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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

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