I was wondering if anyone has any ideas about what the "blossom end rot" on the end of this zuke is.
The rot always starts at the blossom end, and proceeds quickly. The zuke in the pic was fine a day or so ago. It also hits larger more mature zukes. The rot will eventually take over the entire fruit if it is not removed. These are being grown in a greenhouse (our zucchini supply until the outside plants start producing).
I thought it might be related to a bug/slug eating its way in from the blossom scar, but I have not noticed any critters in rotted parts.
Thoughts as to what it might be, and cures?