Podcast Helps Soybean Farmers Deal With White Mold

A group of university researchers, in conjunction with the North Central Soybean Research Program (NCSRP), have created a podcast to help farmers deal with white mold, a disease of soybeans.

“Management of White Mold in Soybean” is a seven-part podcast series available for free download on iTunes. It covers topics such as how to identify white mold, estimating yield loss, impact of irrigation on disease development, foliar fungicides, understanding risk of white mold in a growing season, biological control and guidelines for an overall management plan.

The podcasts are especially relevant as most soybeans are now planted and emerging, and farmers need to be aware of white mold, said Kiersten Wise, Purdue Extension plant pathologist and podcast co-creator.

White mold, also called Sclerotinia stem rot, is caused by the fungus Sclerotinia sclerotiorum and can affect plant growth and ultimately yield and profits.

“White mold isn’t a problem every year in Indiana, but when it is present, it can cause significant yield loss,” Wise said. “Growers who have had white mold problems in the past should be prepared for the disease, since the fungus that causes white mold survives in the soil for a very long time.”

This disease thrives in cool, wet conditions and under a dense foliar canopy. Early planting, narrow row width, high plant populations and high soil fertility all can contribute to more dense canopies, and increase the risk of disease development.

“The fungus that causes white mold infects soybeans as they’re starting to flower in growth stage R1,” she said. “If cool, wet weather persists during flowering, a fungicide application might be necessary to suppress the disease.”

Wise said there are several fungicides that are available for use on white mold, but not all commonly marketed fungicides are effective against the disease. Growers should contact Extension personnel to determine which fungicides are recommended for use on white mold.

Management of white mold can be tricky because once farmers find evidence of the disease in the field, it might be too late to manage it that year. But identifying the disease can help future crops.

Wise said white mold is an easy plant disease to identify.

“If you suspect that you have white mold in your soybeans, walk into a field and pull back the canopy and look at the lower stems,” she said. “If it looks like little bits of cotton are stuck to the lower stems, that’s a good indication that you have white mold.”

Recordkeeping and knowledge of field history are important parts of controlling white mold.

“The next time that field goes into soybeans, you want to choose a variety that is less susceptible to white mold and make sure that you’re planting at recommended seeding rates,” Wise said. “The higher the seed population, the more conducive the environment will be for white mold to develop.”

Incidences of white mold vary from year to year, but Wise said Indiana had major occurrences in 2009 and 2011.

The North Central Soybean Research Program is a farmer-led organization funded by checkoff dollars. It includes researchers in 12 states: Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota and Wisconsin.

Leave a Reply

Fungicides Stories

Syngenta Sign
FungicidesSyngenta’s Newest Fungicide Receives EPA Approval
September 1, 2015
Syngenta announced today that its newest succinate dehydrogenase inhibitor (SDHI) fungicide – Solatenol – has received registration from EPA and Read More
FungicidesBASF Registers New Seed Treatment Fungicide
August 6, 2015
Obvius fungicide seed treatment from BASF received full EPA registration for use on pulse, podded vegetables and canola. State registrations are Read More
FungicidesReport: Sudden Death Syndrome Symptoms Appearing In Soybeans
July 30, 2015
Last week, symptoms of sudden death syndrome (SDS) began to appear in April 15-planted soybeans at the University of Illinois’s Read More
FungicidesHelena To Distribute Unique Summit Agro Fungicide
June 29, 2015
RANMAN 400 SC fungicide, the only fungicide with a FRAC group 21 designation, is now part of the innovative Summit Read More
Top 100 Articles
Crop InputsLand ‘O Lakes, United Suppliers Finalize Merger
August 24, 2015
According to a press release on August 24, owners of United Suppliers, Inc. and members of Land O’Lakes, Inc. “have Read More
West Central Cooperative, Jefferson, IA
CropLife 100Iowa Cooperatives To Explore Unification
August 19, 2015
The boards of directors at two of Iowa’s leading farmer-owned cooperatives yesterday signed a letter of intent to study the Read More
CropLife 100Southern States Coop Hosting Drone Flight This Friday
August 3, 2015
Southern States Cooperative — No. 9 on the CropLife 100 — is hosting an FAA-approved drone demonstration at Grandview Farms Read More
CropLife 100Aligned Ag Distributors Adds Four New Owners
July 30, 2015
Aligned Ag Distributors LLC has announced the addition of four new customer/owners to Franklin Holding Co. LLC. They are: The Read More
CropLife 100Pinnacle Purchases California-Based Specialty Crops Retailer
July 20, 2015
Pinnacle Agriculture Holdings has successfully acquired California-based NH3 Service Co.  Operating as part of Pinnacle’s Performance Agriculture brand, the new locations Read More
Asmus Farm Supply liquid fertilizer facility features 20,000 square feet
CropLife 100Slideshow: Asmus Farm Supply Shows Off Its New Liquid Fertilizer Facility
July 15, 2015
Asmus Farm Supply, Rake, IA, recently added a new liquid fertilizer facility to its company operations. The new liquid fertilizer Read More
Latest News
Crop InputsBayer CropScience: A Decade Of Innovation
September 3, 2015
BLAMS! It’s not a sound effect from the pages of a Superhero comic book. Instead this nifty acronym is used Read More
ManagementReviewing MAGIE 2015
September 2, 2015
CropLife Editor Eric Sfiligoj talks what he saw at the recent Midwest AG Industries Exposition (MAGIE) show. Read More
Melissa Olds Dow AgroSciences
Crop InputsDow AgroSciences: Highlighting The Past, Present & …
September 2, 2015
In general, media events held by large agricultural suppliers tend to focus primarily on what plans the company has in Read More
Mobile tablet
OpinionTaking Data Head On
September 2, 2015
As you read this column, I’m hoping that if you picked up the phone and gave me a call, you’d Read More
Young soybean field
Industry NewsArysta LifeScience Announces New Business Unit Head For…
September 1, 2015
Arysta LifeScience North America announces the addition of Rico Christensen, Business Unit Head, North America. Christensen will have responsibility for Read More
Wilbur Ellis Pink Soybean Seed Treatment
Crop InputsWilbur-Ellis Goes Pink With Soybean Seed Treatments For…
September 1, 2015
This past year, proceeds of pink-dyed soybeans treated and sold to Wilbur-Ellis seed customers in Chester, SD, went to two Read More
SprayersNORAC Active Wing Roll Slated For More Sprayers
September 1, 2015
NORAC Systems, a member of the Topcon Positioning Group, announces the release of Active Wing Roll for RoGator, Apache, New Read More
Syngenta Sign
FungicidesSyngenta’s Newest Fungicide Receives EPA Approval
September 1, 2015
Syngenta announced today that its newest succinate dehydrogenase inhibitor (SDHI) fungicide – Solatenol – has received registration from EPA and Read More
Flooded corn in Indiana
Crop InputsDelaying The Fertilizer Decision
September 1, 2015
Comments gathered from several retailers recently evidenced a classic good-news-bad-news scenario. Good news is prices and supplies of nitrogen, phosphate, Read More
StewardshipBee Buffer Strip Initiative Seeks 100 Ohio Farmers
August 31, 2015
The U.S. Bee Buffer Project, an initiative of the Pollinator Partnership (P2), Burt’s Bees and The Burt’s Bees Greater Good Read More
2015 ShowStopper Award, MAGIE
EquipmentA ShowStopper From Case IH: The Patriot 2250
August 31, 2015
For nine years now, visitors to the yearly Midwest AG Industries Exposition (MAGIE) show have been tasked with not only Read More
Crop InputsMonsanto, FMC Expand Roundup Ready PLUS Platform
August 31, 2015
FMC Corp. and Monsanto Co. announced today an expanded agreement to continue their participation in the Roundup Ready PLUS Crop Read More
Deere Nutrient Applicator
Eric SfiligojThe Good & Bad News From MAGIE
August 31, 2015
As I write this column, I’ve just returned from the annual Midwest AG Industries (MAGIE) trade show in Bloomington, IL. Read More
CPS Morenci receiving its 4R certification
StewardshipCPS Morenci Becomes First Michigan Facility Certified I…
August 31, 2015
The 4R Nutrient Stewardship Certification Program has announced that Crop Production Services, Inc.’s facility located in Morenci, MI, has been Read More
EquipmentDeere Announces Soucy Track Distribution Alliance
August 28, 2015
John Deere announces an alliance with Soucy Track to sell and distribute products through the John Deere dealer channel. “This Read More
FertilizerFall-Applied Phosphorus: A Rooted Investment
August 28, 2015
As commodity prices decrease and input prices continue to rise, farmers are seeking more efficient strategies for meeting a high Read More
Monsanto Sign
Crop InputsWhat’s Next For Monsanto, Syngenta?
August 28, 2015
After dropping its $47 billion bid to take over Swiss agribusiness firm Syngenta, Monsanto may be turning its focus to Read More
Golden Harvest Corn stalks
Crop InputsMonsanto: Syngenta Not The Only Horse In Crop Protectio…
August 28, 2015
Monsanto Co, having ditched an audacious $46 billion (£30 billion) offer for Syngenta AG, may downshift to a humbler strategy Read More