Flyspeck is characterized by small, black specks on the berries. The specks are caused by a fungus that grows superficially on the fruit surface. The fungus also infects many cultivated and wild hosts, which serve as a reservoir of inoculum. High relative humidity is conducive to development of this disease.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the AgBioResearch, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.