By Brenda Eubanks Burnette I was looking for inspiration for this month’s column and was trying to tie it in with this issue’s focus, which is grove management. Lo and behold, I came across a 44-page booklet I had tucked away called the “Book of Truth for Planters of New Groves” by Ocklawaha Nurseries, Inc. of Lake Jem, Florida. The …
Needle-Assisted Trunk Infusion for Trees
With the devastating impacts of HLB on the citrus industry, growers are seeking alternative solutions to reduce Candidatus Liberibacter asiaticus (the bacteria that causes HLB) levels in trees and prevent disease-induced decline. Researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) are developing an automated method for delivering therapeutic liquid materials into the vascular tissue of citrus …
All In For Citrus Podcast, September 2020
National recognition, new findings on black spot control, and research on antimicrobial peptides highlight the September episode of the All In For Citrus podcast. Citrus Research and Education Center Director Michael Rogers starts the episode with the announcement that the University of Florida was ranked in the top 10 of U.S. News and World Report’s Top Public Schools list. Rogers …
Alico Sells 10,702 Acres to State of Florida
Alico, Inc. on Sept. 11 announced the state of Florida purchased, under the Florida Forever program, approximately 10,702 acres of Alico Ranch for $28.5 million. The transaction was pursuant to an option agreement between the state of Florida and Alico. John Kiernan, Alico president and chief executive officer, said the acreage was on the west side of the ranch. “This is …
Row-Middle Weed Management Methods
By Ramdas Kanissery, Miurel Brewer, Davie Kadyampakeni and Sarah Strauss Florida growers face problems with weeds throughout the year due to favorable weather conditions that allow rapid proliferation and lush growth of weeds in groves. While a weed-free tree row is desired to minimize competition with citrus, it is also essential to manage the weeds or vegetation in the row …
Organic Solutions to Citrus Greening Sought
The Organic Center is currently working with the University of Florida, the University of California, Riverside, and several citrus growers and industry members to conduct a national review of how citrus greening disease is impacting organic growers and other industry members. The information will be used to develop a large-scale holistic research project proposal targeted toward protecting organic citrus growers from citrus …
Brazil Releases Updated Orange Crop Forecast
Fundecitrus and its cooperators announced an update to Brazil’s 2020-2021 orange crop forecast on Sept. 10. The new figure for the São Paulo and West-Southwest Minas Gerais citrus belt is 286.72 million boxes. This is 0.36 percent less oranges than the initial forecast released in May, and 25.87 percent less oranges than the 2019-2020 crop. The forecast represents one of …
HLB Preparedness in Australia
Learning how other countries manage huanglongbing (HLB) will help shape Australia’s response if the damaging citrus disease hits its shores, according to New South Wales (NSW) citrus pathologist Nerida Donovan. One of the biggest lessons so far has been the importance of treating the psyllid vector with the same respect as the disease. Donovan, with the NSW Department of Primary …
Gibberellic Acid: Increase Fruit Size and Yield, Reduce Drop
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 …
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, …
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 …
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 …
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 …
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. …
Psyllid Study to Determine Degree of HLB Risk
University of California Riverside Extension Specialist Monique Rivera said that funding for a new research project to study the Asian citrus psyllid (ACP) has been approved. The project will take a closer look at the phenology of huanglongbing (the citrus disease ACP spreads) and its prevalence in psyllid populations. The scientists will be looking for patterns that will help them …
All In For Citrus Podcast, August 2020
August brings a special episode of the All In For Citrus podcast as listeners hear from the new leader of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and get an update on digital offerings. Citrus Research and Education Center Director Michael Rogers starts the episode by announcing a redesign to the UF/IFAS Citrus Research website. The …
World Non-Orange Citrus Production to Drop
Global production of non-orange citrus — tangerines/mandarins, grapefruit, lemons and limes — in 2019-20 is estimated to be lower than the previous year, according to the U.S. Department of Agriculture’s Foreign Agricultural Service. TANGERINES/MANDARINSGlobal production is estimated down 400,000 tons for 2019-20 to 31.6 million with declines in the European Union (EU), Morocco, Turkey and the United States more than …
Cover Crops and Nematicides for Sting Nematode Management
By Larry Duncan, Johan Desaeger and Sheng-Yen Wu The citrus row middle habitat changed profoundly beginning in the 1970s as mowing replaced disking for weed management. This change ended the costly cycle of cutting and regrowing citrus roots near the soil surface and reduced soil erosion, among other benefits. Mowing also allowed a seasonal succession of native plants to flourish, …




























