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Below you'll see everything we could locate for your search of “huanglongbing”
Another early-detection method being developed works by smelling huanglongbing infections in trees. This method detects the different scents plants give off. Researchers at the University of California, Davis have created a test that could lead to advances in fighting huanglongbing (HLB) disease in citrus. Researcher and professor of mechanical and aerospace engineering, Christina Davis, said the test looks for a …
An adult Asian citrus psyllid (ACP) sample collected from a rural residential property in Imperial County has tested positive for Candidatus Liberibacter asiaticus (CLas), the bacteria that causes huanglongbing (HLB). The ACP sample was collected from a citrus tree on Oct. 30 and was confirmed positive for CLas on Nov. 13. This is the first confirmed CLas-positive adult ACP found …
As the end of the year approaches, now is a good time to look back at what has been learned about huanglongbing (HLB) disease over the last 20 years. In the Citrus Industry section of the December issue of Specialty Crop Grower, Michael Rogers, Citrus Research and Education Center director, provides a comprehensive review of the progress made in fighting …
A lack of adequate soil moisture could make an already challenging situation for Florida citrus growers worse. It is imperative that producers keep applying irrigation amid any prolonged dry period, says Chris Oswalt, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus agent. Oswalt noted that many citrus-producing regions in Florida have had little, if any, rain in …
A recent tour of Brazilian citrus provided Georgia growers with valuable information on how to capitalize on production amid huanglongbing (HLB) disease. Lindy Savelle, executive director of the Georgia Citrus Association and owner of JoNina Farm, was one of seven producers who attended the week-long tour this fall. One of the main observations was Brazil’s strong production despite the prevalence …
The first half of November saw the most sprouting ever observed in Brazilian citrus by the Psyllid Alert, reaching 37.4%. This scenario raises an alarm for citrus growers, since the increase in sprouting is directly linked to the growth of the psyllid population, the insect vector of huanglongbing (HLB) disease. HLB is also known as citrus greening. According to the …
California’s huanglongbing (HLB, also known as citrus greening) quarantine and its Santa Clara Mediterranean fruit fly (Medfly) quarantine were recently expanded. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) in cooperation with the California Department of Food and Agriculture (CDFA) expanded the quarantines. HLB The HLB-quarantined area in Riverside County was expanded by 3 square miles. …
The Florida Department of Agriculture and Consumer Services recently approved TJ BioTech’s request for a Section 24(c) registration related to a fourth year of use of the oxytetracycline (OTC) product ReMedium TI®. The product is a systemic injectable antimicrobial for the control or suppression of huanglongbing (HLB) disease in citrus. The Section 24(c) registration is a special local need registration. …
By Taylor Livingston and Tripti Vashisth Preharvest fruit drop is a major concern for Florida citrus growers, especially in groves affected by huanglongbing (HLB). Environmental stressors such as drought, flooding and cold snaps further accelerate fruit drop and tree decline. Recent field trials in Central Florida evaluated the use of plant growth regulators (PGRs) — specifically gibberellic acid (GA3) and …
By Manjul Dutt Editor’s Note: This is the second article in a series outlining how genetic technology can be using in citrus breeding. Traditional methods for improving citrus, such as crossbreeding different varieties, can be time-consuming due to the creation of a random mix of genes from both parents through a process called genetic introgression. In the article last month, …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are putting genes from a non-citrus plant into Hamlin oranges to develop citrus plants that fight huanglongbing (HLB), also known as citrus greening disease. The newly developed plant is called NuCitrus. It’s based on a protein called Arabidopsis NPR1 (AtNPR1). The new citrus shows strong tolerance to HLB, but not …
The October All In For Citrus podcast features citrus under protective screen (CUPS). Over the past decade, the practice has grown in popularity due to its ability to exclude the Asian citrus psyllid and huanglongbing (HLB) disease. Roughly 1,500 acres of citrus are grown under screen in Florida with more acreage under development. Lauren Diepenbrock, associate professor of entomology at …
As every Florida citrus grower knows, it has been difficult to grow trees and fruit profitably since huanglongbing (HLB) disease was discovered in the state in 2005. Soon after the disease was discovered, officials determined it couldn’t be eradicated largely because the Asian citrus psyllids (ACP) that spread it showed up years earlier and were in virtually all citrus-producing regions. …
By Manjul Dutt Editor’s Note: This is the first in a series of two articles on plant improvement. Next month will feature the timeline for CRISPR-developed trees. Traditional methods for improving citrus, such as crossbreeding different varieties, can be time-consuming due to the creation of a random mix of genes from both parents through a process called genetic introgression, leading …
The University of Georgia (UGA) has disease labs and clinics to help citrus producers determine what diseases are impacting their trees. Jonathan Oliver, UGA assistant professor and small fruits pathologist, highlights the diagnostic facilities that growers can take advantage of. “We have a lab in Tifton, the Plant Disease Clinic, that can accept samples from commercial citrus,” Oliver said. “We …
By Kim D. Bowman, Ute Albrecht and Caroline Tardivo Profitability of citrus in Florida has been severely reduced by the impact of huanglongbing disease (HLB). Previous studies have demonstrated that rootstock selection and injection of established trees with oxytetracycline hydrochloride (OTC) can both significantly improve the health, cropping and fruit quality of trees affected by HLB. However, neither a superior …
Federal and state officials recently expanded the area quarantined for citrus greening disease, also known as huanglongbing or HLB, in California. They expanded the quarantined area in the San Clemente area of Orange and San Diego counties by 81 square miles. The action was taken by the U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) in cooperation …
Populations of Asian citrus psyllids (ACP) have been found in residential and commercial citrus in Georgia’s Lowndes and Wayne counties during the past two months. ACP spread huanglongbing (HLB) disease. In several places where ACP were found, HLB-infected trees were identified nearby. University of Georgia College of Agricultural and Environmental Sciences (UGA CAES) entomologist Apurba Barman provided details about the …
Citrus has a brighter future in Florida and surrounding areas, according to one industry expert. Hopefully, there will be enough farmers left standing to profit from it. Rick Dantzler, Citrus Research and Development Foundation chief operating officer, was a featured speaker at this year’s Citrus & Specialty Crop Expo. He spoke about the industry’s future as it continues to navigate …
Invaio Sciences, The Coca-Cola Company, MIT (Massachusetts Institute of Technology) Solve and Fundecitrus are participating in the Save the Orange initiative. The collaborative effort aims to address citrus greening disease, also known as huanglongbing (HLB). “We bring to the Save the Orange initiative a powerful suite of innovations, including our commercially available Trecise technology,” Invaio stated. According to Invaio, Trecise is …
