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Ulmus parvifolia 'D. B. Cole'

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Ulmus parvifolia 'D. B. Cole'
SpeciesUlmus parvifolia
Cultivar'D. B. Cole'
OriginUS

Ulmus parvifolia 'D. B. Cole' is a Chinese Elm cultivar that was selected by the Cole Nursery Company of Circleville, Ohio, in the 1970s[1] and listed in the Arborvillage Farm Nursery (which ceased trading in 2006) of Holt, Missouri, Catalogue of Fall 1991–Spring 1992.[2][3]

Description

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'D. B. Cole' is smaller-growing and denser than the species type. Its Leaves are lustrous, dark green, and red-tinged in the fall. The bark exfoliates on fluted trunks.[1]

Pests and diseases

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The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[4]

Cultivation

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The tree is not known to be in cultivation beyond North America.

Accessions

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None known.

References

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  1. ^ a b U. parvifolia 'D. B. Cole', Species records, Boone County Arboretum
  2. ^ Arborvillage Farm Nursery, Holt, Missouri, Catalogue 1991–1992, p. 21
  3. ^ 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.
  4. ^ "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.