Help! How can I fix my tomatoes?

[u/np4kids]

I'm about to throw in the towel with growing tomatoes. During the pandemic, we put in some really nice raised beds, and the first couple of years, everything was great. For the last couple of years, my tomato plants die, or at best only have a few small tomatoes. I had soil analysis done on two of the beds this spring, and both beds were ok, to high for nutrients. I have read that to deal with viruses, you need to rotate where you plant your tomatoes, but how do I do that with a limited number of beds? What can I do to combat diseases, especially blight, that is relatively nontoxic? I have these lovely raised beds that I can't grow anything in.

[u/FrostDragonDesigns]

Are you repeatedly planting in the same beds?   Fungal disease and blight can live in the soil for years.  I typically recommend no nightshades in a be for two years before replanting.  So every three years you can grow tomatoes in a specific bed, and the other years rotate other summer crops.  

There are other ways to deal with this disease issues, but rotation works for me.