Dark areas on green tomatoes

Asked August 6, 2013, 7:51 PM EDT

We have a food bank garden in Monroeville, PA and have had successful years with tomatoes and other vegetables. But this year there are dark areas appearing on the unripe tomatoes that don't look like early blight or sun scald. There are dark areas on the skin that can be one small spot or sometimes covers 1/3 of the green tomatoes. We have no idea why this is happening or how to treat it. It isn't a soft area and appears usually somewhere near where the stem holds the tomato. But can be on other areas. Since the transplants were donated, we don't know their varieties. The only differences this year is that we got the transplants from a different source and also the compost was bought from a different nursery. Another possible contributing factor is much much more rain this spring and summer. But we were hoping for help from your community.

Allegheny County Pennsylvania

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