Frequently Asked Questions
A good starting point is the Soybean Cyst Nematode Management Guide published by the SCN Coalition in 1999. There are many excellent SCN-related resources available on the web.
Soil sampling for the soybean cyst nematode (SCN) has increased dramatically in the last couple of years. Several private soil fertility laboratories have begun to offer SCN soil analysis as a service.
(from Dr. Terry Niblack , University of Illinois at Urbana-Champaign & Dr. Pat Donald, University of Missouri)
Here at ISU, we have two management recommendation for SCN-infested fields. The recommendation given is based on the SCN egg population density (egg count) of the sample submitted.
If a grower simply wants to sample a field to check for the presence of SCN, I'd recommend sampling the field after soybean harvest.
Here at ISU, we have two management recommendation for SCN-infested fields. The recommendation given is based on the SCN egg population density (egg count) of the sample submitted.
Soil samples may be submitted to the Iowa State University Plant Disease Clinic at:
ISU Plant Disease Clinic
323 Bessey Hall
Ames, IA 50011
(515) 294-0581
The form for submitting samples is available here.
I do not advocate having race tests done when an SCN infestation is first discovered.