Late season soybean field with symptoms of BSR. Photocredit: Craig Grau, University of Wisconsin

Brown Stem Rot - Agronomic Impact

Yield losses to BSR of 10-30% are common. BSR may reduce both seed number and seed size. Severely diseased plants may wilt, defoliate prematurely and lodge more readily than non-infected plants.

Yield loss is greatest in cultivars with a longer relative maturity and if foliar symptoms as well as stem symptoms are present. 

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