planting

Planting-Density and Nutrition Trial Results

Ernie Neffplanting

Planting-density and nutrition trials in the Indian River area were among the topics discussed at the Florida Citrus Show earlier this year. The presenter was Rhuanito “Johnny” Ferrarezi, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher at the Indian River Research and Education Center.  A grapefruit planting-density trial utilized a staggered diamond set to maximize trees …

Nursery Diseases at Planting: What to Watch for

Tacy CalliesDiseases, nursery

By Ozgur Batuman and Megan Dewdney Citrus nurseries work very hard and put forth considerable effort to reduce pest and disease problems. However, there continues to be problems with certain diseases, because the nursery environment for growing citrus trees is ideal for many pests and diseases. Basic principles of good nursery sanitation practices together with screening and removing suspected or …

Weed Control May Help Psyllid Management

Tacy CalliesCitrus, Psyllids, weeds

By Ramdas Kanissery, Justin George and Lukasz Stelinski Weed management is a crucial component in Florida’s citrus production. Recent University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research shows that weed management may have additional pest management benefits for citrus growers. Maintaining a weed-free grove and perimeter areas may help improve management of the Asian citrus psyllid (ACP), …

town hall

COVID-19 and Food Safety: Facts vs. Fiction

Ernie NeffFood Safety

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) experts want to help dispel a media-dispersed untruth about COVID-19. UF/IFAS scientists offering accurate information and food safety tips to the citrus industry about COVID-19 include Travis Chapin, Michelle Danyluk, Renee Goodrich Schneider and Keith Schneider. According to the UF/IFAS scientists, the Centers for Disease Control and Prevention, the Food …

HLB and Citrus Root Health

Ernie NeffHLB Management, Root health

“We’re not going to have a silver bullet” for HLB, says Lorenzo Rossi, an assistant professor at the Indian River Research and Education Center. Instead, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) root biologist says that researchers are trying to keep citrus producing profitably. Rossi described some of his research efforts that focus on root health …

long-horned beetle

UF Citrus Entomologist Receives Recognition

Daniel CooperAwards, Industry News Release

(UF/IFAS) — One of the University of Florida’s (UF) most promising professors has been nationally recognized as an industry leader for her scholarship and service. Lauren Diepenbrock, an assistant professor of entomology working at the UF Institute of Food and Agricultural Sciences (IFAS) Citrus Research and Education Center recently received the 2019 Southern Region Integrated Pest Management (IPM) Center Friends …

planting

Rootstock Selection Made Easier

Ernie NeffRootstocks

The recently released fourth edition of the Florida Citrus Rootstock Selection Guide is “way more user friendly” than past editions, one of its authors says. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Rhuanito “Johnny” Ferrarezi says “a completely redesigned website” is what makes the guide so useful for growers. Ferrarezi works as an assistant professor at …

citrus

All In For Citrus Podcast, March 2020

Taylor HillmanAll In For Citrus Podcast

The March episode of the All In For Citrus podcast covers how the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) is operating under COVID-19 restrictions and some of the research that continues. CREC Center Director Michael Rogers starts the episode with the impacts COVID-19 is having on the citrus research team …

researchers

Even in Times of Crisis, Citrus Research Continues

Daniel CooperCitrus Greening, Industry News Release, Research

(UF/IFAS) —The coronavirus has upended daily routines, events and schedules. From work to schools to shopping, every aspect of life changed overnight and continues to change with each passing day. Even with a global pandemic, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers plow forward in their quest to find answers to fighting the devastating disease …

Effect of Planting Density and Enhanced Nutrition on Grapefruit

Tacy CalliesNutrition

By Rhuanito Soranz Ferrarezi, Dinesh Phuyal, Davie Kadyampakeni and Kelly Morgan The Indian River District is the world’s premier grapefruit production region due to a warm, ocean-facing humid climate and Flatwoods soils. The geographical location leads to the production of fruit with thin rinds and exceptional juice and color that has been a high-value export delicacy in Europe and Asia. …

Hemp Advice: Start Small, Be Cautious

Ernie NeffAlternative Crops

There are numerous challenges facing potential growers of industrial hemp in Florida, said Jerry Fankhauser at the recent Florida Agricultural Policy Outlook Conference. Fankhauser is assistant director of the Florida Agricultural Experiment Station and lead oversight manager of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Industrial Hemp Pilot Project. Researchers involved in the project are looking …

North Florida Meeting Addresses Citrus Production Practices

Tacy CalliesProduction

By Clint Thompson Citrus was the focus of an annual meeting held in Quincy, Florida, on March 12. Growers from Florida and Georgia converged at the North Florida Research and Education Center to learn about various citrus management practices for the region. GROWER-GUIDED AGENDA Danielle Sprague, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension agent in Jefferson …

fresh

Keeping Fresh Fruit Marketable

Ernie NeffFresh

Mark Ritenour with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) discusses research efforts to keep Florida’s fresh fruit marketable. Ritenour is a postharvest horticulturist at the Indian River Research and Education Center. Ritenour begins with maximum residue limit requirements for chemicals in fresh citrus for export. A UF/IFAS website provides pesticide residue limits by various major …

Root Hair Enhancement With Low Phosphorus Concentrations

Tacy CalliesNutrition

By Laura Waldo and Arnold Schumann It has been the accepted belief for many years that citrus varieties and rootstocks do not develop root hairs. However, research has shown that root hair growth can be stimulated when soil phosphorus (P) concentrations are extremely low. It is possible that in Florida, citrus roots could fail to produce root hairs due to …

Now Is the Time to Watch for PFD

Ernie NeffPFD

With bloom breaking out in Florida citrus groves, plant pathologist Megan Dewdney recommended growers keep an eye out for postbloom fruit drop (PFD). Dewdney works for the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) in Lake Alfred.  “We have actually observed some diseased flowers,” Dewdney said March 3 at an OJ …

acp

Advice for Psyllid/HLB Control

Ernie NeffHLB Management, Psyllids

Even with the virtually 100 percent level of HLB infection found in Florida citrus trees, reducing Asian citrus psyllids improves tree health and yield, entomologist Lukasz Stelinski says. Stelinski is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor at the Citrus Research and Education Center.   Stelinski reports that trials the late UF/IFAS researcher Phil Stansly …

scientists

Viruses Might Help Control Asian Citrus Psyllids

Daniel CooperCitrus Greening, Industry News Release, Psyllids, Research

(UF/IFAS) — University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are working toward establishing a new biological method that may help growers control the insect that transmits the deadly greening disease into citrus trees. Greening is present in about 95 percent of the citrus trees in Florida, so by using a virus that may kill the insect, …

Nutrition: No One Size Fits All

Tacy CalliesNutrition, Research

By Tripti Vashisth Constant supply and soil application of macronutrients and micronutrients can improve the health and productivity of HLB-affected citrus. A 20 to 50 percent higher than University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recommended rate of micronutrients is beneficial for HLB-affected trees. However, the nutrition program should be customized for each grove, as no one …

citrus

Citrus Nutrition Box Program Yielding Results

Daniel CooperHLB Management, Industry News Release, Nutrition

(UF/IFAS) — A recent program encouraging Florida citrus growers to learn more about the nutrient management of their groves is yielding promising results. Nearly 200 growers and industry representatives attended four workshops in late 2019 to learn about the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Nutrition Box program. UF/IFAS faculty distributed 117 free boxes of …

nutrition

Updates From the Citrus Research and Education Center Director

Ernie NeffAll In For Citrus Podcast

Michael Rogers provided updates on the Citrus Nutrition Box program initiated last fall and on the search for a new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) vice president. He also announced the hiring of a new citrus Extension agent. Rogers is director of the UF/IFAS Citrus Research and Education Center (CREC). NUTRITION BOX PROGRAMRogers said 75 …