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BrownfieldAgNews reports:

Research shows that glyphosate is not responsible for perpetuating Sudden Death Syndrome (SDS) in soybeans.

A possible connection between glyphosate use and SDS has been a topic of discussion for several years. But Iowa State Extension plant pathologist Daren Mueller says a three-year research study proves that there are other factors much more important to the development of SDS than herbicide selection.

"Out in the field, in real conditions that we see soybeans growing in, glyphosate is probably such a small factor compared to rainfall, moisture at planting, temperatures at planting, resistant varieties, amount of inoculum in the soil," Mueller says.

"There are so many different factors that are probably way more important than the use of any herbicide, I think it's probably not an issue."

Mueller says SDS outbreaks have been relatively low in Iowa the last three years, mostly due to dry summers.

Scientists from five Midwest universities and the Ontario Ministry of Agriculture Food and Rural Affairs participated in the research project.

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