Early Blight Tomato Problem
I have had my garden in the same place for 14 years. The first 10 worked great, however the last 3 (with one off year to treat the soil) have resulted in early blight that has destroyed my tomatoes. I can't believe this is a coincidence that it keeps coming back so I elected to move the garden for next year. Was this a mistake? Why on earth would it keep happening when I have done nothing different than the previous 10 seasons if it not a soil contamination issue?
http://extension.umd.edu/growit/vegetables/diseases-vegetables Count yourself lucky that you grew tomatoes in Maryland for 10 consecutive years with no signs of early blight infection!
This fungal pathogen is ubiquitous in Maryland. For more information on identifying and about managing early blight:
Moving your garden will not prevent the problem because fungal spores can blow across great distances.
You can send us photos during the 2017 growing season of symptoms you observe on your tomatoes.