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Ulmus americana 'Patmore'

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Ulmus americana 'Patmore'
SpeciesUlmus americana
Cultivar'Patmore'
OriginBrandon, Manitoba, Canada

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'.[1]

Description

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'Patmore' (or 'Brandon') differs from most American Elms in possessing a pyramidal, as opposed to vase, form.[2]

Pests and diseases

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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,[3] and highly preferred for feeding by the Japanese Beetle Popillia japonica [4][5] in the United States. U. americana is also the most susceptible of all the elms to verticillium wilt.[6][7]

Cultivation

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The tree is not known to have been cultivated beyond North America.

Synonymy

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  • 'Patmore Ascending', as 'grafted elm', Patmore Nursery Sales, Brandon, Cats. 1945 & 1955.
  • 'Patmore Ascending Elm', Patmore Nursery Sales, Brandon, Cat. 1973.
  • 'Exhibition Boulevard Elm', as 'grafted elm', Cat. 1958, and as 'grafted ascending elm' (1966).

Accessions

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North America

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References

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  1. ^ Photograph and synonymy of Ulmus americana 'Patmore', Mundi Plantarum, jardin-florilege.eu
  2. ^ Santamour, Frank S.; Bentz, Susan E. (May 1995). "Updated Checklist of Elm (Ulmus) Cultivars for use in North America". Journal of Arboriculture. 21 (3): 122–131. Retrieved 20 June 2016.
  3. ^ Miller, Fredric; Ware, George (2001-02-01). "Resistance of Temperate Chinese Elms (Ulmus spp.) to Feeding by the Adult Elm Leaf Beetle (Coleoptera: Chrysomelidae)". Journal of Economic Entomology. 94 (1). Oxford University Press (OUP): 162–166. doi:10.1603/0022-0493-94.1.162. ISSN 0022-0493. PMID 11233108. S2CID 42980569.
  4. ^ Miller, Fredric; Ware, George; Jackson, Jennifer (2001-04-01). "Preference of Temperate Chinese Elms ( Ulmus spp.) for the Adult Japanese Beetle (Coleoptera: Scarabaeidae)". Journal of Economic Entomology. 94 (2). Oxford University Press (OUP): 445–448. doi:10.1603/0022-0493-94.2.445. ISSN 0022-0493. PMID 11332837. S2CID 7520439.
  5. ^ "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
  6. ^ Pegg, G. F. & Brady, B. L. (2002). Verticillium Wilts. CABI Publishing. ISBN 0-85199-529-2
  7. ^ "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
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