I created several raised beds 8 years ago and had fantastic luck the first 4 years. Each year thereafter, I've had more and more problems with viruses. Last year's harvest was terribly affected. I do use anti fungal sprays. The garden is drip irrigation. Last year I used a barrier between the soil and the above ground part of the plants to avoid having soil borne viruses impacting the plants. I'm to the point now that I'm thinking of just replacing all the soil... however it seems to me I'll still have viruses. I do not rotate crops, which may be a problem as well. I really like the crops where I put them so I'd prefer not to rotate them if possible.
Anyone else have these problems or suggestions? Digging the whole garden up to replace the soil will be a monumental task.
Thank you!