The University of MN has done farmers a big favor by doing a rigorous study on soybean seed treatments: A 2014 multi-site field study on the effects of Clariva seed treatment on soybean yield and Soybean Cyst Nematode reproduction. “Significant yield responses to either seed treatment, above the untreated controls, were not common in 2014.” according to the study. Another item to take note of “Seed treatments did not change SCN reproduction compared to untreated seed. ”
In the study above, there is also a link to the detailed report.
Doing a quick search for Clariva seed treatment I came up with this page from Syngenta touting the great benefits for Clariva to farmers.
Every farmers is constantly being up sold by the seed companies with seed treatments for soybeans. It is a huge market and extremely profitable to the companies selling the products. There seems to be little documented evidence of the benefits to farmers when looking at unbiased university studies.