Research Summaries
These summaries are part of the publication, Keeping Florida Citrus Growers Informed, August 2025 The research is being led by UF/IFAS citrus scientists located at UF/IFAS research centers in Gainesville, the Citrus Research and Education Center in Lake Alfred, the Southwest Florida Research and Education Center in Immokalee, the Indian River Research and Education Center in Fort Pierce, and the North Florida Research and Education Center in Quincy. This research advances our knowledge about growing citrus in Florida including fighting HLB, improved grove management, and better nutrition recommendations. While definitive recommendations and findings are still being developed, these updates offer insights into our ongoing progress.
Click a summary below to learn about the current UF/IFAS citrus research. To view and download the complete booklet, visit https://issuu.com/ufifascitrus. Past research summaries can be located on the UF Digital Collections.
- Understand and Identify Huanglongbing Tolerance in Citrus and its Relatives
- Early-season Sweet Oranges and Grapefruit with Improved Tolerance to Huanglongbing
- Utilizing the Huanglongbing (HLB) Tolerance Traits in Citrus Relatives to Build Better HLB Tolerant Rootstocks
- Progress in Improving Citrus Resistance Against Huanglongbing via CRISPR Genome Editing
- Biotechnological Methods for Building a Better Citrus
- Cybridization for Plant Improvement
- The Importance of Long-term Variety Trials - The Millennium Block
- Modulating the Anthocyanin Pathway to Develop Improved Sweet Oranges
- New Scion Releases Restore NFC Juice Quality in the Battle against Huanglongbing
- New Scion and Rootstock Releases Offer Hope in the Battle against Huanglongbing
- Can Finger Limes Help ‘Valencia’ Trees be More Tolerant of Huanglongbing?
- UF SunLime and UF RedLime: Two New Finger Lime Cultivars for the Specialty Citrus Market
- Make Transgenic Citrus Lines with Robust Huanglongbing Tolerance
- Citrus Tristeza Virus (CTV) Expressed Antimicrobial Peptides Induce Tolerance to Huanglongbing
- CTV-T36 Vectors as a Tool to Induce Efficient Flowering in Citrus Seedlings
- Using Citrus Tristeza Virus to Dissect Plant Response to Identify Citrus Targets for CRISPR Modification
- Optimal Combination of Bt Toxins and Gene Silencing RNAs for Management of Citrus Root Weevil
- Edge Effects and Soil Properties Driving the Distribution of Diaprepes abbreviatus
- Developing Bulimulus sp. Management in Florida Citrus
- Tools for Organic Management of Asian Citrus Psyllid
- Influence of Tamarixia radiata on Asian Citrus Psyllid in Brassinosteroids-treated Citrus
- Optimizing dsRNA Concentration for RNA Interference in Asian Citrus Psyllid
- Assessing Entomopathogenic Fungi for Asian Citrus Psyllid Management
- Integrated Huanglongbing Management for Florida Citrus
- Endophytes as Sources of Antimicrobials to Control Huanglongbing
- What is Causing that Greasy Green Color on my Grapefruit?
- How Far can the Inoculum for Citrus Black Spot Travel Up?
- Use of Systemic Acquired Resistance Inducers to Protect New Flushes from Huanglongbing and Citrus Canker
- Oxytetracycline Trunk Injection Tips
- The Month of Injection Affects Fruit Size, Juice Quality, and Oxytetracycline Residues
- Oxytetracycline Injections - Sectoring and Phytotoxicity
- Oxytetracycline Fruit Residues
- Potential Rotational or Alternative Partners of Oxytetracycline for Huanglongbing Management
- Oxytetracycline Efficacy is Impacted by Exposure to Field Conditions
- Oxytetracycline Adoption and Outcomes Survey - Growers’ Costs and Yields
- Evaluation of Trunk-injected Antibiotics for Huanglongbing Management in Citrus
- Improving the Systemic Uptake of Therapeutic Compounds by Trunk Injections
- Enhancing the Delivery of Therapeutics into Citrus Phloem by Linking Sugar Molecules
- ATIS: Automated Trunk Injection System to Treat Huanglongbing-affected Citrus Trees
- Learning about Greasy Spot within the Citrus Under Protective Screen Production System
- Developing Management for Chilli Thrips in Citrus Under Protected Screen Production Systems
- Establishing Biological Control in Citrus Under Protective Screen Production Systems: Florida Red Scale and Aphytis melinus Interaction
- Individual Protective Covers
- Recovering Huanglongbing-affected Young Citrus Trees
- Life After Individual Protective Covers: Protecting New Flushes from Huanglongbing
- Combining Individual Protective Covers and Brassinosteroids to Prolong Young Citrus Tree Health
- Brassinosteroids and Fruit Quality and Yield
- Combining Horticultural Practices to Improve Yield of Huanglongbing-affected Citrus
- Keeping Cool with Particle Films
- Made in the Shade
- Understanding the Mechanism Behind Lower Fruit Drop and Enhanced Huanglongbing Tolerance in the ‘Parson Brown’
- Developing Site-Specific Nitrogen and Phosphorus Rates for Florida Citrus
- Comparing Two New Nutrition Programs Utilizing Controlled- Release Fertilizer
- Precision Nutrient Management to Rejuvenate Huanglongbing-affected Sweet Orange
- The Impact of Organic Acids on Soil Health and Acidification
- Assessing the Therapeutic Effects of Soil Amendments
- Improving Soil Health with Cover Crops and Other Soil Amendments in Florida Citrus Groves
- Measuring Soil Health in Florida Citrus Groves
- Herbicides and Huanglongbing: Assessing Indaziflam Use in Florida’s Citrus Groves
- Greener and Cleaner Row-Middles: Using Cover Crops for Sustainable Weed Control in Citrus
- Recovering from Hurricanes
- Agroview: AI-Driven Citrus Analytics at Scale
- Insuring the Crop Using Actual Production History
- REON: A Web-Based Platform for Actionable Huanglongbing Research