Diseases attacking agricultural crops cause millions of bushels of yield loss for farmers across the United States each year.  Farmers battle these diseases in several ways including the use of resistant varieties and hybrids, crop rotation, and fungicides.  To complicate things, new diseases arise from time to time.  One example is Tar Spot, which has become a major yield robber in Midwestern corn fields over the past several years.  In this episode, Dr. Randy Myers from Bayer Crop Science explains how companies develop new tools that farmers can use to protect their crops. To learn more about fungicides available to growers of various crops, please visit: http://www.cropscience.bayer.us/products/fungicides.