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Ash Key Gall Mite

Aceria fraxinivora

Classification

Aceria fraxinivora, also known as the cauliflower gall mite and the ash key gall, causes the growths, known as galls, found on the hanging seeds or "keys" of the ash (Fraxinus) species. Appearance and cause The mite usually attacks the flower clusters soon after they open. The individual gall is no more than 2 cm across but when grouped together can be impressive as they present a sizable irregular deformity formed from the fused and swollen flower stalks (pedicels).

Distribution

(c) Paul Cook, some rights reserved (CC BY), uploaded by Paul Cook · CC-BY
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Countries in the Picchu catalog
Netherlands · 537United Kingdom · 314France · 79Germany · 67Spain · 23Switzerland · 5Belgium · 4Italy · 4Luxembourg · 4