Reference citation: Jay W. Pscheidt and Jeffrey Stone, primary collators (last update 7/21/01). Diseases of European Hazelnut (Corylus avellana L.) Hazelnut (Corylus spp.). The American Phytopathological Society. Accessed on 2019-10-24 at https://www.apsnet.org/edcenter/resources/commonnames/Pages/Hazelnut.aspx
Reference citation: carnifex. 2020. Phyllactinia guttata name of associated plant Corylus avellana. iNaturalist.org. Accessed at on 23 Jan 2021.
Source citation: http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world.