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Below you'll see everything we could locate for your search of “psyllid”
An economic update on the Florida grapefruit industry delivered at the recent Florida Citrus Show indicates that the few grapefruit growers who remain struggle mightily to make a profit. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) economist Ariel Singerman delivered the report, which he summarizes. “Production costs are only up marginally on a per-acre basis; only up …
Column sponsored by the Citrus Research and Development Foundation As early as 1965, high-temperature treatments were shown to reduce HLB bacterial infection without killing the tree. Trials [Ehsani, University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS)] using portable, semi-transparent, plastic houses were placed over trees, achieved temperatures of above 120 F for several hours over several days, and reduced …
By Stephen Futch and Ariel Singerman This article summarizes observations on citrus production during a June 2017 trip to Araraquara and the Southwest region of the state of São Paulo, Brazil. INDUSTRY OVERVIEW The citrus industry in São Paulo is divided into five production regions (North, Northwest, Central, South and Southwest). This regional classification is based upon climatic characteristics and …
It may not be long before a grower sips coffee and works on the computer while a robot roams the grove checking for HLB-spreading psyllids and other pests and diseases. That’s thanks to machine vision software. University of Florida Institute of Food and Agricultural Sciences scientist Arnold Schumann tells about research he has been conducting. Schumann says researchers have developed …
With citrus greening devastating Florida’s $8.6 billion-a-year citrus industry, three University of Florida scientists will use $10.52 million in federal grants to study ways to help growers cope with the disease, including research on genetic editing that may produce potentially resistant fruit and trees. Since greening — or huanglongbing (HLB) — was first reported in Florida in 2005, Florida’s citrus …
The U.S. Department of Agriculture’s (USDA) National Institute of Food and Agriculture (NIFA) announced awards to combat citrus greening disease. The funding to support research and Extension programs is made through the emergency Citrus Disease Research and Extension Program (CDRE). CDRE was authorized as part of the 2014 Farm Bill. “The need to advance research and Extension to develop management …
By Bill Castle and Pete Spyke There’s an old story that goes something like this: A farmer was out walking one evening and fell into a hole deep enough to require help to get out. Later, another farmer was walking by and jumped into the hole. The farmer in the hole was astounded and asked, “Why did you do that?” …
Two University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professionals spoke at the recent Cold-Tolerant Citrus Production for the Southeastern Coastal Plain event about the current state of the industry. UF/IFAS entomologist Xavier Martini said he has seen growth in interest for cold-tolerant citrus between 2016 and 2017. He also said he has seen an increase in the …
By Len Wilcox The grower-funded California Citrus Research Board (CRB) is celebrating its 50th anniversary this year. Headquartered in the Central Valley city of Visalia, under the direction of president/CEO Gary Schulz, the CRB awards more than $7 million each year to researchers throughout California. Since 2008, CRB has focused much of its efforts on huanglongbing (HLB), with approximately $33 …
By Jawwad A. Qureshi and Larry Duncan Root weevils are a major pest group for many kinds of plants, with at least nine species that colonize citrus. Species commonly infesting citrus include Diaprepes root weevil (Diaprepes abbreviates), blue-green citrus root weevils (Pachnaeus litus and Pachnaeus opalus), little leaf notcher (Artipus floridanus), Fuller rose beetle (Asynonychus godmani) and Sri Lanka weevil …
Column sponsored by the Citrus Research and Development Foundation This article addresses the idea that beneficial, naturally occurring soil- and root-based bacteria might aid in the management of HLB. The background for field trials described below is work by Nian Wang of the University of Florida Institute of Food and Agricultural Sciences, funded in part by the Citrus Research and …
Economist Tom Spreen thinks advanced production systems (APS) and citrus under protective screen (CUPS) offer hope for some growers in the face of HLB. Spreen, a University of Florida Institute of Food and Agricultural Sciences professor emeritus, discussed APS and CUPS at a recent Gulf Citrus Growers Association economic seminar in LaBelle. Spreen says growing with APS “means you have …
Citrus Industry magazine subscribers have one more Christmas present to open. The January issue comes packaged with a complimentary copy of a brand new magazine, Vegetable and Specialty Crop News. Brought to you by AgNet Media, VSCNews is geared to growers in the Southeast. It contains production-related information as well as updates on big-picture agricultural issues like trade reform and …
Integrated pest management (IPM) strategies and copper are both good control measures for common citrus foliar fungal diseases, as well as for citrus canker. So says University of Florida Institute of Food and Agricultural Sciences plant pathologist Ozgur Batuman. Batuman summarizes information he presented at a fall field day and seminar attended by about 60 people at the Southwest Florida …
University of California Riverside (UCR) is committed to a major offensive against huanglongbing (HLB, or citrus greening disease), as the threat is marching ever closer to commercial citrus orchards in California. The only confirmed cases in Southern California have been in residential trees in Los Angeles and Orange counties, including near the UCR campus. But some experts believe it is …
By Jim Gravley The entire citrus industry has changed since the arrival of HLB (citrus greening). To ensure success and produce a quality product, the grower must adapt and truly understand the issues brought on from the infection of HLB. The disease was officially identified in 2005 in South Florida, and we are still fighting to save this great industry. …
By: Brad Buck, 352-294-3303, bradbuck@ufl.edu GAINESVILLE, Fla. — Grapefruit grows better under screen houses than in unprotected groves because the indoor facilities keep out the insect that causes citrus greening, new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research shows. Protecting citrus from greening is essential, UF/IFAS researchers say. The disease, first detected in Florida in 2004, …
University of Florida Institute of Food and Agricultural Sciences researcher Arnold Schumann showed off a semiautonomous vehicle at the recent Citrus Research and Education Center 100th anniversary celebration. The vehicle is used in the center’s citrus under protective cover (CUPS) facility, designed to keep trees free of HLB-spreading psyllids. Schumann discusses the vehicle and its uses. “We designed that vehicle …
By Tripti Vashisth and Troy Gainey Pruning is one of the oldest horticultural practices that changes the form and growth of a tree. The pruning process 1) adjusts tree shape and the ratio of framework to fruit-bearing shell of the canopy, 2) alters the shoot/root ratio and 3) changes the carbohydrate (food storage) status of the tree. Under Florida weather …
A grower survey conducted by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturist Tripti Vashisth shows growers are managing their nutrition programs precisely. Vashisth discusses growers’ focus on providing a constant supply of nutrients, the amount of nutrients applied, use of humic and fulvic acids, and the number of psyllid sprays applied. “Their (growers’) philosophy for fertilization …
