binshtok
Aug 14, 2009, 01:10 PM
What may cause dark spots on the bottom of the tomatoe that is still on the vine?
Scleros
Aug 14, 2009, 03:48 PM
Blossom end rot. See https://www.askmehelpdesk.com/gardening-plants/tomato-rotting-375506.html and also Ripe Fruit Disorders - Tomato Problem Solver (http://aggie-horticulture.tamu.edu/publications/tomatoproblemsolver/ripe/).