Strega

A Strega is a practitioner of Italian folk magic, mentioned in Blood Rites  (Ch 4)

Description
They specialize in: divinations, love potions, fertility blessings, and protections. They can als to a pretty vicious set of curse wiht a technique call the Malocchio. The Evil Eye. (Ch 4, Blood Rites)

History in Series
Someone is targeting the women around Arturo Genosa using an Entropy Curse. Harry sometimes also calls it aMalocchio. (Ch 4, Blood Rites)