I just ignored mine and although blight started on them, the weather didn't keep it going and they made it through the worst conditions. Then I had tomatoes into October.Thinking of starting tomatoes indoors any day now.
Blight was the worst ever last season.
This spring, the plan is try hay bail planting rather than in-ground. Going to pre-treat the growing area with copper fungicide, prune (which I don't usually bother with), and spray with baking soda & soapy water.