Answer: Red foliage can indicate a problem with the roots; usually a fungal disease. It doesn't sound like that's what is ailing yours, but I thought I'd share the information anyway. The second most common cause for red leaves is a nutrient deficiency. Fish emulsion is high in nitrogen so I suggest you feed again, this time with a 5-10-10 garden fertilizer. Or, take some of the leaves into the Cooperative Extension office and see if they can give you an informed opinion or even send them away for an analysis.
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