'Maine' is a selection of the American Elm Ulmus americana made by the USNA 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 exhibiting 30% crown dieback in one year after inoculation with the disease's causal fungus.[1]

Cultivation

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

Accessions

North America

None known.

References

  1. ^ 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.