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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.
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
Rejected requests are not displayed. You have been notified by email that your application has been denied.
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
Received: 29.8.2025
Wood: Borovica
Number: 6858
Date of occurrence: 29.8.2025
Discussion
Add comment: Scleroderris canker
Number: 6622
Received 1.8.2025
In progress: 0 days
Date of occurrence: 1.8.2025
Significance: Less harmful
Discussion
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
Received: 1.8.2025
Wood: Oak
Number: 6622
Date of occurrence: 1.8.2025
Discussion
Add comment: Knopper gall
Number: 6526
Received 17.7.2025
In progress: 0 days
Date of occurrence: 17.7.2025
Significance: Less harmful
Discussion
Poplar spiral gall aphid
Pemphigus spyrothecae
Received: 17.7.2025
Wood: Poplar
Number: 6526
Date of occurrence: 17.7.2025
Discussion
Add comment: Poplar spiral gall aphid
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
Received: 31.5.2025
Wood: Jaseň
Number: 6044
Date of occurrence: 31.5.2025
Discussion
Add comment: 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
Received: 31.5.2025
Wood: Jaseň
Number: 6043
Date of occurrence: 31.5.2025
Discussion
Add comment: Aphid Prociphilus bumeliae
Number: 5914
Received 16.5.2025
In progress: 10 days
Date of occurrence: 16.5.2025
Significance: Less harmful
Discussion
Fungus Inonotus hispidus
Inonotus hispidus
Received: 16.5.2025
Wood: Oak
Number: 5914
Date of occurrence: 16.5.2025
Discussion
Add comment: Fungus Inonotus hispidus
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
Received: 11.5.2025
Wood: Jabloň
Number: 5862
Date of occurrence: 10.5.2025
Discussion
Add comment: Pale tussock
Number: 5151
Received 7.10.2024
In progress: 0 days
Date of occurrence: 7.10.2024
Significance: Harmful
Discussion
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
Received: 7.10.2024
Wood: -
Number: 5151
Date of occurrence: 7.10.2024
Discussion
Add comment: Pale tussock
Number: 5083
Received 15.9.2024
In progress: 0 days
Date of occurrence: 14.9.2024
Significance: Harmful
Discussion
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
Received: 15.9.2024
Wood: Oak
Number: 5083
Date of occurrence: 14.9.2024
Discussion
Add comment: Pale tussock
Number: 4795
Received 6.7.2024
In progress: 1 days
Date of occurrence: 6.7.2024
Significance: Less harmful
Discussion
Aphid Prociphilus bumeliae
Prociphilus bumeliae
Received: 6.7.2024
Wood: Jaseň
Number: 4795
Date of occurrence: 6.7.2024
Discussion
Add comment: Aphid Prociphilus bumeliae
Number: 4456
Received 8.5.2024
In progress: 5 days
Date of occurrence: 8.5.2024
Significance: Less harmful
Discussion
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
Received: 8.5.2024
Wood: Ash
Number: 4456
Date of occurrence: 8.5.2024
Discussion
Add comment: Aphid Prociphilus bumeliae
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
Received: 22.11.2023
Wood: Hruška
Number: 3954
Date of occurrence: 22.11.2023
Discussion
Add comment: Common orange lichen