Starting to see Blossom End Rot on samples of tomatoes brought in by customers. We even have it on some of our tomatoes. It also occurs on squash, and peppers. Usually the "blossom end" of the fruit develops a black spot that eventually destroys the fruit. It's very common, and fortunately an easy cure. The number one reason for it is a "calcium deficiency". Calcium is an important nutrient, that is sometimes lacking in our soil, or in the soilless mixes we use. We use a product called, Foli-Cal, which when mixed with water and applied will quickly remedy the situation. The fruit that is stricken won't get better, but new fruit will be OK! Don't delay, feed with Foli-cal today!