What causes dry rot on the blossom end of tomatoes?
What Causes Dry Rot on the Blossom End of Tomatoes
Certified GKH Gardening Expert
Yes, blossom end rot is often caused ba a lack of calicium in addition to watering issues. This article will help you with that:
I find uneven watering & soild insuffiecient in calcium seem to be the cause of blossom end rot in tomatoes as well as squash. Remove affects fruit, add calcium rich compost [egg shells] & do not over water.