Blossom end webbing on blueberries?
I've found a number of blueberries with their blossom ends neatly stuffed with white cottony webbing.
Google search of images didn't come up with this one.
I'm imagining either spider or caterpillar of some kind?
Any guesses? Is this common? It is less than 1/100 berries but would like it to be 0. Thanks.