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An entomologist with 10 years of research focused on the state’s iconic citrus industry has joined the faculty of the University of Florida Institute of Food and Agricultural Sciences’ Indian River Research and Education Center (UF/IFAS IRREC). Named Entomologist of the Year in 2012 by the Florida Entomological Society, Jawwad A. Qureshi was selected for a new position as assistant …
Gary England has been named director of the University of Florida’s Institute of Food and Agricultural Sciences (UF/IFAS) Hastings Agricultural Extension Center (HAEC). The center is a resource for residents and agricultural producers in northeast Florida, a region known for both potatoes and surging urban development. “We are extremely pleased to have Gary England serve in this new leadership role …
GAINESVILLE, Fla. — University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have found a new way to detect immature citrus 83 percent of the time, which lets growers know where to apply fertilizer and water and perhaps save on labor costs for the $10.9 billion-a-year Florida industry. By detecting green, immature citrus more accurately and efficiently, …
GAINESVILLE, Fla. — A University of Florida Institute of Food and Agricultural Sciences researcher who uses steam to help treat citrus trees infected by greening will receive this year’s Citrus Engineer of the Year Award. Reza Ehsani, a UF/IFAS associate professor of agricultural and biological engineering, will receive the award June 21 at the 59th Biennial Citrus Engineering Symposium at …
Plant pathologist joins UF/IFAS to help solve citrus industry issues By: Robin Koestoyo FORT PIERCE, Fla. – A plant pathologist with 12 years of experience in plant-microbe interactions has joined the faculty of the University of Florida Institute of Food and Agricultural Sciences’ Indian River Research and Education Center (IRREC) to help citrus growers. Following an international search for a …
A new initiative aims to strengthen the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) ability to respond rapidly when a new invasive pest or plant disease threatens. Edward “Gilly” Evans, director of the UF/IFAS Tropical Research and Education Center (TREC), launched the Challenge 250 initiative. Named in recognition of the nation’s 250th anniversary, it aims to raise …
The Wedgworth Leadership Institute for Agriculture and Natural Resources (WLIANR) has selected 30 Florida participants for Class XIII of its two-year leadership development program. The program is designed for emerging agriculture and natural resources professionals who aspire to greater leadership responsibilities in the private and/or public sectors. The program will begin in November and include 11 seminars spanning 55 days. …
Despite cancer-related ills in recent years, citrus breeder Fred Gmitter continued his work passion, which included development of trees that were more tolerant of or resistant to HLB. “That was our mission,” said Jude Grosser, his fellow citrus breeder at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. Grosser said Gmitter continued …
By Christopher Vincent and Rashmi Kumari Florida summers come with intense sunlight, high temperatures and frequent rain. Just as people use sunscreen to protect exposed skin from intense sunlight, plants can benefit from a protective coating on exposed leaf and fruit surfaces. One way to provide this protection is by spraying a kaolin clay particle film on the tree. Although …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hosted a field day in Jason Griffin’s Polk County grove in mid-September. Griffin has been a long-time collaborator with the university’s citrus breeding program. The event featured many of the later-season OLL varieties developed by Jude Grosser, UF/IFAS professor of plant cell genetics. The OLL line of later-maturing varieties …
By Peter Chaires This fall offers Florida citrus growers several opportunities to see the latest research, evaluate new varieties and connect with researchers in the field. From open houses and variety displays to research tours and field days, these events provide a firsthand look at work that could shape the future of the citrus industry. IRREC OPEN HOUSE The University …
Chilli thrips’ damage in Florida citrus under protective screen (CUPS) should motivate growers to manage weeds more effectively. Lauren Diepenbrock, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor and entomologist, shared that advice during this year’s Citrus & Specialty Crop Expo in Fort Myers, Florida. Diepenbrock said chilli thrips feed on citrus trees but they also …
By Noor Ul Basar, Davie Kadyampakeni and Muhammad Adnan Shahid As citrus trees transition into the fall season, the nutrient demand of the trees will change. Therefore, nutrient application should be adjusted accordingly. NITROGEN Applying nitrogen (N) beyond October through December encourages tree canopy development at the expense of fruit yield and should be avoided. Excessive application of N in …
By Tacy Callies, Clint Thompson and Frank Giles The Citrus & Specialty Crop Expo provided vital information to steer growers to long-term sustainability. After a brief stint in Tampa, the annual event returned home to Fort Myers, Florida, its original location. Citrus and specialty crop growers, along with vendors and industry specialists, convened Aug. 12–13 at the Caloosa Sound Convention …
By John M. Chater Arnold Schumann, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor at the Citrus Research and Education Center (CREC), pioneered the citrus under protective screen (CUPS) production method in Florida. He started his CUPS work over 12 years ago to help provide horticultural tools to growers to continue producing high-quality fruit by means of …
Fungal foliar diseases significantly threaten commercial citrus production by reducing fruit packout and overall crop yield. Tangerines and mandarins are highly susceptible to these pathogens, particularly Alternaria brown spot and citrus scab. In a presentation at the recent Citrus & Specialty Crop Expo, Megan Dewdney, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plant pathologist, outlined proactive management …
By Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman The positive impact of oxytetracycline (OTC) trunk injections for citrus production in HLB-infected trees has been well established. Additionally, there has been extensive work showing that plant defense inducers (PDIs) can help boost tree health and reduce symptom development from a variety of pathogens. Based on this, University of Florida Institute …
There’s been a great deal of effort over the past 15 years or so to develop or identify citrus varieties and rootstocks that have greater tolerance to HLB. That work has resulted in a lot of options to sort through when making selections for planting resets or new blocks. There have been more than 50 cultivars released in recent years. …
By Lauren Diepenbrock Red imported fire ants (Solenopsis Invicta), commonly referred to as fire ants, are commonplace throughout Florida. The pest infests a broad range of habitats, including urban sites, natural areas and production fields. In citrus, a range of impacts from this pest are seen. From a human health perspective, fire ant stings can cause symptoms from mild irritation …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) weed scientist Ramdas Kanissery recently shared information about management of horseweed, a common Florida citrus broadleaf weed. Kanissery is an associate professor at the Southwest Florida Research and Education Center. Following are highlights from his article in the August 2026 UF/IFAS Citrus Magazine. Horseweed is found in citrus tree rows, …
