Ames, IA (October 25, 2024) - The soybean cyst nematode (SCN) is estimated to be present in at least 70 percent of Iowa fields. Growing SCN-resistant soybean varieties is critical to maintaining profitable soybean production in these fields.
Each year, ISU compiles information on the SCN-resistant soybean varieties available to grow in Iowa. The updated list is available as ISU Extension publication CROP1649. Collection and publication of this information is supported by soybean checkoff funds provided by the Iowa Soybean Association.
Over 900 resistant varieties available, more with Peking resistance than ever
The publication contains information on 920 SCN-resistant soybean varieties among maturity groups 0, 1, 2, and 3. This is 54 more varieties than last year and a near-record high number. The varieties are from 33 brands offered by 25 companies.
For more information, see the Iowa State University Extension and Outreach Integrated Crop Management article.