This article is a list of diseases of hazelnut (Corylus avellana & Corylus spp.).
Piggotia coryli
= Monostichella coryli
= Gloeosporium coryli
= Labrella coryli
Mycosphaerella punctiformis [teleomorph]
Ramularia sp. [anamorph]
Phomopsis spp.
Septoria ostryae
Anguillosporella vermiformis
Asteroma coryli
Cercospora corylina
Cercospora coryli
Mamianiella coryli
Monochaetia coryli
Mycosphaerella punctiformis [teleomorph]
Ramularia sp. [anamorph]
Phyllosticta coryli
Ramularia coryli
Septoria ostryae
Sphaceloma coryli
Microsphaera ellisii
Microsphaera hommae
Microsphaera verruculosa
Phyllactinia guttata
= Phyllactinia suffulta