist. TRUNK INJECTION SHOWING PROMISEIn a virtual seminar on April 25, Stelinski advised growers …
Sneak Peek: May 2023 Citrus Industry
Some growers are taking a closer look at citrus under protective screen (CUPS), while others have already adopted the production system. CUPS has been proven to protect trees from HLB and hurricane damage. The May issue of Citrus Industry magazine features grower brothers who are early adopters of CUPS. Jerry and Keith Mixon have 150 acres of CUPS production in …
Citrus Growers Speak Up at Farm Bill Meeting
Citrus growers discussed their challenges and voiced their needs during a farm bill listening session held April 24 in Newberry, Florida. Glenn ‘GT’ Thompson (PA-15), chairman of the House Committee on Agriculture, along with bipartisan members, including Rep. Kat Cammack (FL-03), Rep. Darren Soto (FL-09), Rep. Austin Scott (GA-08), Rep. Doug LaMalfa (CA-01) and Rep. Chellie Pingree (ME-01), listened to …
IPCs and Citrus Varieties
By Fernando Alferez Five years of University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) data in trials across the state have shown that individual protective covers (IPCs) are effective in preventing HLB until they are removed. This has been shown in sweet orange varieties such as Valencia and Hamlin. In these varieties, it has been demonstrated that the …
All In For Citrus Podcast, April 2023
April was a busy month for citrus events with both the Citrus Growers’ Institute and the Florida Grower Citrus Show taking place. Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC), joined the All In For Citrus podcast to discuss the success of the two events. Both gatherings …
Cytokinin Studied for Citrus Health Benefits
Tripti Vashisth, University of Florida Institute of Food and Agricultural Sciences associate professor, has been leading the research on how plant growth regulators (PGRs) can improve the health of HLB-infected trees. She’s conducted extensive research on the use of gibberellic acid. But she has recently begun to study another hormone, cytokinin. She gave an update on this work during the …
Gibberellic Acid Applications: Day vs. Night
By Alessandro Franco, Faisal Shahzad and Tripti Vashisth Gibberellic acid (GA) is one of the most commonly used plant growth regulators which affects flowering, fruit and vegetative growth. Multiple monthly GA foliar applications have reduced preharvest fruit drop and increased yield in huanglongbing (HLB)-affected sweet oranges. The potential impact of these findings is huge for commercial citrus production. However, there …
Can Brassinosteroids Help Citrus Cope With Disease and Extreme Weather?
By Fernando Alferez and Muhammad A. Shahid Brassinosteroids (BRs) are a natural group of hormones that regulate physiological and biochemical attributes that include seed germination, flower development, root formation and resistance to various abiotic and biotic stresses. BRs have shown promise in reducing pests and diseases in a wide range of plants, including citrus. A commercial formulation of BRs has …
Redesigned Florida Grower Citrus Show a Sweet Success
The reinvigorated Florida Grower Citrus Show was a crowd-pleaser in its first year hosted by AgNet Media. The annual event was relocated to University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and U.S. Department of Agriculture (USDA) facilities in Fort Pierce. It was streamlined from a two-day format to a one-day event. The show brought together exhibitors who …
Canopy Assist: A New Way to Measure Tree Health
Tripti Vashisth, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor, joined the March episode of the All In For Citrus podcast to discuss a new smartphone application growers will be able to use soon to measure tree health. Plant growth regulators like gibberellic acid, 2,4-D and brassinosteroids have demonstrated the ability to improve tree health and …
CUPS Irrigation and Fertilization for Grapefruit
By Rhuanito S. Ferrarezi and Mark A. Ritenour Citrus under protective screen (CUPS) is a modern production system that excludes the Asian citrus psyllid and, consequently, the devastating disease citrus greening (huanglongbing or HLB) from plants cultivated in screenhouses. A recent study investigated the effect of different irrigation management strategies on fruit yield and quality of grapefruit grown in CUPS. …
CRAFT Introduces Existing Tree Therapies Program
The Citrus Research and Field Trial (CRAFT) Foundation has announced a new Existing Tree Therapies Program for Florida citrus growers. The program is designed to provide the citrus industry with a better understanding of the best use patterns, combinations and timing of newly developed therapies. Therapies eligible for the program show promise in restoring health and improving juice quality and quantity, …
Trunk Injection Inspires Interest in Planting
The Florida Citrus Growers’ Institute, presented by the University of Florida Institute of Food and Agricultural Sciences, was held in Avon Park on April 4. The annual educational event drew a good crowd of growers and allied industry. After nearly two decades of fighting HLB, and more recently fallout from hurricanes, those in attendance expressed a renewed sense of optimism …
Mental Health Talk Highlights Peace River Meeting
Marshal Sewell, representing the Mind Your Melon campaign, addressed mental health in agriculture and facing adversity during Peace River Valley Citrus Growers Association’s (PRVCGA) recent annual meeting. “Mental health was a perfect topic for this past year’s events,” said PRVCGA Executive Director Emma Keller. Florida citrus growers have seen production drop to its lowest level since before World War II …
Florida Citrus Still an Economic Force
While the Florida citrus industry has seen its fair share of challenges from HLB and recent hurricanes, the industry still swings a big stick according to research conducted by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). The study, The 2020-21 Economic Contributions of the Florida Citrus Industry, was released in February. Christa Court, UF/IFAS economist and …
Reduce Pests With Natural Enemies
By Jawwad Qureshi A wide range of pests colonize citrus crops. Most of these species target tree canopies, and a few feed on the roots. Damage is either direct through feeding on the plant tissues or it can be twofold if the pest is also responsible for transmitting the pathogens of a disease or making conditions favorable for the disease …
Latest CRDF Funding Includes Oxytetracycline Hydrochloride Projects
The Citrus Research and Development Foundation (CRDF) board of directors convened its March meeting with a busy agenda, addressing fast-moving current events. Discussion focused on newly approved oxytetracycline hydrochloride (OTC-HCl) trunk-injection products currently being applied in groves. The board funded a project to measure the impact of OTC-HCI applications on the Asian citrus psyllid (ACP). Specifically, the study will determine …
New Offerings at Florida Grower Citrus Show
The 2023 Florida Grower Citrus Show, presented by AgNet Media, will be held April 13 in Fort Pierce. The show has a new venue this year — the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) and the adjacent U.S. Department of Agriculture (USDA), Agricultural Research Service, U.S. Horticultural Research Laboratory. …
All In For Citrus Podcast, March 2023
Growers have been deploying several new therapies aimed at improving the health of HLB-infected citrus in recent years. Plant growth regulators like gibberellic acid, 2,4-D and brassinosteroids have demonstrated the ability to improve tree health and help in fruit retention. More recently, direct delivery of oxytetracycline hydrochloride (OTC-HCl) via trunk injection has been approved for use in groves. There is …
New Plantings a Focus of Phytophthora Management
Plant pathologist Megan Dewdney put emphasis on new plantings during a mid-March discussion of phytophthora management for citrus trees infected with HLB. Dewdney is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor at the Citrus Research and Education Center, where she spoke. Dewdney’s presentation was part of an OJ break hosted by UF/IFAS Extension multi-county …