Ulmus americana 'Exhibition'
Elm cultivar
From Wikipedia, the free encyclopedia
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.
| Ulmus americana 'Exhibition' | |
|---|---|
| Species | Ulmus americana |
| Cultivar | 'Exhibition' |
| Origin | Patmore Nurseries, Brandon, Manitoba, Canada |
Description
The tree has an upright habit, with a dense, vase-shaped canopy formed from branches bearing numerous small twigs.[1]
Pests and diseases
No specific information available, but the species as a whole 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,[2] and highly preferred for feeding by the Japanese beetle Popillia japonica[3][4] in the United States. U. americana is also the most susceptible of all the elms to verticillium wilt.[5]
Cultivation
The tree's status in North America is not known. 'Exhibition' is no longer in commerce.
Synonymy
- 'Exhibition Boulevard': Anon.