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Soybean Sudden Death Syndrome - How Can You Avoid the Risk?

Soybean Sudden Death Syndrome - How Can You Avoid the Risk?

25 April 2014

ANALYSIS - Sudden death syndrome (SDS) is one of the most important diseases of soybean in the Midwest.

First discovered in Arkansas in 1971, SDS has spread throughout most of the North Central Region including Illinois, Indiana, Iowa, Kansas, Kentucky, Minnesota, Mississippi, Missouri, Nebraska, Ohio, and Tennessee. 

SDS is most severe when soybeans are planted early into cool, wet soils and when heavy midsummer rains saturate the soil.

TheCropSite's Sarah Mikesell chats to Jennifer Riggs, Product Development Manager at Bayer CropScience, about the spread of SDS and preventative actions.

Bayer CropScience has an application pending with the EPA for the registration of ILeVO® seed treatment. If approved, ILeVO seed treatment would be the first product to provide protection for soybean seedlings from Fusarium virguliforme, the fungus that causes SDS.

In trials, ILeVO seed treatment protects soybeans from early-season infection and reduce late-season leaf chlorosis and necrosis that leads to leaf, flower and pod abortion, resulting in yield loss. The active ingredient in ILeVO is systemic and moves from the seed into the tissue of both the stem and roots of soybean seedlings.

“The cotyledons and roots act as a sink for ILeVO, enabling the product to stay where it is needed to protect against early-season infection way in advance of SDS visual symptoms appearing in the field,” said Dr. Riggs.

Daren Mueller, assistant professor at Iowa State University said that growers should focus on an integrated approach to SDS management.

“While we do have some levels of resistance to the disease in many of the maturity groups, there are no soybeans that are completely immune to SDS. Having an integrated management approach with the addition of ILeVO would provide a sound set of tools for growers to protect their crop when resistance breaks down. We’ve tested it, and it appears to be a very effective product in preventing damage from SDS,” said Mueller.

Bayer currently anticipates EPA registration for ILeVO seed treatment by the end of 2014. If registered this year, Bayer anticipates ILeVO will be available for the 2015 growing season.

Sarah Mikesell, Senior Editor

Sarah Mikesell, Senior Editor

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