Elongate Hemlock Scale
Fiorinia externa Ferris
Fiorinia externa Ferris
Ophiostoma novo-ulmi
Cryphonectria parasitica
Sirococcus clavigignenti-juglandacearum
Adelges piceae
Candidatus Phytoplasma fraxini
Adelges tsugae
Cryptococcus fagisuga and Neonectria spp.
Anoplophora glabripennis