That doesn't sound like a fungus if the area isn't soft.
Those random spots don't happen to all randomly face south, do they?
I'm wondering about sunburn.

Steve


Al Dykes wrote:
I've got lots of large hard green tomatoes. A few of them have a dark
brown, nearly black. discoloration that covers part of the fruit. The
locaton seems random. The fruit isn't softened or in any way bloated.

We've had about 72 hours of rain or tropical, dripping, humidity here
and I wonder if it's related.

I look thru the gardening web sites doesn't find a picture
of anything like this.

Any ideas ?