Image of soybean cyst nematode females on soybean roots.

In partnership with the Illinois Soybean Association, we are offering free soybean cyst nematode testing for Illinois growers September 1, 2025-August 30, 2026.

Soybean cyst nematode (SCN) is considered the most damaging pathogen of soybean in the U.S. and is found throughout Illinois. Recent years have seen an increase in SCN populations able to overcome the most commonly used form of plant resistance. However, the only way to know if a field has an issue, is by testing. More information about SCN can be found at the SCN Coalition and find Illinois-specific updates on Field Advisor.

To participate, please contact freeSCNtesting@illinois.edu for a free testing kit or download our SCN submission form. The form also provides important information on best sampling strategies. Results from the assay typically take 2-3 weeks but can vary depending on number of submissions.

This project is funded by the Illinois Soybean Checkoff Program.

Illinois Soybean Association logo
Free SCN testing
1201 W. Gregory Drive
Edward R. Madigan Laboratory Room 288
Urbana, IL 61801
Email: freeSCNtesting@illinois.edu