Impact of High-Density Planting and Enhanced Nutrition on HLB-Affected Grapefruit

Tacy CalliesNutrition

By Rhuanito S. Ferrarezi, Waqar Shafqat, Hernan Soto, Mark Ritenour, Lorenzo Rossi,Davie Kadyampakeni, Evan Johnson and Kelly Morgan Florida citrus growers have been using high-density planting and different soil and foliar fertilizer application strategies to compensate for the adverse effects of huanglongbing (HLB). Recent studies indicate that high-density plantings and enhanced nutritional programs with higher micronutrient levels, such as the …

Irrigation and Nutrient Management BMPs

Ernie NeffBMPs, Irrigation, Nutrition

A Citrus Expo presentation about best management practices (BMPs) focused on what growers should be doing now in their irrigation and nutrient management programs. The presentation noted that current BMPs were developed prior to HLB’s discovery in Florida in 2005, and that studies are underway to revise the citrus BMPs for nitrogen and phosphorus. The presentation was created by University …

Optimizing Irrigation and Young Tree Management

Tacy CalliesIrrigation

By Davie Kadyampakeni and Sandra Guzmán Young citrus trees require optimal irrigation management for vigorous vegetative growth, leaf flushing and the establishment of a dense canopy. Poor practices such as infrequent irrigation or not using irrigation scheduling tools could be costly. Young tree growth also could be impacted by excessive water and nutrient losses. Crop water stress in young trees …

new grove

Updating Guidelines for New Plantings

Ashley RobinsonAll In For Citrus Podcast, HLB Management, Research

Researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) are taking a whole-systems approach to update current recommendations for new plantings. A research project, “Establishing Healthy Citrus Plantings in the Face of Persistent HLB Pressure,” is led by UF/IFAS entomologist Lauren Diepenbrock. According to Diepenbrock, current guidelines were created pre-HLB and therefore are out of date …

Sneak Peek: May 2021 Citrus Industry

Tacy CalliesSneak Peek

New citrus technology and tried-and-true techniques are among the article topics in the May issue of Citrus Industry magazine. Yiannis Ampatzidis, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor, discusses several ways artificial intelligence is being used to improve citrus production and reduce negative environmental impacts. Among the topics he covers in his article are automated …

Updates on Irrigation and Nutrient Management

Ashley RobinsonIrrigation, soil

Proper irrigation and nutrient management are necessary to maximize root density and tree health, especially in trees infected with HLB. Davie Kadyampakeni, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor, shared a few irrigation and nutrient research updates during the March episode of the All In For Citrus podcast. IRRIGATION RECOMMENDATIONS Young citrus trees require optimal …

Sneak Peek: April 2021 Citrus Industry

Tacy CalliesSneak Peek

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 …

Irrigation and Nutrition Management in the Era of HLB

Ashley RobinsonIrrigation, Nutrition

A solid nutrition and irrigation program can enhance the productivity of HLB-affected trees and improve citrus tree health, potentially making production profitable even under HLB conditions. This was the subject of Davie Kadyampakeni’s talk during a March 9 OJ Break virtual meeting held for citrus growers. Kadyampakeni is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant …

irrigation

Irrigation Scheduling to Optimize Tree Performance

Tacy CalliesIrrigation, Tip of the Week

By Davie Kadyampakeni Proper irrigation scheduling applies an appropriate volume of water to a citrus grove at the appropriate time based on tree need, soil properties and weather conditions. Applying water in the right amount, right quantity and at the right time is very important for getting the best out of citrus trees. Several tools are available for determining when …

weather

Improved Weather Data at Growers’ Fingertips

Tacy CalliesWeather

Weather is one of the most important factors affecting crop growth and production. The Florida Automated Weather Network (FAWN), a University of Florida-operated service, was created to assist growers in making decisions related primarily to irrigation scheduling and cold protection. Currently, the FAWN network operates 42 stations located from Jay to Homestead that record and report every 15 minutes on …

agricultural engineer

Guzmán Honored for Irrigation Work

Ernie NeffAwards

Precision irrigation scientist Sandra Guzmán was recently named a 2020 Outstanding Young Extension Worker by the Florida Section of the American Society of Agricultural and Biological Engineers. Guzmán is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher with expertise in artificial intelligence for water management. She works at the UF/IFAS Indian River Research and Education Center …

Fruit Drop of Citrus in Summer Months

Tacy CalliesProduction, Research

By Tripti Vashisth, Megan Dewdney and Lauren Diepenbrock This article summarizes what is known about summer fruit drop in healthy citrus trees and those with huanglongbing (HLB). Also discussed is how HLB can affect early fruit development and exacerbate fruit drop. Additionally, strategies to reduce summer fruit drop are included. Citrus flowers profusely, but less than 2 percent of the …

Irrigation Scheduling Methods Affect Water Use

Tacy CalliesIrrigation

By Sandra M. Guzman and Rhuanito S. Ferrarezi Irrigation scheduling has been one of the most important management practices to improve crop production. For citrus, there are multiple options to schedule irrigation, including evapotranspiration-, plant- and soil-based methods. These methods can provide different water requirement estimates based on environmental variables, plant uptake or water content in the soil. Although each …

weather

FAWN Website Now Easier to Use

Daniel CooperIndustry News Release, Weather

The Florida Automated Weather Network (FAWN), a University of Florida-operated service aiding agricultural decision-makers statewide since 1997, relaunched its website with a new look and additional features. “Our main goal in revamping the site was to make it more efficient for users,” said Rick Lusher, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) project manager for FAWN. “One …

Fabric Mulch Groundcovers Save Water

Tacy CalliesProduction

By Sandra M. Guzmán New challenges require new solutions. This is especially true with water and nutrient management in Florida citrus. Currently, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) team is analyzing fabric mulch groundcovers for young lemon trees on a commercial scale. During the last year, the use of groundcovers has shown water savings of …

irrigation

Irrigation Management Advice for HLB Trees

Tacy CalliesHLB Management, Irrigation

Water is a limiting factor in Florida citrus production during the majority of the year. Florida citrus trees may require irrigation throughout the year due to the low water-holding capacity of sandy soils and the warm subtropical climate with distinct drought periods during the spring.  Davie Kadyampakeni, assistant professor of soil and water sciences at the University of Florida Institute …

Irrigation Management for Young Citrus Trees

Tacy CalliesIrrigation

By Davie Kadyampakeni, Arnold Schumann, Mongi Zekri and Chris Oswalt Irrigation management is important for achieving optimal citrus tree growth and promoting high water- and nutrient-use efficiencies in young trees. In the era of HLB, poor water-management practices, such as infrequent irrigation, lead to water stress in trees resulting in limited growth and impaired root development. On the other hand, …

Hands-on Session Was a Hit

Ernie NeffCitrus Expo

A great new addition to the Citrus Expo program this year was a hands-on session that allowed growers to participate in scientific demonstrations while interacting with University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers. Expo seminar coordinator Tripti Vashisth said all 11 demonstration stations were crowded. “It went really well, and we got very good attendance — …

Citrus Expo Offers Interactions

Ernie NeffAll In For Citrus Podcast, Citrus Expo

Growers will have opportunities to learn in interactions with University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers at Citrus Expo on Thursday afternoon, Aug. 15. “We wanted to do something a little bit different to keep folks involved and keep folks coming back for that second afternoon” of Citrus Expo, says Michael Rogers, director of the UF/IFAS …

Agricultural-Environmental Leadership Award Winners Include Citrus Growers

Tacy CalliesIndustry News Release

Florida Commissioner of Agriculture Adam H. Putnam announced the recipients of the Commissioner’s Agricultural-Environmental Leadership Award, which recognizes the environmentally innovative farming techniques of Florida’s farmers and ranchers. This year’s recipients are: Jim Strickland of Blackbeards’ Ranch in Manatee County, Chuck Allison of Wild Goose Farms in Umatilla and James Shinn of Shinn Groves/ Tree O’Groves in Lake Alfred. Florida’s …