BLS normally appears in my garden in cool to moderate weather with high humidity. If your plants survive into hotter (above 85 degrees F) and drier weather, they can remain productive. Since the pathogen is inside the plant, it can't be eliminated, only controlled, Keep the area around your plants clean of debris and don't transmit the pathogen on your hands and tools. It isn't a good idea to save seed from a diseased plant since the pathogen is probably on the seed as well. Seed can be treated to remove the pathogen. The same disease can infect other garden plants such as peppers.
The disease usually appears as small brown spots with dark margins on the leaves. As the spots increase in size, they merge into yellowish splotches involving the entire leaf. The spots can also appear on the fruit.
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