Black moldy seeds
This year I've had a large crop of Romas and they are large tomatoes (4--5 fruits weigh a pound). However, I'm experiencing a problem I haven't had previously: although the fruits look perfect outside, in many cases the seed cluster inside is black and appears to be moldy. It was worse early on when we were getting good amounts of rain, but is not so prevalent now. I'm in hot, humid South Carolina. Has anyone else experienced this problem and knows what causes it.