Goss’ Bacterial Wilt Moves To Indiana

It doesn’t get a lot of fanfare, but Goss’ bacterial wilt is a concern for corn growers. The disease, which infects susceptible varieties of sweet corn, popcorn, and hybrid corn, was recently confirmed in northern Indiana by Purdue University’s Plant and Pest Diagnostic Laboratory.

The confirmed samples are from popcorn and hybrid corn fields in Pulaski County. The disease is common throughout the Midwest in limited areas and years and is currently only confirmed in the one Indiana county. Kiersten Wise, Purdue Extension field crops disease specialist and other specialists believe that early hailstorms and recent heavy rains and windstorms likely contributed to the infection and dispersal of Goss’ wilt in Indiana fields.

This is not a concern for consumers and has no impact on food safety, but it is more of a concern for producers, Wise says. There also may be implications for infected grain that’s scheduled to be exported.

Philip Marshall, director of Indiana Department of Natural Resources’ Entomology and Plant Pathology Division, says his staff is reviewing the phytosanitary requirements for certificates required for export.

"We don’t know how much impact the bacteria will have on the corn crop in this area because we don’t know what kind of resistance hybrids grown in Indiana have," Wise says. "Additional hail storms and wind-driven rain could spread Goss’ bacterial wilt locally; however, it’s a very manageable disease."

The disease, first discovered in Nebraska and caused by a subspecies of the bacterium Clavibacter michiganensis, is characterized by distinct light tan to gray lesions filled with dark specks.

"Lesions will often appear shiny due to bacteria oozing on the leaf surface," Wise says. "Blighted areas are common in susceptible varieties and can be confused with drought stress. The dark flecking and shiny areas within lesions distinguish Goss’ wilt from other bacterial diseases.”

The disease infects the plant’s vascular tissue, causing a systemic infection that can lead to wilting and stalk degradation. The infected tissue appears orange to brown in color. Wise says unlike Stewart’s wilt, Goss’ wilt does not rely on insects for disease transmission, but is both seedborne and seed transmitted. The plant has to have wounds for dispersal, she said.

"Once seed to seedling transmission occurs, disease spreads in areas that have experienced hail damage or wind-driven rain," Wise says. "It’s important that farmers recognize and identify this disease as a bacterial disease because fungicides will not control it.”

Because the disease can live in infected corn residues on the soil surface, growers with infected fields need to use tillage to break down the residue and incorporate it into the soil, she said. The affected field also should be rotated to a different crop from this year’s.

Visit www.ianrpubs.unl.edu/epublic/live/g1675/build/g1675.pdf for more information on Goss’ bacterial wilt.

Leave a Reply

Latest News
Crop InputsLand O’Lakes Announces Minnesota Water Quality Pa…
May 25, 2016
Governor Mark Dayton and Land O’Lakes, Inc. President and CEO Chris Policinski today announced a new public-private partnership to protect Read More
Soybean Plant closeup
Industry NewsMonsanto Rejects Bayer Bid; Open To More Talks
May 25, 2016
Monsanto Co, the world’s largest seed company, turned down Bayer AG’s $62 billion acquisition bid as “incomplete and financially inadequate” Read More
Corn close up
Crop InputsArysta LifeScience Establishes Global Headquarters In R…
May 25, 2016
Arysta LifeScience has announced plans to relocate its global headquarters from West Palm Beach, FL, to Cary, NC, over the Read More
fertilizer blending and storage, Top 100
BlendersCHS Dakota Expansion Features AGCO’s GSI InterSys…
May 25, 2016
The continued growth of precision agriculture has increased farmer use of customized fertilizer blends best-suited for their soil conditions. Several Read More
ManagementAgriculture 3.5: A Bumpy Road Ahead
May 24, 2016
You may have read my article a few years ago on Agriculture 3.0, which is a term I coined to Read More
Topcon’s X30 display with CropSpec sensors
EquipmentGPS Autosteer Systems: Product Updates From Precision A…
May 24, 2016
Throughout 2015 GPS Steering solutions continued to evolve from what was once an after-market add on, to today’s cab where Read More
Trimble TMX-2050 In-Cab Display
Eric SfiligojThe Precision Ag Revolution Continues
May 24, 2016
It’s funny how much “the first time” tends to mean to someone as they get older. I sometimes can’t recall Read More
Eric Wintemute, AMVAC
Precision AgAMVAC Ups The Ante With New Precision Ag Technology
May 24, 2016
A potentially industry-changing at-plant soil treatment system from American Vanguard Corp., or AMVAC, is coming soon to large growers in Read More
Dry and Liquid Plant
CropLife 100CropLife 100 Map
May 24, 2016
The new CropLife 100 map shows the locations of each of the headquarters of the 2015 CropLife 100 retailers. The interactive Read More
Southern States Cooperative
Corn Field
Industry NewsTiger-Sul Names Veteran Account Manager To Lead Central…
May 23, 2016
With the continuing growth of the sulphur bentonite and precision crop nutrient industry, global agriculture firm H.J. Baker has announced that Read More
Bayer sign
Industry NewsReuters: Bayer Defies Critics With $62 Billion Monsanto…
May 23, 2016
German drugs and crop chemicals group Bayer has offered to buy U.S. seeds company Monsanto for $62 billion in cash, Read More
Eric SfiligojPity The Monsanto Haters
May 23, 2016
An old saying goes thus: “Be careful what you wish for. You just might get it.” Given current events, there Read More
Industry NewsCompass Minerals Hires Industry Veteran To Lead Plant N…
May 19, 2016
Compass Minerals has hired plant nutrition industry veteran Vatren Jurin to steer the company’s portfolio expansion into specialty liquid micronutrient Read More
ASMARK Retailers LIVE! Tour 2016 Group shot The Andersons
CropLife 100The Andersons Rejects Unsolicited Proposal From HC2
May 19, 2016
The Andersons, Inc. has announced that its Board of Directors has rejected two non-binding, highly conditional, unsolicited proposals from HC2 Read More
glyphosate
Crop InputsWHO: Glyphosate ‘Unlikely’ To Cause Cancer
May 16, 2016
Via Reuters.com reporter Kate Kelland: The weed-killing pesticide glyphosate, made by Monsanto and widely used in agriculture and by gardeners, Read More
dicamba, Roundup Ready 2 Xtend
Crop InputsASA: No Dicamba On Roundup Ready 2 Xtend In 2016
May 16, 2016
While Roundup Ready 2 Xtend (RR2X) are tolerant to dicamba and glyphosate herbicides, no dicamba herbicides will be approved for Read More
CPP, glyphosate, dicamba, atrazine,
Crop InputsReport: Congress Pressing EPA On Glyphosate Review Hand…
May 16, 2016
Via Reuters.com reporter P.J. Huffstutter: U.S. lawmakers have asked EPA to explain why it published – and then withdrew – Read More