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Relationship Between Fusarium virguliforme and Heterodera glycines in Commercial Soybean Fields in Wisconsin

D. Marburger, S. Conley, P. Esker, A. MacGuidwin, and D. Smith

January 2014


Fusarium virguliforme, the causal agent of sudden death syndrome, and Heterodera glycines, soybean cyst nematode (SCN), are economically important pathogens of soybean. In 2011 and 2012, samples submitted to a SCN detection program were assayed for SCN using a sieving/centrifugation method and for F. virguliforme using a real-time quantitative polymerase chain reaction (RT-qPCR) protocol. The objectives of this study were to: (i) determine the incidence of H. glycines and F. virguliforme in commercial soybean fields in Wisconsin; and to (ii) compare the distribution and population densities of H. glycines and F. virguliforme to determine if establishment of these pathogens is interrelated.


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