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29
Aug
2014
Soybean sudden death syndrome may indicate nematode problem
Author: Terry Kirkpatrick, Professor - Plant Pathology

The Sudden Death Syndrome (SDS) in your soybean field may be trying to tell you something!  The increased incidence in SDS statewide this year is due to a lot of factors, including the cool, wet summer we have had.  However, keep in mind that although SDS is caused by the soil borne fungal pathogen Fusarium virguliforme, disease incidence and severity can be linked to the presence of nematodes.  The soybean cyst nematode is usually the nematode species that is associated with more severe SDS, but our observations in Arkansas indicate that root-knot nematodes may also enhance SDS severity.   So, if you are seeing SDS in a field, this may be an indication of an underlying nematode problem.  This fall would be an excellent time to find out!  In addition to fall being the optimum time to sample for nematodes, THIS FALL is especially attractive because the Arkansas Soybean Promotion Board and the Arkansas Nematode Diagnostic Laboratory are partnering to survey soybean acreage in Arkansas by providing free nematode tests for Arkansas soybean growers – or their consultants and county agents.  Contact your local county agent for details and get out there and sample!SDSsoybean.jpg


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