Grape erineum mite












Download Adobe Acrobat Reader to view pdf files.

Grape erineum mite
Rufus Isaacs, MSU Entomology

This very small mite cannot be seen without magnification. It overwinters under the bark of 1-year-old canes. In spring, the mites move to leaves, causing raised bumps, called an “erineum,” on the upper surface. This has densely curled leaf hairs on the lower surface, in which the mites feed and reproduce.


White patches on the undersurface of the leaf house the erineum mite.

Additional information

Recommendations from the Michigan Fruit Management Guide

Site map About us Copyright/Linking

Funding for this web site provided by Project GREEEN, American Farmland Trust, EPA Region 5's Strategic Agricultural Initiative program, The National Foundation for IPM Education, the Center for Agricultural Partnerships and the MSU Integrated Pest Management Program in collaboration with MSU Extension and the Michigan Agricultural Experiment Station.

Partial support from NC-IPM Center
Updated 12/11/07 Contact: J.N. Landis.