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Requests to determine the cause of damage

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.

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A - Ambiguously determined, we are not sure
A - Ambiguously determined, we are not sureA - Ambiguously determined, we are not sureA - Ambiguously determined, we are not sure
A - Ambiguously determined, we are not sure
Number: 7337
Received 12.1.2026
In progress: 3 days
Date of occurrence: 28.4.2025
Significance:
Discussion
From: Antonella
Assigned: J. Vakula
Country: Italy

Question

Hello, I found this branch last spring. It looks like it contains traces of different bark beetles. I can clearly see only one mating system with a nuptial chamber and others without the chamber. Thank you in advance for your help! Best regards Antonella

Answer

Hello,I think it is a species of the genus Pityogenes, probably P. bidntatus or P. quadridens.Best regardsJozef Vakula
Number of votes for this answer: 0

Pest

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

Received: 12.1.2026
Wood: Pine
Number: 7337
Date of occurrence: 28.4.2025
Discussion

Add comment: A - Ambiguously determined, we are not sure

European fir engraver beetle
Lykožrút korunovýLykožrút korunový
European fir engraver beetle
Number: 7334
Received 12.1.2026
In progress: 1 days
Date of occurrence: 24.7.2025
Significance: Harmful
Discussion
Assigned: J. Vakula
Country: Italy

Question

Hello, could you please help me to identify the little pest that left these galleries? Thank you very much in Advance. Best regards, Antonella

Answer

Hello,even though the galleries are old, I think it is Pityokteines vorontzowi. It is possible to confuse it with the species Pityophthorus pityographus, which has longer maternal tunnels and density larval tunnels.Best regardsJozef Vakula
Number of votes for this answer: 0

Pest

European fir engraver beetle

Pityokteines vorontzovi

European fir engraver beetle

Pityokteines vorontzovi

hmyz

Received: 12.1.2026
Wood: Fir
Number: 7334
Date of occurrence: 24.7.2025
Discussion

Add comment: European fir engraver beetle

Two-toothed pine beetle
Lykožrút dvojzubýLykožrút dvojzubý
Two-toothed pine beetle
Number: 7326
Received 11.1.2026
In progress: 1 days
Date of occurrence: 24.7.2025
Significance: Less harmful
Discussion
From: Antonella
Assigned: J. Galko
Country: Italy

Question

Hi, in this branch there are two types of traces. Could you tell me which kind of insects left them? Thank you very much! Best regards Antonella

Answer

Dear Antonella. The gallery with long tunnels looks like from Pityogenes bidentatus (commom on pine) and the third pictures looks like gallery created by Buprestidae family, I guess Anthaxia spp. See these species in our atlas or just Google it. Best regards, Juraj
Number of votes for this answer: 0

Pest

Two-toothed pine beetle

Pityogenes bidentatus

Two-toothed pine beetle

Pityogenes bidentatus

hmyz

Received: 11.1.2026
Wood: Fir
Number: 7326
Date of occurrence: 24.7.2025
Discussion

Add comment: Two-toothed pine beetle

A - Ambiguously determined, we are not sure
A - Ambiguously determined, we are not sureA - Ambiguously determined, we are not sureA - Ambiguously determined, we are not sure
A - Ambiguously determined, we are not sure
Number: 5965
Received 23.5.2025
In progress: 0 days
Date of occurrence: 27.4.2025
Significance:
Discussion
From: Antonella
Assigned: J. Vakula
Country: Italy

Question

Hi, this is a piece of wood that I found on the ground. In a coniferous forests (pine, fir). Thank you in advance. Best regards Antonella

Answer

Hello,the pictures show the galleries of long horne beetles (Cerambycidae). Probably species from the genus Tetropiu, e.g. Tetropiu fuscum. These are species whose larvae live on dead or weakened coniferous trees.Nice photos. Best regardsJozef Vakula
Number of votes for this answer: 0

Pest

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

hmyz

Received: 23.5.2025
Wood: Pine
Number: 5965
Date of occurrence: 27.4.2025
Discussion

Add comment: A - Ambiguously determined, we are not sure

Ash bark beetle
Lykokaz jaseňovýLykokaz jaseňovýLykokaz jaseňový
Ash bark beetle
Number: 5915
Received 17.5.2025
In progress: 2 days
Date of occurrence: 9.6.2024
Significance: Harmful
Discussion
From: Antonella
Assigned: J. Galko
Country: Italy

Question

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
Number of votes for this answer: 0

Pest

Ash bark beetle

Hylesinus varius (=fraxini)

Ash bark beetle

Hylesinus varius (=fraxini)

hmyz

Received: 17.5.2025
Wood: Jaseň
Number: 5915
Date of occurrence: 9.6.2024
Discussion

Add comment: Ash bark beetle

A - Ambiguously determined, we are not sure
A - Ambiguously determined, we are not sureA - Ambiguously determined, we are not sureA - Ambiguously determined, we are not sure
A - Ambiguously determined, we are not sure
Number: 5798
Received 28.4.2025
In progress: 0 days
Date of occurrence: 28.4.2025
Significance:
Discussion
From: Antonella
Assigned: J. Vakula
Country: Italy

Question

Hi, this is a piece of wood that I found on the ground, maybe pine or fir.

Answer

Hello,nice photos. The galleries probably belong to the species Pityophthorus pityographus, which is a polyphagous species. It is abundant in forests. It is not a pest, it develops on dead wood.Best regardsJozef Vakula
Number of votes for this answer: 0

Pest

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

A - Ambiguously determined, we are not sure

hmyz

Received: 28.4.2025
Wood: Pine
Number: 5798
Date of occurrence: 28.4.2025
Discussion

Add comment: A - Ambiguously determined, we are not sure

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