'Maine' is a selection of the American Elm ''

Ulmus americana ''Ulmus americana'', generally known as the American elm or, less commonly, as the white elm or water elm, is a species of elm native to eastern North America, naturally occurring from Nova Scotia west to Alberta and Montana, and south to Flor ...

'' made by the

USNA The United States Naval Academy (US Naval Academy, USNA, or Navy) is a federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as Secretary of the Navy. The Naval Academy is ...

for use in disease-resistance trials. It has not been formally registered as a cultivar.

Description

Not available.

Pests and diseases

'Maine' proved particularly susceptible to

Dutch elm disease Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Although believed to be originally native to Asia, the disease was accidentally introduced into Americas, America ...

exhibiting 30% crown dieback in one year after inoculation with the disease's causal fungus.Townsend, A. M., Bentz, S. E., and Douglass L. W. (2005)
Evaluation of 19 American Elm Clones for Tolerance to Dutch Elm Disease
''Journal of Environmental Horticulture'', March 2005, Horticultural Research Institute, Washington, D.C.

Cultivation

The tree it is not known to have been cultivated beyond the United States.

Accessions

North America

None known.

References

{{Elm species, varieties, hybrids, hybrid cultivars and species cultivars , state=collapsed American elm cultivar Ulmus articles missing images Ulmus