This article is a list of diseases of hazelnut (Corylus avellana & Corylus spp.).
Bacterial diseases
Bacterial diseases | |
---|---|
Bacterial blight | Xanthomonas arboricola pv. corylina |
Bacterial canker | Pseudomonas syringae pv avellanae |
Crown gall | Agrobacterium tumefaciens |
Fungal diseases
Fungal diseases | |
---|---|
Anthracnose |
Piggotia coryli |
Armillaria root disease | Armillaria spp. |
Borro sec | Cryptosporiopsis tarraconensis |
Cytospora canker | Cytospora spp. |
Eastern filbert blight | Anisogramma anomala |
Kernel molds |
Mycosphaerella punctiformis [teleomorph] |
Kernel spot | Nematospora coryli |
Leaf blister | Taphrina coryli |
Leaf spots |
Anguillosporella vermiformis |
Nectria canker | Nectria ditissima |
Texas root rot | Phymatotrichopsis omnivora |
Powdery mildew | Microsphaera coryli Microsphaera ellisii |
Rust | Pucciniastrum coryli |
Viral diseases
Viral diseases | |
---|---|
Hazelnut mosaic | genus Ilarvirus, Apple mosaic virus (ApMV) genus Ilarvirus, Prunus necrotic ringspot virus (PNRSV) |
Phytoplasmal and spiroplasmal diseases
Phytoplasmal and spiroplasmal diseases | |
---|---|
Filbert Stunt | unknown, suspect a phytoplasma |
Hazelnut Yellows | phytoplasma |
Miscellaneous diseases and disorders
Miscellaneous diseases and disorders | |
---|---|
Blanks | empty nut shells, cause unknown |
Brown Stain | brown liquefied portions of shell and kernel, cause unknown |
Catkin Blast | deformed catkins, cause unknown |
Sun Scald | high temperature |
Wet Feet | saturated soil conditions for extended periods. |