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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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Code
Date
Assigned
Status
Days from submission
6858
29.8.2025
V. Longauerová
Completed
13
6526
17.7.2025
M. Zúbrik
Completed
0
6044
31.5.2025
M. Zúbrik
Completed
2
6043
31.5.2025
M. Zúbrik
Completed
2
5862
11.5.2025
S. Rell
Completed
3
5151
7.10.2024
M. Zúbrik
Completed
0
5083
15.9.2024
M. Zúbrik
Completed
0
4795
6.7.2024
M. Zúbrik
Completed
1
4456
8.5.2024
M. Zúbrik
Completed
5
3954
22.11.2023
V. Longauerová
Completed
0

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Scleroderris canker
Kalichovka jedľováKalichovka jedľováKalichovka jedľová
Scleroderris canker
Number: 6858
Received 29.8.2025
In progress: 13 days
Date of occurrence: 29.8.2025
Significance: Very harmful
Discussion
Assigned: V. Longauerová
Country: Slovakia

Question

Answer

Ahoj Majo ,  podľa foto by sa malo jednať o Kalichovku jedľovú Ascocalyx abietina . Viac si prečítaš tu  https://www.forestpests.eu/pest/ascocalyx-abietina Pekný deň.  V.L.
Number of votes for this answer: 1

Pest

Scleroderris canker

Ascocalyx abietina

Scleroderris canker

Ascocalyx abietina

huby

Received: 29.8.2025
Wood: Borovica
Number: 6858
Date of occurrence: 29.8.2025
Discussion

Add comment: Scleroderris canker

Knopper gall
Hrčiarka kalichová
Knopper gall
Number: 6622
Received 1.8.2025
In progress: 0 days
Date of occurrence: 1.8.2025
Significance: Less harmful
Discussion
From: TINA
Assigned: M. Zúbrik
Country: Slovenia

Question

Answer

Hi Tina, than you for your requestt. This is caused by Andricus quercuscalicis, a small wasp species. It's called a Knopper gall. The female wasp lays her eggs on the acorn cup in May and injects a special fluid into it. In response, the oak tree forms a strange growth – a green, irregular lump about 2 cm long, known as a gall. Inside this gall, the wasp larva develops. With best regards Milan Zubrik
Number of votes for this answer: 0

Pest

Knopper gall

Andricus quercuscalicis

Knopper gall

Andricus quercuscalicis

hmyz

Received: 1.8.2025
Wood: Oak
Number: 6622
Date of occurrence: 1.8.2025
Discussion

Add comment: Knopper gall

Poplar spiral gall aphid
Poplar spiral gall aphid
Number: 6526
Received 17.7.2025
In progress: 0 days
Date of occurrence: 17.7.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

Monitoring
Number of votes for this answer: 0

Pest

Poplar spiral gall aphid

Pemphigus spyrothecae

Poplar spiral gall aphid

Pemphigus spyrothecae

hmyz

Received: 17.7.2025
Wood: Poplar
Number: 6526
Date of occurrence: 17.7.2025
Discussion

Add comment: Poplar spiral gall aphid

Aphid Prociphilus bumeliae
Aphid Prociphilus bumeliae
Number: 6044
Received 31.5.2025
In progress: 2 days
Date of occurrence: 31.5.2025
Significance: Less harmful
Discussion
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

Dobrý deň, ďakujeme za dotaz. Je to bežný a honý druh vošky, ktorá žije na jaseni - dutinárka orgovánová Prociphilus bumeliae. Pekný deň M. Zúbrik
Number of votes for this answer: 0

Pest

Aphid Prociphilus bumeliae

Prociphilus bumeliae

Aphid Prociphilus bumeliae

Prociphilus bumeliae

hmyz

Received: 31.5.2025
Wood: Jaseň
Number: 6044
Date of occurrence: 31.5.2025
Discussion

Add comment: Aphid Prociphilus bumeliae

Aphid Prociphilus bumeliae
Aphid Prociphilus bumeliae
Number: 6043
Received 31.5.2025
In progress: 2 days
Date of occurrence: 31.5.2025
Significance: Less harmful
Discussion
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

Dobrý deň, ďakujeme za dotaz. Je to bežný a honý druh vošky, ktorá žije na jaseni - dutinárka orgovánová Prociphilus bumeliae. Pekný deň M. Zúbrik
Number of votes for this answer: 0

Pest

Aphid Prociphilus bumeliae

Prociphilus bumeliae

Aphid Prociphilus bumeliae

Prociphilus bumeliae

hmyz

Received: 31.5.2025
Wood: Jaseň
Number: 6043
Date of occurrence: 31.5.2025
Discussion

Add comment: Aphid Prociphilus bumeliae

Fungus Inonotus hispidus
Fungus Inonotus hispidus
Number: 5914
Received 16.5.2025
In progress: 10 days
Date of occurrence: 16.5.2025
Significance: Less harmful
Discussion
From: Valentina
Assigned: A. Kunca
Country: Germany

Question

Answer

I guess it is Inonotus hispidus. Cheers. Andrej Kunca
Number of votes for this answer: 0

Pest

Fungus Inonotus hispidus

Inonotus hispidus

Fungus Inonotus hispidus

Inonotus hispidus

huby

Received: 16.5.2025
Wood: Oak
Number: 5914
Date of occurrence: 16.5.2025
Discussion

Add comment: Fungus Inonotus hispidus

Pale tussock
Štetinavec orechový Štetinavec orechový Štetinavec orechový
Pale tussock
Number: 5862
Received 11.5.2025
In progress: 3 days
Date of occurrence: 10.5.2025
Significance: Harmful
Discussion
Assigned: S. Rell
Country: Slovakia

Question

Answer

Dobrý deň, ďakujeme za dotaz. Toto je motýľ štetinavec orechový Calliteara pudibunda. S pozdravom M. Zúbrik
Number of votes for this answer: 0

Pest

Pale tussock

Calliteara pudibunda

Pale tussock

Calliteara pudibunda

hmyz

Received: 11.5.2025
Wood: Jabloň
Number: 5862
Date of occurrence: 10.5.2025
Discussion

Add comment: Pale tussock

Pale tussock
Pale tussock
Number: 5151
Received 7.10.2024
In progress: 0 days
Date of occurrence: 7.10.2024
Significance: Harmful
Discussion
From: Jessica
Assigned: M. Zúbrik
Country: Germany

Question

No idea where or what the tree was. Fell out off a bus stop shelter and skedaddled onto the road.

Answer

Dear Jessica, thank you for your inquiry. The larvae in question belong to the well-known pest Calliteara pudibunda, commonly known as the pale tussock moth. It typically feeds on beech (Fagus sylvatica), but it can also be found on a variety of fruit trees. The larvae appear in the second half of summer or autumn and overwinter in the pupal stage. Best regards, M. Zubrik
Number of votes for this answer: 0

Pest

Pale tussock

Calliteara pudibunda

Pale tussock

Calliteara pudibunda

hmyz

Received: 7.10.2024
Wood: -
Number: 5151
Date of occurrence: 7.10.2024
Discussion

Add comment: Pale tussock

Pale tussock
Štetinavec orechový
Pale tussock
Number: 5083
Received 15.9.2024
In progress: 0 days
Date of occurrence: 14.9.2024
Significance: Harmful
Discussion
From: Ilknis
Assigned: M. Zúbrik
Country: Latvia

Question

Answer

Dear Ilknis, this is larva of Calliteara pudibunda - pale tussock. This medium-sized moth and is a pest of European beech forests. With best regards M. Zubrik
Number of votes for this answer: 0

Pest

Pale tussock

Calliteara pudibunda

Pale tussock

Calliteara pudibunda

hmyz

Received: 15.9.2024
Wood: Oak
Number: 5083
Date of occurrence: 14.9.2024
Discussion

Add comment: Pale tussock

Aphid Prociphilus bumeliae
Aphid Prociphilus bumeliae
Number: 4795
Received 6.7.2024
In progress: 1 days
Date of occurrence: 6.7.2024
Significance: Less harmful
Discussion
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

Monitoring: Prociphilus bumeliae
Number of votes for this answer: 0

Pest

Aphid Prociphilus bumeliae

Prociphilus bumeliae

Aphid Prociphilus bumeliae

Prociphilus bumeliae

hmyz

Received: 6.7.2024
Wood: Jaseň
Number: 4795
Date of occurrence: 6.7.2024
Discussion

Add comment: Aphid Prociphilus bumeliae

Aphid Prociphilus bumeliae
Aphid Prociphilus bumeliae
Number: 4456
Received 8.5.2024
In progress: 5 days
Date of occurrence: 8.5.2024
Significance: Less harmful
Discussion
From: Christo
Assigned: M. Zúbrik
Country: Slovakia

Question

Prociphilus ??

Answer

Thank you for your inquiry. Yes, we confirm, this is aphid Prociphilus bumeliae. With best regards MZ
Number of votes for this answer: 0

Pest

Aphid Prociphilus bumeliae

Prociphilus bumeliae

Aphid Prociphilus bumeliae

Prociphilus bumeliae

hmyz

Received: 8.5.2024
Wood: Ash
Number: 4456
Date of occurrence: 8.5.2024
Discussion

Add comment: Aphid Prociphilus bumeliae

Common orange lichen
Diskovník múrový
Common orange lichen
Number: 3954
Received 22.11.2023
In progress: 0 days
Date of occurrence: 22.11.2023
Significance: Harmful
Discussion
Assigned: V. Longauerová
Country: Slovakia

Question

Diskovník múrový, Xanthoria parietina

Answer

Dobrý deň,  ano je to diskovník múrový. Pekné detailné foto. Pekný deň.  V. Longauerová
Number of votes for this answer: 0

Pest

Common orange lichen

Xanthoria parietina

Common orange lichen

Xanthoria parietina

ine

Received: 22.11.2023
Wood: Hruška
Number: 3954
Date of occurrence: 22.11.2023
Discussion

Add comment: Common orange lichen

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