Loren, it may not be the color or Case's mistake. In the late 80's early 90's when two part enamel, acrylic enamels and corresponding primer technology was evolving this happened on a lot of wheeled contraptions. The big 3 had major paint problems and wound up repainting thousands of original owner cars due to problems just like this. Turned out to be a paint compatibility with the primer. Today's paints don't seem to have this problem.
I had an '85 Chrysler New Yorker and my son's first car (pick-up) a '90 F150 had this same problem with factory paint. I have to think the Ag companies used/use similar paints and primers. Only thing that fixes it is to take it to bare metal and start over; something many of us, even with paint like Jeremy's, want to face. If its not a show tractor what is there will keep it from rusting at least even though we would all like paint to hold up better. I have come to believe that Case made a lot of bad decisions over the years and even though I don't like to see an IH red Case I think we have to blame this one on paint technology.