(UF/IFAS) — University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension and the Florida Department of Agriculture and Consumer Services (FDACS) are working to identify ways to provide online testing for certified pesticide applicators while in-person testing is unavailable due to COVID-19. All in-person UF/IFAS Extension programs and activities, including pesticide testing, have been postponed or cancelled through …
Rootstock Selection Made Easier
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 …
FDOC Beefs Up Promotions
At the guidance of state health officials in response to coronavirus (COVID-19), the Florida Citrus Commission met telephonically on March 18. At the meeting, commissioners voted to beef up Florida Department of Citrus (FDOC) efforts to promote Florida citrus products. “We agreed to allocate another $500,000 out of our fund balance for media enhancement to our current marketing and promotion …
Effect of Planting Density and Enhanced Nutrition on Grapefruit
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. …
Public Field Hearings on Seasonal and Perishable Produce Postponed
(USTR) — Consistent with recommendations of the Centers for Disease Control and Prevention, the field hearings scheduled in Florida and Georgia on April 7 and April 9 by the U.S. Trade Representative and the U.S. Departments of Agriculture and Commerce will be postponed and rescheduled at a later date. Interested parties are still encouraged to submit written comments and information …
Highlands Growers Hear Marketing Talks
Aaron Himrod indicated he was cautiously optimistic about Highlands County Citrus Growers Association (HCCGA) members’ ability to grow fruit in the face of HLB at the association’s annual meeting on March 12. But Himrod, the outgoing association president, said the industry’s emphasis now needs to be on marketing. That and other activities at the meeting were described by association Executive …
Hemp Advice: Start Small, Be Cautious
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 …
Keeping Fresh Fruit Marketable
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
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
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 …
Advice for Psyllid/HLB Control
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 …
Nutrition: No One Size Fits All
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 …
Hemp Production Has Risks
There are risks and significant costs in growing hemp, Tyler Mark warned about 50 attendees at the Florida Agricultural Policy Outlook Conference 2020. The event, hosted by the University of Florida Institute of Food and Agricultural Sciences Food and Resource Economics Department, took place Feb. 27 at the Citrus Research and Education Center in Lake Alfred. Mark, a University of …
Highlights from the PRVCGA Annual Meeting
The new Peace River Valley Citrus Growers Association (PRVCGA) 4-H Citrus Club had a strong showing at the association’s annual meeting on Feb. 25 at the Turner Agri-Civic Center in Arcadia. Eighteen trees grown by club members were sold at the event. This included several grapefruit and tangerine trees that sold for more than $200 each, and the grand champion …
Environmental Review Required Before Project Implementation
(USDA/FSA) — The National Environmental Policy Act requires federal agencies to consider all potential environmental impacts for federally-funded projects before the project is approved. For all Farm Service Agency (FSA) programs, an environmental review must be completed before actions are approved, such as site preparation or ground disturbance. These programs include, but are not limited to, the Tree Assistance Program, Emergency …
Florida Grove Sales and Prices Reported
SVN | Saunders Ralston Dantzler Real Estate summarized Florida citrus land sales in 2019 during the company’s annual Land Conference Feb. 27-28. Company founder and managing director Dean Saunders pointed out that citrus acreage in Florida is approximately half of its pre-HLB disease level. He said the 300 boxes of production that are now considered good would have been a …
Algal Spot: A Re-emerging Disease
By Megan M. Dewdney Algal spot has not been seen frequently for many years, but in the last few years I have been getting more questions about identification and management. The disease is caused by a green alga, Cephaleuros virescens. The alga is not considered a parasite, as it grows superficially, but it does cause damage to trees if left …
Some Scions Incompatible With US-1283 Rootstock
By Kim D. Bowman and Ute Albrecht The US-1283 rootstock was released by the U.S. Department of Agriculture (USDA) in 2014, based on field performance with Hamlin 1-4-1 sweet orange in trials at two different locations in Florida severely affected by huanglongbing disease. One of these trials was in St. Lucie County and of 14 years duration, while the second …
Nutrition Questions in Need of Answers
A sheet of “Nutrient Management Concept Questions” was passed out at the January Citrus Research and Development Foundation (CRDF) board meeting in Fort Pierce. It included questions that growers and researchers have agreed need to be answered in future nutrition-related research funded by CRDF. Rick Dantzler, CRDF chief operating officer, explains how the questions were developed. “We had a Nutrition …
Working Toward Better Juice Oranges
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) geneticist and plant breeder Jude Grosser discusses the need for new juice oranges and some new cultivar choices. Grosser says one reason for new varieties is the decline in orange juice sales. “In my opinion, the best way to combat that is to have a higher quality orange juice that’s …





























