Here you can request to determine the cause of the damage. You can view the requests of other users and sort them according to the selected criteria. In addition, you can get information about your request, and you can follow the progress of its current state. If your application was not approved, it had probably been because it was impossible to identify the damage based on the sent photos or because the application does not address our topic - determining the pests of trees and shrubs. We will inform you about the status of your application by email.
on Mespilus germanica on thin part trunk/first branches. Lg on pictures excavated by woodpeckers. LG zigzagging deeply sunken in the wood, severe damage, but tree still alive. d-shape exit holes 3,5mm wide. not all exit holes are neatly d-shaped.
Answer
Dear Froukje, thanks for this question and a nice pictures. Yes, the gallery seems to me very much like gallery system of Agrilus sinuatus. This species is very probably the author of this gallery. With best regards M. Zubrik
large feeding galleries, d-shape exit holes. Could only be agrilus ater? by description agrilus suvurovi could fit. but cannot find a trace or even acknowledgement of existence in the netherlands. is it a new species?
Answer
Thank you for your request and a nice pictures. Yes, it is absolutely sure, these galleries and exit holes belongs to some species from the genus Agrilus. I think it could be A. ater, that is already known from Netherlands. See: https://www.tuite.nl/iwg/Coleoptera/Agrilus_ater2017.pdf. Best regards M. Zubrik
5-6 mm long beetle on olive tree (not in the list),
It should be Rhodocyrtus cribripennis, a pest in olive tree plantations.
Please identify.
Yours sincerely
Marián
Answer
Thank you for the request. Yes, it is Rhodocyrtus cribripennis. Best regards.MZ
