Sudden Death Syndrome 

Sudden Death Syndrome caused quite a few issues this year for farmers.  So, what can you do this winter to decrease chances of Sudden Death Syndrome in your soybean fields next year? 

Sudden Death Syndrome also known as SDS is a soilborne fungus.  The fungus survives throughout the winter as spores in crop residue.  There are 2 phases of damage this fungus can cause to soybeans 1. Root disease 2. Leaf scorch.

Since, SDS can survive through the winter you can imagine what type of environment it likes, cold and wet. Symptoms can be found on the leaves between late July and early August.  Scouting soybean fields you should keep an eye out from scattered yellow spots between the veins that can expand to brown lesions with chlorotic rot. The leaves will also become cupped or curled.  If you think you have SDS pull a plant and cut the stem to evaluate the tissue.  The outer tissue of the effective plant will be brown or rotted, but the pith will be white. 

How can we manage our fields and plan for next year to try to reduce the chance of SDS?
  1. Hybrid Selection: Selecting high yielding and SDS resistant hybrids. 
  2. Compaction : Minimizing compaction will help decrease levels of SDS.
  3. Field History: Evaluate crop nutrient history and SDS history. Fields with a history of SDS consider planting those later
The Yield Quest program Centra Sota offers provides the tools to evaluate your field history to help plan for next crop season.  Work with your Centra Sota Crop Advisor this winter to create a plan to tackle SDS next year. 
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