How Soybean Sudden Death Syndrome Looks at the Root

August 24, 2010 at 12:07 pm 1 comment

Most agronomists and farmers are good at identifying soybean Sudden Death Syndrome (SDS) through leaf symptoms (below image courtesy of Glen Arnold, OSU Extension Putnam County):

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However, there is another diagnostic feature that can be used as well.  OSU’s Anne Dorrance will also use blue spores of the SDS fungus on a soybean tap root as a diagnostic feature.  This avoids incorrect diagnosis, that is, diagnosing brown stem rot or interveinal chlorosis from nutrient deficiency as SDS.

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Entry filed under: crop disease, soybeans. Tags: .

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