Oddly enough, I had more of a problem with BER in the earthboxes, which are supposed to provide an optimal level of moisture if you keep the reservoir full. I'm wondering if it has more to do with temperature fluctuations where I have them. Might be getting a bit too cold in the afternoons. I don't have the fertilizer box any more, so I can't check the nitrogen level in the one I was using. Anyway, I thought the information in that article was a bit more comprehensive that others I've seen, so I thought I'd share it. Does anyone have recommendations for slicing varieties that are less susceptible to BER?