Research Leads To Better Identification Of Disease-Carrying Aphids

In work that could cut back on insecticide use, USDA scientists have found a way to distinguish aphids that spread plant viruses from those that do not.

The researchers used protein biomarkers to differentiate between virus-spreading and virus-free aphids. The findings mark the first time that protein biomarkers have been linked to an insect’s ability to transmit viruses.

Aphid-transmitted viruses decrease crop yields and reduce the quality and quantity of fresh foods. Spraying insecticides can control aphids and reduce the incidence of some viruses, but not all aphids transmit viruses.

Agricultural Research Service (ARS) scientists Michelle Cilia and Stewart Gray have found they can identify disease-carrying aphids by examining the types of proteins in their cells. Cilia and Gray work in the Biological Integrated Pest Management Unit at the ARS Robert W. Holley Center for Agriculture and Health in Ithaca, NY.

ARS is USDA’s chief intramural scientific research agency.

The researchers knew from previous work that for aphids to pick up and transmit viruses, the virus must be able to interact with specific aphid proteins that direct movement of the virus through the insect and back into a plant during feeding. By studying greenbug aphids in the laboratory, they discovered that the lab-raised insects’ ability to transmit yellow dwarf viruses was linked to the presence or absence of nine biomarker proteins found in the insect cells.

They then analyzed greenbug aphids collected from cereal crops and non-cultivated fields and found the aphids consistently transmitted yellow dwarf virus only when they carried most, if not all, of the nine proteins. Field samples were collected by ARS colleagues John Burd and Melissa Burrows at the agency’s Wheat, Peanut and Other Field Crops Research Unit in Stillwater, OK. The aphid does not need all nine proteins to spread the virus, but there are some that are essential.

The discovery in the lab was published in the Journal of Virology, and the field population study was reported in Proteomics. The findings are expected to lead to development of a test to identify potential disease vectors. Cilia and Gray also are collaborating on an expanded effort to test whether biomarker-predictor proteins can be found in other insects.

Leave a Reply

Insecticides Stories
InsecticidesHow To Scout For Corn Earworms In Corn
July 28, 2014
In her weekly report, University of Missouri Agronomy Specialist Jill Scheidt discusses what to look for when scouting for corn earworm. Read More
InsecticidesEPA Grants Besiege Insecticide Additional Approvals
June 18, 2014
EPA has granted additional registration approvals for the use of Syngenta's Besiege insecticide on sorghum, cereal grains and peanuts. Read More
InsecticidesPrevathon Insect Control Approved For Cereal Crops
January 13, 2014
DuPont's Prevathon insect control powered by Rynaxypyr has received U.S. EPA registration for use on cereal crops, including wheat, most other small grains and sorghum. Read More
InsecticidesInsecticides 2014: Insect Pressure, Solutions On The Rise
January 2, 2014
Bt resistance, weather concerns and myriad other issues have led to an increase in both traditional pest pressures as well as new pests. Read More
Top 100 Articles
CropLife 100BRANDT Commemorates National Ag Day
March 20, 2015
The Illinois agriculture community gathered at BRANDT global headquarters on March 18 to celebrate National Ag Day behind this year's theme Sustaining Future Generations. Read More
Wheat Growers, North Central Farmers Elevator Pursue Merger
CropLife 100Wheat Growers, North Central Farmers Elevator Pursue Merger
March 3, 2015
Two CropLife 100 retailers — South Dakota Wheat Growers (ranked No. 11) and North Central Farmers Elevator (No. 19) — have entered into a Letter of Intent to unify the two companies into a newly named cooperative. Read More
Growmark Group
CropLife 100GROWMARK In 2015: Back, To The Future
March 2, 2015
The nation’s third largest ag retail organization is simultaneously moving forward while remembering its past. Read More
CropLife 100Pinnacle Expands Sanders Brand In The South
February 27, 2015
Pinnacle has acquired Hopkins Seed and Chemical in Qulin, MO, which expands the company's Sanders brand to nine Southern states. Read More
CropLife 100Pinnacle Launches New Providence Agriculture Location In Indiana
February 27, 2015
Pinnacle Agriculture Holdings — ranked No. 6 on the CropLife 100 — has established a new retail location in New Castle, IN, which will operate as part of Pinnacle's Providence Agriculture brand. Read More
Carl Casale of CHS
CropLife 100Cooperative CHS Returns $518 Million To Owners
February 23, 2015
The 2015 cash return to owners is based on CHS net income of $1.1 billion, the company's second highest on record. Read More
Latest News
Crop InputsSyngenta Louisiana Plant Poised For 2015 Production
March 26, 2015
As the 2015 planting season gets underway, growers across the country will need crop protection products to combat pests and Read More
Lake Erie Nutrient Stewardship
LegislationOhio Lawmakers Finalize Phosphorus Restrictions
March 25, 2015
State lawmakers on Wednesday finalized new rules designed to curb toxic algal blooms on Lake Erie, calling the regulations a major step forward in addressing the problem. Read More
Spreaders17 Fertilizer Spreaders For 2015
March 25, 2015
Manufacturers shoot for versatility and accuracy in this year's crop of fertilizer spreaders. Read More
Industry NewsMonty’s Hires Mid-South Product Consultant
March 25, 2015
Monty's Plant Food Co. has hired Matt Woodring as a Product Consultant for portions of Central Kentucky and Tennessee.    Read More
StewardshipMapShots Integrates With DriftWatch
March 23, 2015
Growers and agricultural providers using AgStudio FARM and AgStudio PRO can now view vital information about specialty crops and apiaries through a recent integration with the DriftWatch Specialty Crop Site Registry from FieldWatch, Inc. Read More
Crop InputsWorld Health Organization Report Contradicts Scientific…
March 23, 2015
A new report from the World Health Organization has classified glyphosate with a “2A” rating as a probable carcinogen, a Read More
Eric SfiligojSeed Treatment Stays Necessary
March 20, 2015
Grower-customers looking to scale back spending in 2015 won’t consider seed treatment, say experts. Read More
HerbicidesMARCH MADNESS: Industry Rallies Around Glyphosate Safet…
March 20, 2015
A newly published report from the International Agency for Research on Cancer (IARC) classifies the herbicide glyphosate as a "2A-rated possible carcinogen" and the ag industry responds by circling the wagons. Read More
ManagementRetail Week: Precision survey, a technology acquisition…
March 20, 2015
Editors Paul Schrimpf and Eric Sflilgoj discuss recent travel, the upcoming precision adoption survey, and an unusual sighting at a Read More
CropLife 100BRANDT Commemorates National Ag Day
March 20, 2015
The Illinois agriculture community gathered at BRANDT global headquarters on March 18 to celebrate National Ag Day behind this year's theme Sustaining Future Generations. Read More
Crop InputsBioSafe Launching TerraGrow Soil Inoculant
March 20, 2015
TerraGrow is a blend of beneficial bacterial and fungal spores and nutrients carefully designed to promote healthier soil and crops. Read More
Winter Wheat
AdjuvantsMax Systems Debuts New Adjuvant NanoRevolution 2.0
March 18, 2015
Added to a tank mix of glyphosate at the conservative rate of two to four ounces per acre, NanoRevolution 2.0 has proven effective in killing resistant weed species that had already had up to two applications of the leading glyphosate product. Read More
Photo credit: United Soybean Board/the Soybean Checkoff
Seed/BiotechAgnition Launches Microbial Catalyst Seed Treatment
March 18, 2015
Agnition it has launched Commence for Soybeans, a microbial catalyst seed treatment for soybeans that stimulates microbial activity for healthier soil and a superior growth environment. Read More
4R Certified, Nutrient Stewardship Council,
StewardshipTyler Grain & Fertilizer Now 4R Certified
March 18, 2015
The 4R Nutrient Stewardship Certification Program has announced Tyler Grain & Fertilizer Co. in Smithville, OH, has been added to Read More
V.R. "Swede" Roskam
ManagementFormer MACA President V.R. ‘Swede’ Roskam P…
March 17, 2015
Former Mid America CropLife Association President V.R. “Swede” Roskam died unexpectedly in Wheaton, IL, on March 13, 2015 at the age of 85. Read More
corn field
Industry NewsNovaSource Announces Organizational Changes
March 17, 2015
Bob Gestring has accepted the position of Director of Sales, North America and Kyle Coleman has accepted a promotion to the role of Marketing Director, North America. Read More
Chuck Gates, Ohio CCA of the Year
ManagementOABA Honors 2015 Certified Crop Adviser Of The Year
March 16, 2015
Chuck Gates, of Tiffin, OH, has been named the 2015 Certified Crop Adviser of the Year by the Ohio Certified Crop Adviser Board and will receive $1,500 provided by DuPont Pioneer. Read More
Bee on a Sedum
StewardshipNew Bayer Bee Initiative To Provide Pollinators With Ne…
March 16, 2015
Bayer CropScience is launching Feed a Bee, a major initiative to increase forage for honey bees and other pollinators, including growing 50 million flowers and providing additional forage acreage in 2015. Read More