Achillea — Aceria achilleae

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En: Aceria achilleae
Fr: Aceria achilleae
De: Aceria achilleae
08/03/2019 - Bonneval-sur-Arc (73480)

View of the gall from top.

Host-plant: Achillea millefolium

Pierre Duhem - All rights reserved.

Questions and comments are welcome.