Distribution of Soybean Cyst Nematode in Nebraska

  • T. O. Powers
  • L. J. Sandall
  • D. S. Wysong


A survey of 552 soybean fields in 20 counties in Nebraska in 1986-88 revealed 35 fields infested with the soybean cyst nematode (SCN), Heterodera glycines. Identification was confirmed with a greenhouse bioassay, using 'Lee 74' soybean, and by the application of a DNA hybridization probe derived from SCN mitochondrial DNA. Most of the SCN-infested fields were located on the Missouri River floodplain and in the southeastern corner of the state. Key words: Glycines max, Heterodera glycines, Nebraska, soybean, soybean cyst nematode, survey.