Gymnosporangium clavipes

Orange "Dust" from Callery Pears

Homeowners in southwest Ohio were surprised yesterday to awake to find sidewalks, cars, and streets beneath Callery pears (Pyrus calleryana) covered in a fine sprinkling of orange dust. The unusual event spawned rampant speculation on social media and captured the attention of the local news media.
Published on
Authors
Joe Boggs
Jim Chatfield