I picked one of my butternut squash because they were getting too big and I thought I'd let it ripen off the vine. Never had a problem doing this before. It looked fine and healthy when I picked it a couple of days ago. Then it developed these spots which are quickly spreading.
Assume this is black rot? The fruit on the vines look healthy. So is it best to leave those to ripen on the vine, because I assume they won't store long after picking? One google result suggested I pull everything up and burn, which I obviously don't want to do.
Is the rot more likely to set in after picking?
Note: Like most places, it's been mostly warm and wet here with some cold nights recently.