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Angie Peltier

Angie Peltier
Former Extension Educator, Commercial Agriculture

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Hill and Furrow

Current topics about crop production in Western Illinois, including field crops research at the NWIARDC in Monmouth.

Online Soybean Cyst Nematode Management Resources

As you make your soybean variety selections for 2013, it is important to keep in mind the little animal that often stealthily threatens yield, the soybean cyst nematode.
The most recent US SCN yield loss estimates are from 2006 through 2009. In these four years, when comparing SCN-caused losses to those attributed to other pathogens, SCN was far and away responsible for the most yield loss. SCN caused between 25 and 38 percent of all disease-related yield losses and yield loss estimates ranged between 94 and 172 million bushels per year (Table).

Table. SCN-associated soybean yield losses in 2006 through 2009*


Estimates yield losses (in bushels)**

Percent of total estimated pathogen-caused yield loss













* From: Koenning and Wrather, 2010.
**Estimated yield losses due to SCN in 28 US States.

A new brochure, "The Invisible Threat", will be available in print at some upcoming University of Illinois Extension and Illinois Soybean Association events and is also available online. This brochure summarizes the importance of testing fields for SCN population densities and then determining the predominant SCN type. Results of a type test can help to determine which source of SCN resistance would be the best choice for your particular field or farm.

The University of Illinois VIPS website summarizes results of Illinois soybean trials (including the SCN-resistance ratings) and can let you compare a particular variety among trial locations or all varieties at a particular location through their Customized variety search feature.

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