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 Ignacio, thank you for your inquiry. Browning of leaf edges is most commonly caused by a physiological issue. This can include extreme dryness, lack of moisture, intense sunlight, or a combination of these factors. The impact of emissions cannot be ruled out either, especially if the tree is growing near a road. Insects or fungi generally do not cause this type of damage—or if they do, it is less common. Moreover, in the photo, I do not see any insect or fungus that could potentially cause such damage under certain circumstances. Best regards, M. Zúbrik