New Test To ID Greening Infected Psyllids

USDA’s Agricultural Research Service (ARS) plant pathologists Richard F. Lee and Keremane L. Manjunath have developed a test that reveals whether Asian citrus psyllids are in fact carrying Candidatus Liberibacter asiaticus, one of three microbial species thought to cause citrus greening.

Developed over the past several years and reported in a 2008 article in the journal Phytopathology, the test is being used today by plant health officials in the U.S. and elsewhere.

Assaying psyllids may provide a way to detect citrus greening disease up to two years before symptoms become apparent in afflicted plants, according to the scientists. They’re based at the ARS National Clonal Germplasm Repository for Citrus and Dates in Riverside, CA.

Though not the first to detect HLB in Asian citrus psyllids, the assay apparently still is one of the newest of its kind to be based on what’s known as “real-time qPCR” (short for “quantitative polymerase chain reaction”) technology. The test is comparatively quick and relatively inexpensive, and can be performed by technicians working in any of the labs across the country that already handle PCR assays.
 

Source: USDA

Leave a Reply

Featured Stories

All Vegetables Stories >All Fruits Stories >All Nuts Stories >All Citrus Stories >

The Latest

CitrusHarness The Marketing Power Of Video
September 1, 2014
Multimedia platform is an effective and inexpensive marketing tool for you to attract new customers and keep existing ones loyal to your brand. Read More
Citrus Achievement AwardDespite Industry Challenges, Florida Citrus Leader Has …
September 1, 2014
2014 Florida Grower Citrus Achievement Award winner Mike Sparks feels confident in crop sector's ability to regain strength. Read More
Florida Ag ExpoFood Safety Modernization Act Is On The Plate
September 1, 2014
Florida Ag Expo agenda to serve up important features of looming regulations. Read More
CEU SeriesCEU Series: Put Weeds Out To Pasture
September 1, 2014
No matter where they are, plants out of place can be problematic. Read More
TomatoesProduction Reaches An All-Time High For Processing Toma…
August 29, 2014
A record high is predicted for the 2014 processing tomato crop. Read More
CitrusFlorida Department Of Citrus Knocks NPR Piece Over Juic…
August 28, 2014
Agency goes to bat for the industry regarding statement slighting OJ's health benefits. Read More
Disease ControlLate Blight Update Reveals Heightened Activity
August 28, 2014
While several states in the Northeast have confirmed the presence of late blight, the disease has not been reported in North Dakota or Minnesota. Read More
CitrusFlorida Energy Firm Charged Up About Citrus Biomass Pot…
August 28, 2014
Machine called a game-changer when it comes to a cost-effective, efficient way for tree removal and re-purposing. Read More
EquipmentNew Tractors Improve Maneuverability And Operator Contr…
August 28, 2014
The Magnum Rowtrac tractors from Case IH meet growers’ cropping needs through a wide variety of row spacing and belt options.   Read More
NutsCalifornia County Passes Ordinance To Protect Walnut Gr…
August 27, 2014
Verification of ownership needed to complete sales of valuable nuts. Read More
NutsAlmond Growers Hit By Russian Import Limits
August 27, 2014
Growers reflect on changes to export market in light of produce ban. Read More
Farm ManagementLeadership And Management Expert To Speak At California…
August 27, 2014
Daniel Goleman will make presentation at California State University-Fresno. Read More
CitrusNational Scientific Summit On Herbicide Resistant Weeds…
August 27, 2014
Topics to be covered include the economics of proactively managing herbicide resistance, education and outreach efforts, and incentives and regulatory initiatives. Read More
FruitsFlorida Organic Group Dedicated To Serving Growers, Com…
August 27, 2014
Education and development programs are plentiful for interested producers. Read More
VegetablesExperimental Herbicide Technology Blasts Weeds In Rows
August 27, 2014
The technology uses an air compressor to spray corncob grit on both sides of a crop, killing young weeds. Read More
Disease ControlFungal Disease Outbreak Hits Pacific Northwest Vegetabl…
August 27, 2014
An outbreak of blackleg, light leaf spot, and white leaf spot can be significant problems in several vegetable crops.   Read More
CitrusClean Water Conundrum: Ditch The Rule Or Ditch The Myth…
August 26, 2014
Regulation inundation causing a rising tide of confusion for farmers. Read More
BerriesMichigan State University Extension Offers Tips To Prev…
August 26, 2014
Humidity, rainy periods conducive to disease development. Read More