Corn Silage Testing:  Anthracnose and Top die back are very prevalent in corn as we race to maturity. Here is an Iowa State site that talks about it with a lot of pictures. http://www.ent.iastate.edu/imagegal/plantpath/corn/anthracnose/anthracdiebakmv.html
Here is a Purdue website on many of the leaf diseases we are seeing this year with great pictures. http://www.btny.purdue.edu/extension/pathology/cropdiseases/corn/corn1.html
Corn is still on pace to black layer between Labor Day and the 15th for many, should we combine corn or soybeans first?