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