Micah Rood's Apples
Apples with a spot of red (like blood) in the heart. Micah Rood was a prosperous farmer at Franklin. In 1693 a pedlar with jewellery called at his house, and next day was found murdered under an apple-tree in Rood's orchard. The crime was never brought home to the farmer, but next autumn all the apples of the fatal tree bore inside a red blood-spot, called “Micah Rood's Curse,” and the farmer died soon afterwards.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894