By Tripti Vashisth and Megan Dewdney This article discusses the use of gibberellic acid (GA), the naturally occurring plant hormone, on huanglongbing (HLB)-affected trees. The results were generated from a 3-year trial in which Valencia trees were treated with GA in the fall. The outcomes suggest that GA can be effectively used for synchronizing and suppressing profuse flowering without negatively …
Face Coverings Essential in the Citrus Industry
By Michelle Danyluk and Ben Chapman COVID-19 has changed so much about how we operate. Managing COVID-19 amongst workers is extremely important. Its impacts on the health of employees can have catastrophic effects when operations are shuttered by health departments if the virus spreads out of control. This has happened in many food and agriculture sectors. There have been hundreds …
Pest Management Under Bags
Many Florida citrus growers in recent years have used individual protective covers (IPCs), often referred to as “bags,” for pest management, especially to protect young trees from HLB-spreading Asian citrus psyllids. Lauren Diepenbrock addressed the benefits and challenges of IPCs at this year’s virtual Citrus Expo. Diepenbrock is an assistant professor of entomology at the University of Florida Institute of …
Mutual Reacts to Federal Plan for Imports
A recently announced Trump administration plan (see the full 28-page document) to address the threat posed by increased foreign imports to American producers of seasonal and perishable fruits and vegetables does not specifically address citrus. But Florida Citrus Mutual (FCM) Executive Vice President/CEO Mike Sparks noted that many of Florida’s other fruits and vegetables weren’t specifically addressed in the plan, …
Oak Leaf Extract and Mulch for HLB
Researchers on the Indian River have proved “there is something in the oak leaf that can work” against HLB, said Lorenzo Rossi. “I’m not saying that I found the cure, and I’m not saying that oak extract will save the citrus industry.” He described oak extract, and possibly oak mulch, as another tool against HLB. Rossi, a University of Florida …
AI Will Be Another Tool for Citrus Greening
Artificial intelligence (AI) will likely help growers and researchers cope with citrus greening (huanglongbing, known as HLB) and other citrus problems over the long run. That’s the belief of J. Scott Angle, the new head of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Angle, UF’s vice president for agriculture and natural resources, says AI is a …
U.S. Citrus Production Declines
Citrus utilized production in the United States for the 2019-20 season totaled 7.78 million tons, down 4 percent from the 2018-19 season. The production figures come from the Citrus Fruits 2020 Summary, a U.S. Department of Agriculture National Agricultural Statistics Service document. California accounted for 54 percent of total U.S. citrus; Florida totaled 42 percent, and Texas and Arizona produced …
Kanissery Wins Extension Award
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) weed scientist Ramdas Kanissery has earned a Dallas Townsend Extension Professional and Enhancement Award. Kanissery works at the Southwest Florida Research and Education Center (SWFREC) in Immokalee. “The award recognizes a state Extension specialist for demonstrating an outstanding ability to plan and implement Extension programs that address needs that have …
CRAFT Cycle Two Deadline Is September 4
Time is running out for commercial citrus growers in Florida to apply to participate in Cycle Two of the Citrus Research and Field Trial (CRAFT) program. The deadline to apply is Friday, Sept. 4. The application process is open to growers with a minimum of 20 acres of planned solid-set or reset plantings. Cycle Two of CRAFT covers up to …
Sneak Peek: September 2020 Citrus Industry
In just two days, more than 1,100 Citrus Expo participants viewed 28 educational videos. If you didn’t get a chance to visit the virtual Citrus, Vegetable & Specialty Crop Expo on Aug. 19–20, you can find highlights from the event in the September issue of Citrus Industry magazine. The educational videos will remain on the Citrus Expo website through the …
How Has COVID-19 Impacted Your Operation?
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have opened the second round of surveys on the impact of COVID-19 on the state’s agriculture and marine industries. The surveys are intended to capture changes in operations for the first half of the year. The Assessment of COVID-19 Impacts on Florida surveys were first deployed in mid-April and …
COVID-19 and Farm Labor
The Florida Department of Agriculture and Consumer Services (FDACS) is encouraging growers to ensure that the farm labor contractors with whom they work pledge to implement COVID-19 workplace safety guidance issued by the Centers for Disease Control and Prevention. FDACS issued an addendum to be signed by farm labor contractors (see here) and a training acknowledgment form to be signed …
Cover Crops for Citrus ‘Really Encouraging’
Healthy soil has high percentages of soil organic matter, which improves water-holding capacity, nutrient cycling and retention, and provides nutrients for microbes, along with other benefits. Unfortunately, Sarah Strauss noted, most citrus soils in Florida typically have 1 to 2 percent soil organic matter, “which is basically non-existent.” Strauss and other scientists are researching two ways of improving soil organic …
Growers, NRCS Team Up on Conservation
The U.S. Department of Agriculture’s Natural Resources Conservation Service (NRCS) works with Florida growers, other landowners and local soil and water districts to implement conservation practices. NRCS offers more than 170 individual practices and suites of practices that can be used to improve soil health, water quality, air quality and wildlife habitat. When planning these practices, NRCS staff helps producers …
UF/IFAS Citrus Website Greatly Improved
In the past, the citrus team at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has heard some complaints about its Citrus Research and Education Center (CREC) website. When it asked growers what information they needed, “the feedback we got was that it’s really hard to find information on our website,” says Michael Rogers, director of the …
CRDF Addresses Leaf Sampling and Breeding Research
The Citrus Research and Development Foundation (CRDF) board recently chose leaf sampling timing and frequency as its top priority for a new nutrition research project. The board also agreed to create a Select Committee on Plant Improvement to help plant breeders decide which new cultivars should go into final field trials. CRDF Chief Operating Officer Rick Dantzler discusses the board’s …
Consumer Acceptance of Genetic Technology
Given that genetic engineering is a possible solution to citrus greening, understanding public perceptions of genetic technologies is important. Lisa House, director of the Florida Agricultural Market Research Center and a professor in the Food and Resource Economics Department at the University of Florida, made an online presentation during the recent Agricultural and Applied Economics Association annual meeting. She discussed …
PIECES OF THE PAST: Great Crate Finds
By Brenda Eubanks Burnette I recently bought several old citrus crates for the Florida Citrus Hall of Fame collection: Shiloh Fruit Packing Company, with the Indian Chief label Indian River Citrus Sub-Exchange packed by Graves Brothers Company in Wabasso, featuring the Flo brand label On Top Groves from Wetumpka Fruit Co., with the On Top Blue brand label The A. …
Citrus Production Guide Available
The 2020-2021 Florida Citrus Production Guide is now available. See the online version of the University of Florida Institute of Food and Agricultural Sciences resource. Hard copies of the guide can be obtained at local UF/IFAS Extension county offices. Get the list of citrus Extension agents here. It is always best to email or call the agent ahead of time …
Root Architecture, Propagation Method and Citrus Tree Growth
By Ute Albrecht, Sameer Pokhrel and Kim D. Bowman The rootstock has received increased attention as a management strategy to alleviate the devastating effects of HLB. In commercial citrus nursery production, rootstocks are typically propagated by seed. This is possible because citrus produces polyembryonic seeds with nucellar embryos, which develop into plants that are genetically identical to the mother plant. …





























