Many exist, but cold hardiness varies. Those hardy to zone 5 include
Bacterial Disease
Environmental Damage
Fungal Disease
Insect Damage
Phytoplasma Disease
Additional pests and problems that may affect this plant:
Elm leaf beetles and Japanese beetles can be a problem, but to a lesser extent than seen on other elms. This species can be affected by Dutch Elm Disease, but is considered to have good resistance to the deadly disease.