An agricultural engineer whose current research projects include the simulation of agricultural management impacts on water quantity and quality in the upper Floridan aquifer has joined the University of Florida’s Indian River Research and Education Center (IRREC). Sandra Guzmán will lead the center’s irrigation and hydrology program. Guzmán started her position as an assistant professor of agricultural and biological engineering …
Citrus Nutrition Day to Include Field Tours
This year’s Citrus Nutrition Day — at which growers will learn the latest data about growing the fruit, from the soil up through the plants — is expanding to include tours of field trials. After a morning of updates from University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers, participants may tour field sites at the Peace River …
Kaolin Clay May Be Viable Option to Protect Citrus Trees from ACP
Florida citrus growers have begun taking notice of kaolin clay, a powdery white compound, because it can cause Asian citrus psyllids (ACP) to “not take notice” of their groves. Long used to protect other fruit and vegetable crops, kaolin can also conceal citrus trees from hungry psyllids by confusing their visual sensory system, said Michael Rogers, director of the Citrus …
UF/IFAS Event Combines Latest Citrus Varieties with New Breeding Research
On Dec. 4 at the Citrus Research and Education Center (CREC), citrus growers can see if they want to grow the latest varieties from University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) breeders and then learn more about commercializing crops. In the morning, industry members can sample the latest citrus varieties from UF/IFAS breeders. “These are new varieties …
Citrus Advisory System May Help Prevent PFD Losses
A new University of Florida-developed forecasting system could help citrus growers control postbloom fruit drop this winter, despite the predicted El Niño weather pattern that’s expected to bring more rain and moderate temperatures. With an El Niño, forecasters expect above-average rain this winter and early spring. Increased rain improves the chances of fungal spores splashing from flower to flower in …
Laser Technology May Be Key to Rehabilitating HLB Trees
A University of Florida (UF) scientist hopes to improve on laser technology to enhance the efficiency of spray solutions aimed at restoring vitality to greening-affected citrus trees and reducing amounts of chemicals applied. With the updated technology, a laser shoots infra-red energy pulses at citrus tree leaves, said Ed Etxeberria, a professor of horticultural sciences at the UF Institute of …
A Day in the Life of a UF/IFAS Extension Agent: Juanita Popenoe
When growers in Central Florida need help with an alternative crop to citrus, they turn to Juanita Popenoe. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension agent spends her days helping farmers who are looking for options to diversify their groves impacted by citrus greening disease. “Since citrus greening has hit the industry so hard, citrus …
Young Citrus Trees May Benefit from Full Irrigation
Mature citrus trees affected by the bacterial disease huanglongbing (HLB) typically need about 25 percent less irrigation than their healthy counterparts However, that doesn’t necessarily mean young trees with the disease will benefit from water deficits, according to a preliminary greenhouse study by researchers with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Experiments on 1-year-old orange …
Effects of Homobrassinolides on HLB-Affected Trees in Florida
By Fernando Alferez, Christopher Vincent and Tripti Vashisth In the current scenario of widespread infection and severe symptoms of HLB in Florida, horticultural practices that improve plant health in the presence of the disease are needed. For this reason, we sought to follow up on reports of positive effects of a brassinosteroid on infected plants. Brassinosteroids are a relatively newly …
New UF/IFAS Entomologist: From a Kid’s ‘Lab’ to Helping Citrus Growers
As a girl in her garage in Palm Bay, Florida, Lauren Diepenbrock, already a budding scientist, peered through the lens of her microscope and marveled at the magnification. “As a kid, I played in the woods and brought back all sorts of ‘finds,’ including a snake skeleton, none of which my mom allowed in the house,” said Diepenbrock, an assistant …
Citrus Tree Covers Keep Deadly Psyllids Away
University of Florida (UF) scientists are finding that by covering new citrus trees with mesh, they can keep disease-carrying insects from harming the plants. That could be a big step toward stemming the deadly citrus greening disease, UF Institute of Food and Agricultural Sciences (IFAS) researchers say. Asian citrus psyllids can infect the citrus trees with greening, also known as …
Hands-On Training Scheduled at UF/IFAS Citrus Workshop
Florida citrus growers will learn about the latest research from the University of Florida Institute of Food and Agricultural Sciences and test new technology at a workshop in Sebring, Sept. 25-26. UF/IFAS Extension Highlands County is working with statewide UF/IFAS Citrus Extension faculty to bring the latest in scientific studies and a hands-on learning experience to growers. Faculty will cover …
CUPS Protects Citrus from HLB and Storms
A system designed to protect citrus trees from the deadly greening disease withstood the ravaging winds of Hurricane Irma last year, University of Florida scientists say. With reinforcements installed after the storm, they’ll likely withstand even more dangerous storms. Using citrus under protective screening (CUPS), growers can keep the Asian citrus psyllids away from their trees, said Arnold Schumann, a …
Could HLB-Tolerant Mandarins Be Used in Florida Orange Juice?
By Laura Reuss, Fred Gmitter and Yu Wang Sweet orange and mandarin fruits are the most popular citrus crops worldwide. Although often mistakenly considered one and the same, oranges and mandarins are different species with specific distinctions. For instance, mandarins are smaller and easier to peel than oranges. Additionally, mandarins are primarily eaten as fresh fruit, whereas most sweet oranges …
New Monthly Podcast for Citrus Growers
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and Southeast AgNet are partnering to provide the latest news on citrus-related research in a monthly podcast. The podcast, “All in for Citrus,” will launch the last week in September and will feature short interviews with scientists working to find solutions to citrus greening and other devastating citrus diseases. …
A Day in the Life of a UF/IFAS Extension Citrus Agent: Steve Futch
Steve Futch’s official office is located in Lake Alfred at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. But most days you’ll find him working out of his other office — his car — driving from grove to grove in his four-county area. “I go to meet or work with citrus growers …
Control of Citrus Flush Timing Could Improve Psyllid Control
They say timing is everything in life, and that’s certainly true of the Asian citrus psyllid, which has devastated Florida agriculture for the past decade by transmitting citrus greening disease, also known as huanglongbing or HLB. To reproduce, this small, flying insect must lay eggs on citrus “flush” – the tender new leaves and shoots that citrus trees produce several …
Nutrient Recommendations for Citrus Greening
As Florida citrus growers look to recover from the damages of Hurricane Irma and continue to cope with citrus greening, University of Florida (UF) scientists suggest using a complete and balanced nutrient program in their groves. “Mineral nutrition plays a vital physiological role in the growth and development of a plant and as well as in plant-defense response,” said Tripti …
Early Findings Show Plant Hormone May Help in HLB Fight
University of Florida scientists think a group of hormones may eventually help growers battle citrus greening, but they still want to study them before recommending growers use the chemical. Fernando Alferez, an assistant professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), leads a team of UF/IFAS researchers studying the effects of Homobrassinolides …
UF/IFAS Researchers Search for Solutions to Citrus Diseases with Citrus Initiative Funds
From nutritional supplements to managing irrigation to grower outreach and education, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are finding additional ways to support Florida citrus growers in their fight against citrus greening disease. Twelve projects were funded by the state legislature-funded Citrus Initiative program in 2017-2018 that looked at possible short- and long-term solutions that …