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 …
Viruses Might Help Control Asian Citrus Psyllids
(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
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 Nutrition Box Program Yielding Results
(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 …
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 …
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 …
Keeping Fresh Citrus Safe
Michelle Danyluk describes training that was provided Feb. 11 to help fresh citrus growers comply with the federal Produce Safety Rule. Danyluk is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor and Extension specialist at the Citrus Research and Education Center (CREC). She and several other UF/IFAS faculty conducted the training at the CREC. The Produce …
Planning for Foliar Disease Management in 2020
By Megan Dewdney and Evan Johnson In 2019, the trend of fewer problems with foliar fungal diseases for Florida citrus continued, which was good news for the industry. Despite the El Niño conditions during the spring, little postbloom fruit drop (PFD) was observed because the temperatures were low (< 75 F) when it rained during bloom. The southern parts of …
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 …
All In For Citrus Podcast, January 2020
The first episode of the year of the All In For Citrus Podcast includes efforts to get research information out to growers, threshold numbers on production costs that are a little shocking with current juice prices the way they are, nutrition programs that continue to help manage HLB-affected trees, and breeding work to solve citrus challenges. Senior Correspondent-at-Large Ernie Neff …
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. …
Orange Opportunities
New sweet orange cultivars for processing can be harvested throughout the Florida citrus season. By Jude Grosser, Fred Gmitter and Bill Castle Florida orange juice has always been the gold standard among the growing portfolio of fruit juices and blends available to consumers. However, the now endemic citrus greening disease or huanglongbing (HLB) threatens this status by causing reduced fruit …
Eco-Mowing Is Part of Cover Crop Research
Cover crop research in Southwest Florida will include looking into the effectiveness of eco-mowing, or moving mowed clippings under the tree canopy rather than leaving clippings in row middles. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) soil microbiologist Sarah Strauss discusses numerous aspects of cover crop and compost research being conducted by her and other UF/IFAS scientists. …
Winter Weather Watch Program for Growers
Multi-county citrus Extension agent Chris Oswalt describes the Winter Weather Watch available to growers in the west, central and southwest regions of Florida. The program runs from Nov. 15 to March 15 and costs growers $100. Oswalt says the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) established the program in the 1960s to provide agricultural forecasts via …
The ABCs of Psyllid Management
By Lukasz L. Stelinski and Jawwad A. Qureshi Getting rid of Asian citrus psyllids (ACP) from your grove is almost like trying to remove the sand from a beach. You can make a huge noticeable impact, but getting every last grain of sand will be impossible. What makes the prospect of ACP management so complex is achieving it in a …