Soybean Cyst Nematode (SCN) is the most destructive pest of soybean in the United States. Yield losses in soybean due to SCN have been estimated at more than $1 billion annually in the U.S. Because the nematode can be present in fields without causing obvious aboveground symptoms, yield losses caused by SCN are often underestimated.

After three years of intensely surveying field soils in 17 counties from Western through Northern NY counties (2014-2016), the nematode was identified for the first time in Cayuga County in 2016. A Cooperative Agricultural Pest Survey (CAPS) in 2019, funded by NYS Dept. of Ag. and Markets, identified seven more positive fields in six additional counties.  The map below outlines survey efforts and results conducted by CALS faculty, staff, and students.  Formal statewide funded SCN testing will continue in 2020 and beyond, supported by the CAPS program and the NY Corn and Soybean Growers Association. 

Field Crops Specialist Josh Putman, is now monitoring soybean fields in SWNY that display uneven drydown patterns or random yellow patches. The best way to confirm SCN is to scout soybean fields with symptoms, dig plants, look for cysts on the roots, and submit a soil sample for testing and confirmation. We are looking to sample 2-3 fields per county within the SWNY region and test for SCN. If you see uneven patterns in your soybean field or suspect an issue, contact Josh Putman to visit your fields. Additional resources about SCN can be accessed at: https://www.thescncoalition.com/resources/tools-to-download.