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.
Dear Andrea, Thank you for your inquiry. The information provided is not sufficient to determine the cause of the damage. If it is indeed an elm (the photograph does not make this entirely clear), it is worth noting that a whole group of bark beetle species from the genus Scolytus can affect elm trees. You can read more about them here: https://www.forestpests.eu/pest/scolytus-spp&rurl=YXRsYXMmYW1wO2ZpbHRlcj00OCZhbXA7cD00. However, other possible causes of the damage cannot be ruled out either. Have a nice day, M. Zúbrik