New Harmony (elm cultivar)

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The American Elm U. americana cultivar New Harmony is the second most Dutch elm disease resistant American Elm (after Valley Forge), and was released with Valley Forge to wholesale nurseries by the U. S. National Arboretum in 1995. Raised by the Maryland Agricultural Research Service, it is considered to have more attractive foliage than its sibling but, although resistant to elm leaf beetle, like all other American Elm cultivars New Harmony is susceptible to elm yellows. The parent tree is already over 20 m high, with a slightly greater crown spread. The bole divides into several erect branches about 10 m above the ground terminating in slender, pendulous branchlets.

The tree is named for the Indiana town renown for its social innovations in the 19th century.

[edit] References

• 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.

[edit] External links

• http://www.sunshinenursery.com/elms.htm Review of current elm selections in the USA.
• http://fletcher.ces.state.nc.us/programs/nursery/metria/metria11/warren/elm.htm Return of the Elm -the status of elms in the nursery industry in 2000. Warren, K., J. Frank Schmidt and Co.