Cultivar 'Patmore' | ||
Origin Brandon, Manitoba, Canada People also search for Ulmus americana 'Nigricans' | ||
The American Elm cultivar Ulmus americana 'Patmore' was selected and raised by R. H. Patmore from a native tree in Brandon, Manitoba, Canada. It may be synonymous with another cultivar from the same source, known as 'Brandon'.
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Description
'Patmore' (or 'Brandon') differs from most American Elms in possessing a pyramidal, as opposed to vase, form.
Pests and diseases
No other specific information available, but the species generally 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 is not known to have been cultivated beyond North America.