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Aceria tenella

Mite Aceria tenella

Description

The species causes tiny swellings on the lower side of the leaf at the fork of side and main veinlets which then become swollen and hairy. On the upper side of the leaf, above the damaged place appears a small bulges. The shape of damage is always quite regular and it occurs on the whole leaf.

Symptom

Swellings situated on lateral veins.

Tree Species: Hornbeam

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Mites

Invasive Species: No

Present in EU: Yes