Ulmus americana 'Independence'
- Ulmus americana 'Independence'
Infobox Cultivar | name = "Ulmus americana"
cultivar = 'Independence'
origin = University of Wisconsin-Madison, USAThe American Elm "Ulmus americana" cultivar 'Independence' was raised by Eugene B. Smalley and Donald T. Lester at the University of Wisconsin-Madison from a crossing of the American Elm cultivar Moline and American Elm clone W-185-21, to become one of the six clones forming the American Liberty series, and the only one to be patented (U. S. Plant Patent 6227).
Description
Almost identical to the species.
Pests and diseases
'Independence' has proven only moderately resistant to Dutch elm disease after inoculation with the causal fungus, and is also susceptible to Elm Yellows [Townsend, A. M., Bentz, S. E., and Douglass L. W. (2005). [http://www.elmpost.org/19elms.pdf 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 is not known to be in cultivation beyond North America.
References
External links
*http://www.extension.iastate.edu/Publications/SUL4.pdf Summary, inc. photographs, of elms resistant to Dutch elm disease.
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