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Soybean Cyst Nematode

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Soybean cyst nematode
The Soybean Cyst Nematode (Heterodera glycines) a plant parasitic nematode and its egg
Scientific Name: 
Heterodera glycines (ITIS; name is valid but unverified)
Common Name: 
Soybean cyst nematode (SCN)
Native To: 
First identified in Japan in 1915, but it may have been historically present in China. It is also hypothesized that it may be indigenous to the United States (Davis and Tylka 2000)
Date of U.S. Introduction: 
First discovered in North Carolina in 1954 (Davis and Tylka 2000)
Means of Introduction: 
Unknown, may have arrived in imported plant material or soil, or may possibly be indigenous to the U.S. (Davis and Tylka 2000)
Causes stunted growth and reduced yields of soybean crops (Davis and Tylka 2000)

Distribution / Maps / Survey Status

USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.

North Central Soybean Research Program. Soybean Research and Information Initiative.

Scroll and select Distribution to view known distribution of the soybean cyst nematode, Heterodera glycines, in counties in the United States and Canada in selected years from 1957 to 2014.



Google. YouTube; University of Nebraska - Lincoln. CropWatch.

Selected Resources

The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Soybean Cyst Nematode.


European and Mediterranean Plant Protection Organization.

North Dakota State University. Extension Service.
University of Nebraska - Lincoln. Institute of Agriculture and Natural Resources.
Ohio State University. Extension.
Iowa State University.

University of Delaware. Cooperative Extension.

University of Missouri Extension.

North Carolina State University. Extension.

University of Minnesota. Extension.


American Phytopathological Society.

North Central Soybean Research Program. Soybean Research and Information Initiative.