Grape erineum mite

Insect

Grape erineum mite

Colomerus vitis (Pagenstecher)

Eriophyidae: Acari

Photos

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

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

This very small mite cannot be seen without magnification. It overwinters under the bark of 1-year-old canes.

  • Crops Affected: grapes

    Damage

    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.

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