The use of individual protective covers (IPCs) for young trees prevented Asian citrus psyllid transmission and HLB infection in a trial near Immokalee, Fernando Alferez reported during the recent virtual Citrus Expo. Alferez said citrus trees planted at the Southwest Florida Research and Education Center (SWFREC) in January 2018 and covered with IPCs have been HLB-free for 32 months. Alferez …
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 …
Peptide Could Restore Florida Citrus
CghSAMPa, the peptide found in the fruit of greening-tolerant Australian finger limes, is believed to be the first substance capable of controlling huanglongbing (HLB, also known as citrus greening). University of California, Riverside and Invaio Sciences, Inc. have partnered to advance the peptide research with hopes of bringing an HLB solution to commercialization by 2023. During a recent seminar hosted …
HLB Solution Could Be Available in Three Years
University of California, Riverside (UCR) scientist Hailing Jin believes she has found a substance capable of controlling the deadly citrus greening disease known as huanglongbing (HLB). The potential cure Jin discovered is a peptide found in the fruit of greening-tolerant Australian finger limes, which have been consumed by humans for hundreds of years. Invaio Sciences, Inc., a multi-platform technology company …
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 …
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 …
Area-Wide Pest Management of Florida Citrus
Ariel Singerman, University of Florida assistant professor, made an online presentation during the recent Agricultural and Applied Economics Association annual meeting. He shared his research on the implementation of area-wide pest management throughout the state of Florida. “Diminishment of pest populations by farmers on their own farm is the most widely used strategy for pest control. However, this is compromised …
CRDF Looking at Peptide for HLB
When news broke in July that University of California Riverside (UCR) scientists had found a peptide that might control HLB, Rick Dantzler quickly contacted lead UCR scientist Hailing Jin. Dantzler is chief operating officer of the Citrus Research and Development Foundation (CRDF), which was organized in Florida primarily to find ways to solve or cope with HLB. Jin had found …
Kaolin Particle Films for Citrus Under HLB Pressure
Managing the Asian citrus psyllid (ACP) that spreads citrus greening disease (HLB) has become a crucial task at the forefront of much research. One management option that has proven to reduce ACP populations while increasing tree growth and yield is particle film. During the 2020 virtual Florida Citrus Industry Annual Conference, University of Florida Institute of Food and Agricultural Sciences …
Oak Leaf Extracts Display Curative Effects Against HLB
As demand increases for a cure to huanglongbing (HLB), experts are studying the most effective ways to control the damaging citrus disease. A research project funded by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is focusing on the effects of oak leaf extracts on CLas-infected citrus trees. CLas (Candidatus Liberibacter asiaticus) is the bacteria the causes …
New Resource to Help Fight Citrus Greening
If information is power, Florida citrus growers have a new asset in their fight against citrus greening disease. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) statewide citrus program launched a major revision of a website, providing instant access to a portfolio of information valuable to growers. The http://citrusresearch.ifas.ufl.edu/ website is now easier to navigate and includes …
Growers Urged to Continue HLB Best Practices
The University of California, Riverside (UCR) recently released information regarding a promising new treatment for huanglongbing (HLB) and the Asian citrus psyllid that “effectively kills the bacterium causing the disease with a naturally occurring molecule found in wild citrus relatives.” While this news has exciting potential, UCR and California Department of Food and Agriculture scientists agree that growers should continue …
New Book on the Asian Citrus Psyllid and HLB
A book about the Asian citrus psyllid (ACP) and huanglongbing (HLB), edited by Jawwad Qureshi and the late Phil Stansly, was recently published by the Center for Agriculture and Biosciences International (CABI). Qureshi is an entomologist with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS); Stansly was also a UF/IFAS entomologist. The book is Asian Citrus Psyllid: …
Tools to Protect Young Trees From HLB Being Studied
While citrus growers continue to look for the best practices to fight the deadly huanglongbing (HLB) disease, researchers are taking an integrated approach at protecting young trees by using tools growers already have access to. “In Florida and pretty much every citrus-producing area, we’ve been doing a lot of replanting or resets,” says Lauren Diepenbrock, an assistant professor of entomology …
HLB Update for North Florida, South Georgia
Since 2018, there have been no huanglongbing (HLB) finds in commercial citrus groves in North Florida, and there have still been no disease detections in Georgia groves. In North Florida, HLB was detected in groves in Live Oak in Suwanee County and Perry in Taylor County in 2018, reported Xavier Martini, a University of Florida Institute of Food and Agricultural …
HLB Brings Nutrition Guideline Changes
An updated nutrition guide from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) provides new information for properly fertilizing HLB-impacted trees. Nutrition of Florida Citrus Trees, 3rd Edition was updated by researchers Kelly Morgan and Davie Kadyampakeni. Morgan, director of the Southwest Florida Research and Education Center, says growers have been requesting an update of the guide …
Video in Spanish on HLB Best Practices
The California Department of Food and Agriculture (CDFA), through its Citrus Pest & Disease Prevention Program, has developed a mobile-friendly, Spanish-language training video. It’s for use by field crew supervisors and farm labor contractors prior to harvest. The new tool trains industry managers and workers, including field crews, with best practices to prevent the spread of the Asian citrus psyllid …
HLB a Target of MIT Research
Citrus, olives and bananas are under threat in many areas due to diseases that affect plants’ circulatory systems and that cannot be treated by applying pesticides. Huanglongbing (HLB) is the disease inflicting heavy damage on citrus in Florida and many other parts of the world. These diseases are difficult to detect early and to treat, given the lack of precision …
HLB Research Uses Psyllid Neuropeptides
Researchers with several organizations are in the early stages of investigating the use of neuropeptides found in Asian citrus psyllids as the source for biocontrols for HLB disease. The researchers are with the Boyce Thompson Institute (BTI) at Cornell University, the U.S. Department of Agriculture Agricultural Research Service (USDA-ARS) and the University of Washington. The research team is led by …
New Citrus Greening Treatment Shows Promise
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered another possible solution to the plague of citrus greening that is impacting Florida’s citrus groves. This new information adds to the growing portfolio of knowledge that UF/IFAS scientists are amassing to fight the disease. Led by UF/IFAS microbiology and cell science professor Claudio Gonzalez, a team of plant …