Alticinae
Flea beetles
Insects
Cetoniinae
Flower chafers Cetoniinae
Insects
Chalcophora mariana
Flatheaded pine borer
Insects
Colotois pennaria
Feathered thorn
Insects
Crepidodera spp.
Flea beetle Crepidodera spp.
Insects
Cryphalus piceae
Fir bark beetle Cryphalus piceae
Insects
False heardwood
False heardwood
Other
Fistulina hepatica
Fistulina hepatica
Fungi
Flooding
Flooding
Other
Frost
Frost
Other
Fusarium spp.
Fusarium bark disease
Fungi
Fusarium subglutinans
Fusarium subglutinans
Fungi
Total: 28