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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
7458
21.2.2026
michal.lalik@nlcsk.org
Completed
3
7456
20.2.2026
A. Kunca
Completed
4
7409
27.1.2026
R. Leontovyč
Completed
7
7407
27.1.2026
A. Kunca
Completed
7
7349
16.1.2026
R. Leontovyč
Completed
1
7341
14.1.2026
R. Leontovyč
Completed
1
7340
14.1.2026
A. Kunca
Completed
2
7325
9.1.2026
R. Leontovyč
Completed
4
7323
8.1.2026
A. Gubka
Completed
1
7315
7.1.2026
R. Leontovyč
Completed
1

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Horse-chestnut leaf miner
Horse-chestnut leaf miner
Number: 7103
Received 26.10.2025
In progress: 1 days
Date of occurrence: 26.10.2025
Significance: Harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Horse-chestnut leaf miner

Cameraria ohridella

Horse-chestnut leaf miner

Cameraria ohridella

hmyz

Received: 26.10.2025
Wood: Pagaštan
Number: 7103
Date of occurrence: 26.10.2025
Discussion

Add comment: Horse-chestnut leaf miner

False Turkey tail
False Turkey tail
Number: 7086
Received 20.10.2025
In progress: 9 days
Date of occurrence: 20.10.2025
Significance: Very harmful
Discussion
Assigned: A. Kunca
Country: Slovakia

Question

pevník chlpatý

Answer

Môže byť Stereum hirsutum. Pri determinácii je dôležité vidieť hyménium - teda spodnú stranu "klobúka", či je hladké, lupeňovité, rúrkovité, ostnité, rebrovité, ... pretože vrchná strana plodnice môže byť podobná u viacerých druhov. Ale pekná fotka a správna determinácia! Dík. AK.
Number of votes for this answer: 0

Pest

False Turkey tail

Stereum hirsutum

False Turkey tail

Stereum hirsutum

huby

Received: 20.10.2025
Wood: Čerešňa
Number: 7086
Date of occurrence: 20.10.2025
Discussion

Add comment: False Turkey tail

Cynipid gall wasp Cynips quercusfolii
Cynipid gall wasp Cynips quercusfolii
Number: 7079
Received 18.10.2025
In progress: 4 days
Date of occurrence: 17.10.2025
Significance: Less harmful
Discussion
From: Sonica
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

Ďakujeme za dotaz. Na obrázku sú hálky druhu hrčiarka listová (Cynips quercusfolii). Ide o druh drobného hmyzu, ktorého larvy žijú vo vnútri takýchto útvarov. Strom ich vytvára ako reakciu na chemické látky, ktoré samička tohto druhu vstrekuje do rastliny pri kladení vajíčka. S pozdravom, Milan Zúbrik
Number of votes for this answer: 0

Pest

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

hmyz

Received: 18.10.2025
Wood: Dub
Number: 7079
Date of occurrence: 17.10.2025
Discussion

Add comment: Cynipid gall wasp Cynips quercusfolii

Erysiphe palczewskii
Múčnatka Palczewskeho
Erysiphe palczewskii
Number: 7071
Received 14.10.2025
In progress: 0 days
Date of occurrence: 10.9.2025
Significance: Less harmful
Discussion
From: andrej
Assigned: A. Kunca
Country: Slovakia

Question

Answer

Nepôvodná múčnatka Erysiphe palczewskii. AK.
Number of votes for this answer: 0

Pest

Erysiphe palczewskii

Erysiphe palczewskii

Erysiphe palczewskii

Erysiphe palczewskii

huby

Received: 14.10.2025
Wood: Karagana
Number: 7071
Date of occurrence: 10.9.2025
Discussion

Add comment: Erysiphe palczewskii

Turkey tail
Turkey tail
Number: 7065
Received 12.10.2025
In progress: 1 days
Date of occurrence: 12.10.2025
Significance: Less harmful
Discussion
From: Ivana
Assigned: A. Kunca
Country: Slovakia

Question

Answer

Trúdnikovec pestrý - Trametes versicolor. Andrej
Number of votes for this answer: 0

Pest

Turkey tail

Trametes versicolor

Turkey tail

Trametes versicolor

huby

Received: 12.10.2025
Wood: Buk
Number: 7065
Date of occurrence: 12.10.2025
Discussion

Add comment: Turkey tail

Elm-leaf beetle
Liskavka brestováLiskavka brestová
Elm-leaf beetle
Number: 7062
Received 12.10.2025
In progress: 0 days
Date of occurrence: 12.10.2025
Significance: Harmful
Discussion
From: Noah
Assigned: M. Zúbrik
Country: Germany

Question

The leaves have patchy, translucent or tan areas some leaves show more extensive damage and curling after the green tissue between the veins are eaten. Topside of the leafes are covered in small black excrements and on the bottom of leafes are alot of 1-2mm small empty pupa as seen on one of the Photos.

Answer

Dear Noah, in my opinion, this is not hornbeam but elm. If so, the symptoms match damage caused by Xanthogaleruca luteola (elm leaf beetle). Have a nice evening, Milan Zubrik
Number of votes for this answer: 0

Pest

Elm-leaf beetle

Xanthogaleruca luteola

Elm-leaf beetle

Xanthogaleruca luteola

hmyz

Received: 12.10.2025
Wood: Hornbeam
Number: 7062
Date of occurrence: 12.10.2025
Discussion

Add comment: Elm-leaf beetle

Western conifer seed bug
Obrubnica americkáObrubnica americká
Western conifer seed bug
Number: 7049
Received 3.10.2025
In progress: 0 days
Date of occurrence: 3.10.2025
Significance: Less harmful
Discussion
From: Fysh
Assigned: M. Zúbrik
Country: United Kingdom

Question

Answer

Dear Fysh, this is Leptoglossus occidentalis - Western conifer seed bug. Considered as the main seed predator in seed orchards of Western North America. This large-sized bug (1.6-2 cm long) has been accidentally introduced into northern Italy during the late 1990s (first record 1999). It then invaded the whole Central and Western Europe. Overwintering occurs as an adult in bark crevices or into buildings where it can enter in large numbers in autumn. With best regards Milan Zubrik
Number of votes for this answer: 0

Pest

Western conifer seed bug

Leptoglossus occidentalis

Western conifer seed bug

Leptoglossus occidentalis

hmyz

Received: 3.10.2025
Wood: Fir
Number: 7049
Date of occurrence: 3.10.2025
Discussion

Add comment: Western conifer seed bug

Red deer
Jeleň lesný
Red deer
Number: 7029
Received 27.9.2025
In progress: 2 days
Date of occurrence: 27.9.2025
Significance: Very harmful
Discussion
Assigned: A. Gubka
Country: Slovakia

Question

poškodenie danielom škvrnitým

Answer

Škody zverou
Number of votes for this answer: 0

Pest

Red deer

Cervus elaphus

Red deer

Cervus elaphus

zver

Received: 27.9.2025
Wood: Orech
Number: 7029
Date of occurrence: 27.9.2025
Discussion

Add comment: Red deer

Orange spruce needleminer
Psota americkáPsota americká
Orange spruce needleminer
Number: 7017
Received 22.9.2025
In progress: 2 days
Date of occurrence: 22.9.2025
Significance: Harmful
Discussion
From: Libuša
Assigned: V. Longauerová
Country: Slovakia

Question

Answer

Dobrý deň,  podľa foto sa pravdepodobne jedná o Psotu americkú . Viac si prečítate tu https://www.skodcoviadrevin.sk/skodca/psota-americka Pekný deň.  V. Longauerová 
Number of votes for this answer: 0

Pest

Orange spruce needleminer

Coleotechnites piceaella

Orange spruce needleminer

Coleotechnites piceaella

hmyz

Received: 22.9.2025
Wood: Smrek
Number: 7017
Date of occurrence: 22.9.2025
Discussion

Add comment: Orange spruce needleminer

Silk button gall
Silk button gall
Number: 7012
Received 22.9.2025
In progress: 0 days
Date of occurrence: 16.9.2025
Significance: Less harmful
Discussion
Assigned: M. Zúbrik
Country: Unknow

Question

Neuroterus numismalis new in yours web site

Answer

Thanks for pictures and locations. Best regards Milan Zubrik
Number of votes for this answer: 0

Pest

Silk button gall

Neuroterus numismalis

Silk button gall

Neuroterus numismalis

hmyz

Received: 22.9.2025
Wood: Oak
Number: 7012
Date of occurrence: 16.9.2025
Discussion

Add comment: Silk button gall

Cynipid gall wasp Cynips quercusfolii
Cynipid gall wasp Cynips quercusfolii
Number: 7010
Received 22.9.2025
In progress: 0 days
Date of occurrence: 16.9.2025
Significance: Less harmful
Discussion
Assigned: M. Zúbrik
Country: Unknow

Question

Cynips quercusfolii

Answer

Thanks for pictures and locations. Best regards Milan Zubrik
Number of votes for this answer: 0

Pest

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

hmyz

Received: 22.9.2025
Wood: Oak
Number: 7010
Date of occurrence: 16.9.2025
Discussion

Add comment: Cynipid gall wasp Cynips quercusfolii

Blushing Bracket
Sieťkovček červenkastý
Blushing Bracket
Number: 7008
Received 21.9.2025
In progress: 3 days
Date of occurrence: 21.9.2025
Significance: Very harmful
Discussion
From: Andrej
Assigned: V. Longauerová
Country: Slovakia

Question

Answer

Ahoj Andrej , podľa foto sa jedná Sieťkovšek červenkastý.  V.L.
Number of votes for this answer: 0

Pest

Blushing Bracket

Daedaleopsis confragosa

Blushing Bracket

Daedaleopsis confragosa

huby

Received: 21.9.2025
Wood: Dub
Number: 7008
Date of occurrence: 21.9.2025
Discussion

Add comment: Blushing Bracket

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