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Below you'll see everything we could locate for your search of “greening”
A group of scientists working in California, New York and Washington has found that Lisbon lemon trees had less of a molecular response than Washington navel orange trees to the pathogen that causes HLB. That pathogen is Candidatus Liberibacter asiaticus (CLas). In part, this might be because leaves of infected lemons tended to accumulate micronutrients, which led to less of …
Beneficial insects could be a citrus grower’s best friend. In a time when producers are applying insecticides to control the Asian citrus psyllid, the vector of citrus greening disease, it’s important to preserve the psyllids’ natural enemies, like lady beetles and lacewings. Jawwad Qureshi, University of Florida entomologist, implores growers to scout their groves periodically to see what insects are …
Amid arguments about the troubled citrus industry and the health of farmworkers, a chemical company is challenging a state decision to block aldicarb, a pesticide that could help fight citrus greening disease. AgLogic Chemical, LLC filed an administrative challenge on May 11, about three weeks after the Florida Department of Agriculture and Consumer Services (FDACS) denied an application to use …
Interest in citrus continues to spike in North Florida and South Georgia. Georgia acreage has doubled over the past year. North Florida acreage has increased by another 300 to 400 this spring, says grower Kim Jones. He owns a citrus packing facility in Monticello, Florida, and is president of the Cold Hardy Citrus Association. “We’re seeing a whole lot of …
As temperatures increase across Florida, so does the risk for huanglongbing (HLB) disease, known as citrus greening. While the southern and central portions of the state remain vulnerable to HLB and Asian citrus psyllids (ACP) that spread the disease, growers in North Florida and South Georgia have so far been spared. But Xavier Martini, University of Florida entomologist at the …
Two Florida citrus grower associations expressed disappointment over the recent Florida Department of Agriculture and Consumer Services’ (FDACS) decision to deny the use of the pesticide aldicarb in Florida citrus. “We are frustrated in the decision as we believe aldicarb will provide a powerful tool in the fight against citrus greening and can be used safely,” said Florida Citrus Mutual …
Two growers expressed different views about the recent decision to deny the use of the pesticide aldicarb in Florida citrus. The denial was made by the Florida Department of Agriculture and Consumer Services (FDACS). One termed the decision “disappointing.” The other referred to it as a “a blessing.” “It is disappointing to lose any tool that would strengthen our existing …
University of Maryland virologist Anne Simon and the company she founded, Silvec Biologics, have successfully vaccinated laboratory hosts against citrus tristeza virus (CTV). They are now focusing on HLB, also called citrus greening. The vaccination induces trees to produce their own therapeutic agents. Silvec’s vaccination concept is based on the discovery of a novel infectious RNA that the company calls …
The Florida Department of Agriculture and Consumer Services (FDACS) denied AgLogic Chemical LLC’s state pesticide registration application for the pesticide aldicarb on citrus crops in the state of Florida. Aldicarb is an N-methyl carbamate insecticide primarily used as a nematicide. Responsible for the worst known outbreak of pesticide poisoning in North America, aldicarb is one of 28 active pesticide ingredients …
University of Florida Institute of Food and Agricultural Sciences entomologist Lauren Diepenbrock provided an update on lebbeck mealybug during the 2021 Florida Citrus Growers’ Institute. The pest, first found in Florida commercial citrus in 2019, feeds on and damages citrus, causing up to 70% fruit drop in heavily infested groves. According to Diepenbrock, damaged fruit will not be marketable for …
Sometimes growers must think outside the box to remain sustainable amid high input costs and devastating diseases. That is the situation facing citrus growers who are struggling to remain viable in the era of citrus greening. What if seaweed could be used to aid in the quality of citrus production? Seaweed is a biostimulant that is part of the biological …
Sarah Strauss, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) soil microbiologist, shared initial results from a UF/IFAS cover crop research trial during the March 23 OJ Break virtual meeting for citrus growers. According to Strauss, use of cover crops has received increased interest by growers as a method to sustainably and economically improve soil health and …
Citrus Research and Development Foundation (CRDF) directors on March 23 voted to request research proposals from scientists in nine topic areas for the coming year. The nine areas, mostly focusing on HLB, are: Understanding the mechanisms for increasing fruit retention in HLB trees by manipulating hormonal balance in the fruit and the tree or by altering the relationship between vegetative …
Psyllid sprays have been a point of contention for Florida citrus growers. Under endemic HLB conditions, high psyllid control costs have cut into the grower’s bottom line, which has already been hit by reduced production. So, what is the right time to spray and how can a grower remain sustainable and profitable? Lukasz Stelinski, University of Florida professor of entomology …
By Sylvia Willis, Amy Vu and Jamie Ellis When people think of Florida, the first thing that comes to mind is Fresh From Florida oranges. Florida accounts for 44 percent of total U.S. citrus production. Citrus, like many other fruits, vegetables and specialty crops, requires certain inputs to grow and produce fruit. But how are pollinators and the production of …
By Marcelo Pedreira Miranda, Haroldo Xavier Linhares Volpe, Renato Beozzo Bassanezi, Ivaldo Sala and Juliano Ayres Huanglongbing (HLB), or citrus greening, is a notable threat to the citrus industry worldwide and was reported in the central region of São Paulo state (SPS) in Brazil in 2004. HLB then spread quickly throughout SPS, requiring the citrus industry to adapt rapidly to …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers are collaborating on ground-breaking research projects to fight against HLB. They are working with researchers at the University of California-Riverside (UC-Riverside), Texas A&M and Washington State University on a project to field-test new citrus cultivars for tolerance or resistance to HLB. The research is funded by the U.S. …
Florida citrus production has decreased for almost two decades. According to Marisa Zansler, director of economic and market research at the Florida Department of Citrus, the two main factors for the state’s steady decline are citrus greening (huanglongbing, known as HLB) and Hurricane Irma. Zansler presented staggering statistics during the Florida Agricultural Policy Outlook Conference on Feb. 26 that showed …
Fertilizers help crops reach maximum yields while fungicides prevent diseases. But what if there were products available that could further enhance the fruiting qualities all growers hope to achieve every season? IMPROVED FRUIT PRODUCTIONIf growers can increase the level of flowering hormones in their crops, this will allow for a better fertilization process that will generate improved fruit set and …
Citrus Research and Development Foundation (CRDF) Chief Operating Officer Rick Dantzler on Feb. 23 detailed CRDF spending on efforts to solve HLB. According to Dantzler, the Florida-based organization spent $140.7 million between its formation in 2009 and 2020. The vast majority of CRDF’s focus has been on HLB. Dantzler’s report came moments after University of Florida (UF) Institute of Food …
