Rushville Republican

Agriculture

October 1, 2012

New soybean virus found, confirmed in Indiana

RUSHVILLE — Soybean vein necrosis virus, a new disease in Indiana soybeans, was confirmed earlier this month, a Purdue Extension plant pathologist says.

A soybean sample exhibiting symptoms of the virus, also known as SVNV, was sent to Purdue’s Plant and Pest Diagnostic Laboratory. The laboratory sent the plant sample to Agdia Inc. for further testing. Molecular test results confirmed the presence of a tospo virus, or a disease causing cell death, in the sample.

“SVNV is one of our newer viruses that we’ve confirmed in soybeans,” said Kiersten Wise. “This is the first year that we’ve confirmed it in Indiana, although we’ve seen suspect symptoms in the past.”

While the disease doesn’t appear to affect yield, it does cause foliar symptoms similar to herbicide injury, including yellowing in ornear plant veins and light green patches or mottled green and brown speckled areas associated with veins. Leaves will show a blotchier, scorched appearance in shades of orange and yellow. As the season progresses, Wise said the virus could cause tissue death, which can leave a scorched appearance on severely affected plants.

Since the discovery of SVNV by a University of Arkansas professor in 2008, the virus had been reported in 12 states: Arkansas, Delaware,Kentucky, Kansas, Illinois, Maryland, Missouri, Mississippi, New York,Pennsylvania, Tennessee and Virginia.

The virus is spread by thrips, insects that infest a variety of plant species.

“When those insects are feeding on the soybeans, they may be transmitting this virus as well,” Wise said. “We suspect that’s why we’re seeing more symptoms this year, because we’ve had more thrips damage in soybeans.”

Calling the virus an “oddity,” she said farmers are seeing more of it this year than ever before.

“It’s all across Indiana from the Kentucky border all the way up to the Michigan border. And growers are concerned about what these blotches are on their soybeans,” Wise said.

But even with the high incidence of SVNV, she doesn’t recommend any treatment.

“We are still learning more about this virus, and we’re going to continue to monitor it in the future,” Wise said. “But at this point in time we wouldn’t recommend any changes in production practices.”

Wise encouraged growers and crop consultants to inspect any still-green soybean plants for symptoms of soybean vein necrosis and email images of possible cases to kawise@purdue.edu

 

1
Text Only
Agriculture
  • Indiana Pork and ISDA partner to feed hungry at state fair INDIANAPOLIS - Indiana Pork and the Indiana State Department of Agriculture (ISDA) are partnering to feed the hungry at the Indiana State Fair. This partnership is made possible through a livestock promotion grant awarded from ISDA to Indiana Pork.In

    August 1, 2014

  • High cattle prices, availability of replacement cows persist CORPUS CHRISTI – Texas cattle producers looking to restock herds may choose to examine all options as financial dynamics have changed due to historic high cattle prices, according to Texas A&M AgriLife Extension Service economists.A recent Financial

    August 1, 2014

  • Purdue ag economists: There's potential help to counter low prices WEST LAFAYETTE - Farmers already seeing corn and soybeans prices plummet as the markets expect bountiful harvests have some potential safety nets that might help protect them financially, two Purdue University agricultural economists say.Corn and soy

    August 1, 2014

  • Purdue Day at Indiana State Fair set for Aug. 8 WEST LAFAYETTE – Purdue Day at the Indiana State Fair on Aug. 8 will feature more than 35 tents and exhibits that include several cooking demonstrations, presentations by the College of Veterinary Medicine and a performance by Purdue Musical Organiz

    August 1, 2014

  • USDA reminds farmers of 2014 Farm Bill Conservation Compliance changes WASHINGTON - Agriculture Secretary Tom Vilsack today reminded producers that changes mandated through the 2014 Farm Bill require them to have on file a Highly Erodible Land Conservation and Wetland Conservation Certification (AD-1026). The Farm Bill

    July 25, 2014

  • Extension farm tour to feature organic vegetable production WEST LAFAYETTE - The organic vegetable production and fertility management practices at an Ohio farm will be showcased in a Purdue Extension tour of the operation near Cincinnati.The tour will be from 9 a.m. to noon Aug. 5 at EcOhio Farm, 2210 S. Mas

    July 18, 2014

  • ag-rv071814-soybean variety pic Gene discovery could lead to better soybean varieties for northern United States WEST LAFAYETTE – Researchers from Purdue University and the University of Nebraska-Lincoln have discovered a soybean gene whose mutation affects plant stem growth, a finding that could lead to the development of improved soybean cultivars for the nor

    July 18, 2014 1 Photo

  • U.S. farmers plant record soybean crop, less corn DES MOINES, Iowa (AP) — The nation’s farmers planted the largest soybean crop on record this year by devoting millions of acres of land to the crop that had been used for growing corn, the U.S. Department of Agriculture said Monday.Farmers planted 84

    July 3, 2014

  • Manure Management Field Day presents new technology NORTH MANCHESTER — The Wabash County Soil & Water Conservation District and the Conservation Cropping Systems Initiative will host a free Manure Management Field Day on July 29th at Brubaker Farms. The half-day program will address application techno

    July 3, 2014

  • Purdue, OSU assisting in ag meeting for Corn Belt farmers WEST LAFAYETTE — Purdue and Ohio State Universities are part of an organization that is sponsoring a meeting this summer to help Corn Belt farmers make their agricultural systems more resilient and sustainable.The Resilient Agriculture Conference Au

    June 27, 2014