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 …
March Citrus Crop Forecast Sees Slight Decreases
Mark Hudson of the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA/NASS) reported the latest update to the 2019-2020 citrus crop forecast on March 10. Non-Valencia Oranges The Florida non-Valencia forecast is lowered 1 million boxes to 30 million boxes. The row count survey conducted Feb. 25-26 showed 98 percent of the early-midseason rows are harvested. California remained at …
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 …
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 …
Updates From the Citrus Research and Education Center Director
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 …
Sneak Peek: March 2020 Citrus Industry Magazine
The March issue of Citrus Industry magazine focuses on fertilization and other production practices to keep citrus trees healthy. Tripti Vashisth’s article summarizes a three-year University of Florida (UF) study that looked at 10 different controlled-release fertilizer treatments in two different locations. The research results revealed that when it comes to citrus nutrition, one size does not fit all. Surprisingly, …
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 …
All In For Citrus Podcast, February 2020
This month’s podcast includes three timely interviews on topics of interest to the citrus industry. Citrus Research and Education Center Director Michael Rogers gives an update on the Citrus Nutrition Box Program that started last fall, including the individualized nutrition recommendations being made by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) experts. Rogers also shares the latest …
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 …
Root Health Update
Evan Johnson, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plant pathologist at the Citrus Research and Education Center, updates efforts to help citrus tree roots cope with HLB. He starts by noting that around 10 years ago he and former UF/IFAS researcher Jim Graham discovered “that HLB causes severe damage to the root system.” They hoped …
Youth Grow Award-Winning Citrus Trees
The Highlands County Youth Citrus Project is a 4-H program that teaches 8- to 18-year-old students how to successfully grow citrus in Florida. Thirty-four citrus trees (Valencia on C-54 Carpenter) were entered into the program this year. All of the trees were grown in a protective cover and tested by the state of Florida. The orange trees will be on …
Managing Orange Production Costs
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension economist Ariel Singerman discusses a recent article he wrote titled “How Much Can Florida Growers Afford to Spend on Caretaking Processed Orange Groves?” The article addresses the grove management decisions growers must make in the face of recent orange price declines. It points out that an average grower would …
Research Addressing Industrial Hemp Production Challenges
Future growers of industrial hemp in Florida will have the advantage of research being conducted now by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Zach Brym, agronomist at the Tropical Research and Education Center in Homestead and research coordinator of the UF/IFAS Industrial Hemp Pilot Project, summarizes the work being done. “We’ve taken the last couple …
‘Doubling Down’ on Citrus Communications
“This year we’re really doubling down and looking to improve our communications even further,” says Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC). “Communications continue to be our focus in the statewide IFAS citrus program.” A big part of the communication effort is getting information to growers …
CRDF Acts on Bayer HLB Effort
The Citrus Research and Development Foundation (CRDF) on Jan. 28 did its part to continue a Bayer Crop Science effort to develop new technologies to combat HLB. “What we agreed to do was partner with the California Citrus Research Board (CRB), Pepsi and Coca-Cola and share equally in the costs (of continuing the HLB effort) for another six months,” said …
Purple Guts? You’ve Got Lebbeck Mealybugs!
One of Lauren Diepenbrock’s props at a Jan. 14 OJ break at the Citrus Research and Education Center was a paper plate bearing the message “Easy diagnostic: smashed lebbeck mealybug = purple guts.” Diepenbrock, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist, explains the meaning of the plate’s message. UF/IFAS researcher Lance Osborne found a lebbeck …
HLB: Learning From Brazil
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Rhuanito (Johnny) Ferrarezi reports on a trip to Brazil to learn about HLB control methods. Ferrarezi, who works at the UF/IFAS Indian River Research and Education Center, made the trip with former multi-county citrus Extension agent Steve Futch. “Their disease incidence is way lower than in Florida,” Ferrarezi says. …
Georgia Citrus Industry Gaining Ground
By Clint Thompson Georgia’s citrus industry is expected to double in acreage by the end of 2020, according to Lindy Savelle, president of the Georgia Citrus Association. The projected increase from 1,000 to nearly 2,000 acres this year presents the growers with an interesting challenge as they prepare for when these trees start producing fruit. “We project by the end …




























