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
FungicidesSudden Death Syndrome, Brown Stem Rot Reported In Indiana Soybeans
September 3, 2014
Farmers and retailers should be watching for symptoms of these two diseases over the next few weeks as they are best managed through preventative methods. Read More
FungicidesResearchers Target Soybean Disease With Genetic Resistance Study
August 6, 2014
University of Illinois researchers will share new information on controlling sudden death syndrome through genetic resistance at this year's Agronomy Day. Read More
Soybean field
FungicidesValent Launches New Seed Protection Fungicide For Soybeans
July 16, 2014
The INTEGO SUITE System contains the first new, novel seed protection fungicide chemistry registered in 30 years by the EPA for protection against Pythium and Phytophthora. Read More
FungicidesNew Players May Make Pest Headlines In Corn, Soybean
April 1, 2014
The usual insects and diseases took a bit of a break in 2013, but other culprits surfaced — and could return. 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
HerbicidesNew EPA Glyphosate Restrictions Leaked To Reuters
April 1, 2015
U.S. regulators will put new restrictions on the world’s most widely used herbicide to help address the rapid expansion of Read More
FMC 3Rive 3D
Seed/BiotechFMC’s 3RIVE 3D Turns Heads
April 1, 2015
As winter trade shows tend to go, Commodity Classic tends to be a pretty big deal. You’ve got all the Read More
Nachurs Alpine Solutions, Liquid fertilizer, micronutrients, facility
MicronutrientsYara Launching YaraVita Procote Liquid Micronutrients
March 31, 2015
Yara North America, Inc. broadens its fertilizer coating offerings with the introduction of YaraVita Procote, oil-based micronutrient liquid suspensions that Read More
Industry NewsINCOTEC Board Member To Retire
March 31, 2015
JanWillem Breukink has decided to retire from his position on INCOTEC’s Board of Directors, effective April 1, 2015. This was Read More
MicronutrientsAgrium Deals Michigan Micronutrient Facility To Cameron…
March 31, 2015
Cameron Chemicals, Inc. has announced today that it has entered into a definitive agreement with Agrium Inc. to purchase the Read More
Industry NewsH.J. Baker Creates, Fills New Pacific Northwest Sales P…
March 30, 2015
H.J. Baker announced today that Gary Bingham has joined the company’s Crop Performance Division to further deepen its sales portfolio Read More
Algal blooms
StewardshipStudy: Algae From Clogged Waterways Could Be Used As Bi…
March 30, 2015
Water-borne algal blooms from farm fertilizer runoff can destroy aquatic life and clog rivers and lakes, but scientists are reporting Read More
Young corn plants
Stewardship4R Nutrient Stewardship Summit Coming To DC
March 30, 2015
The annual 4R Nutrient Stewardship Summit will be held on May 12 in Washington DC. The summit will include a full Read More
FungicidesSyngenta Suing Willowood Over Azoxystrobin Fungicide
March 27, 2015
Syngenta announced today that it has sued agrochemical maker Willowood, LLC., for patent and copyright infringement, as well as unfair Read More
ManagementRetail Week: The Future Of Mycogen Seeds; The 4Rs At Na…
March 27, 2015
Editors Eric Sfiligoj and Matt Hopkins discuss recent trips, including a look at the future of Mycogen Seeds at Dow Read More
Eric SfiligojMonsanto Hears The WHO
March 27, 2015
Another challenge to the safety of glyphosate, and the responses from supporters and opponents, calls to mind a classic Dr. Seuss story. Read More
Industry NewsMonty’s Plant Food Expands Sales Team
March 27, 2015
Monty’s Plant Food Company, a leader in natural soil enhancement and  plant fertility products, has hired Andrew Bullock as a Read More
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