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Aceria cerreus

Mite Aceria cerreus

Description

Blister-like bumps on the upper leaf surface of irregular shape and size. Corresponding underside of bulges is covered by an erineum. Hairs can have different shape. Creamy-white to red when young, later becoming darker, even brown. Its impact on health status of the tree is only negligible, they can reduce the aesthetic value of the tree.

Symptom

Blister-like bumps on the upper leaf surface of irregular shape and size. Corresponding underside of bulges is covered by an erineum.

Tree Species: Oak

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Mites

Invasive Species: No

Present in EU: Yes