Cultivar 'Augustine' | ||
Origin Bloomington, Illinois, USA People also search for Ulmus americana 'Nigricans' | ||
The American Elm cultivar Ulmus americana 'Augustine' was originally selected in Bloomington, Illinois, in 1927.
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Description
'Augustine' is a fastigiate, vigorous tree distinguished by its thicker branches and larger, more deeply toothed leaves.
Pests and diseases
'Augustine' has proven particularly susceptible to Dutch elm disease, exhibiting 36% crown dieback in one year after inoculation with the pathogen. The species is also highly susceptible to Elm Yellows and 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 the United States, where it is no longer in commerce.