[JRinPA]

I don't think it hurts too much up here in PA. We just seem to get early blight and septoria for the most part, lots of it, and from what I have experienced the last few years, planting on black mulch doesn't help that, rotating doesn't help that, and trimming bottom leaves doesn't help that. It just comes from the air, as soon as it gets hot and humid or really wet, and it won't matter if you rotate. I have put tomatoes into fresh spots and pre-pruned the last few years and the leaf spots are the same.

The things I read about in warmer climates, nematodes and viruses, that would worry me. Bad things that overwinter in the ground because it doesn't get cold enough.


EDIT best producing tomato plants I've had are CRW cages with unpruned tomatoes trench planted right over double dug rows filled with fish and lime during the previous fall. Tremendous output done that way. And that garden always had tomatoes in it every year for as long as I can remember.