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The infected tree was a young dead ash, which I presume had already been attacked by Chalara as have most of the ash trees in the area. The bark had been almost completely stripped off the tree by great spotted woodpeckers, which I saw extracting the grubs.
I am wondering if this damage is caused by the Hylesinus beetle and how common it is in the area?
Thank you
Malcolm Green
Answer
Hi. Yes, on the pictures is ash bar beetle Hylesinus varius. Its common in most part of Europe. Best regards, Juraj.
Hi, this is a piece of wood that I found on the ground, in a decidous forest (mostly Fagus sylvatica, Castanea sativa) of the Appenine.
Thank you in advance.
Best regards
Antonella
Answer
Dear Antonella. On the pictures is gallery on ash tree. See this species in our atlas + video https://www.forestpests.eu/pest/hylesinus-varius-fraxini . All the best, Juraj
Thank you for your request. This is heavy infestation of an ash tree by Hylesinus varius (= fraxini). More about this pest here: https://www.forestpests.eu/pest/ash-bark-beetle. Wish best regards MZ.