Problem with Red Brandywine

[Mark0820]

I have planted Red Brandywine for the past three years, and every year it has become infected with disease and the plants have all died before the end of the tomato season (a couple plants died before they had any ripe tomatoes). My other varieties all seem to make it to the end of the growing season. Is this issue related to the growing conditions in my area, the seeds I purchased or something else? I have used the same seed all three years.