Cultivar 'Exhibition' | ||
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The American Elm cultivar Ulmus americana 'Exhibition' is a selection made by the Patmore Nurseries from seeds of a tree at Brandon, Manitoba. Released in 1952, 'Exhibition' was propagated by grafting.
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Description
The tree has an upright habit, with a dense, vase-shaped canopy formed from branches bearing numerous small twigs.
Pests and diseases
Not known. The species is highly susceptible to Dutch Elm Disease and Elm Yellows; it is also moderately preferred for feeding and reproduction by the adult Elm Leaf Beetle Xanthogaleruca luteola [1], and highly preferred for feeding by the Japanese Beetle Popillia japonica [2] [3] in the United States. U. americana is also the most susceptible of all the elms to verticillium wilt.
Cultivation
The tree's status in North America is not known; one specimen survives in the UK at Brighton. 'Exhibition' is no longer in commerce.
Synonymy
Accessions
None known.