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 Gio, thank you for your request and picture. It appears to be a species from the genus Ceroplastes. There are at least four very similar species in your area: Ceroplastes rusci (Fig wax scale), Ceroplastes floridensis (Florida wax scale), Ceroplastes japonicus, and Ceroplastes sinensis (Chinese wax scale). All these species produce waxy coverings that look similar, and they are mainly found in the warmer parts of Europe, particularly in the Mediterranean region. Among these species, Ceroplastes japonicus, Ceroplastes rusci (Fig wax scale), and Ceroplastes floridensis (Florida wax scale) have been reported to infest hawthorn (Crataegus spp.) as a host plant. All of them are polyphagous, meaning they can feed on a wide variety of plants, including ornamental and fruit-bearing species like hawthorn. Identifying these species often requires a detailed examination of their physical characteristics, possibly using a microscope to examine the body structure beneath the wax. There is quite a lot of information about Ceroplastes japonicus on our website. Please visit this page: https://www.forestpests.eu/pest/ceroplastes-japonicus. With best regards, M. Zubrik