Photos Of Frozen 'Ghost Apples' Are Going Viral. What Are They?

Later, it was just warm enough to allow the encased apples to take on some of that water and turn into a mush. When I pruned a tree it would be shaken in the process, and the mush would slip out of the bottom of the 'ghost apple', he explained. Most apples just fell off, ice and all. But quite a few would leave a cool 'ghost apple' behind. As these apples happen to be of the Jonagold variety, Sietsema has come to calling them Jonaghosts.