Ulmus parvifolia 'Emer I'

Ulmus parvifolia 'Emer I'
Species	Ulmus parvifolia
Cultivar	'Emer I' or 'Emerald Isle' = Athena
Origin	US

The Chinese Elm cultivar Ulmus parvifolia 'Emer I' or 'Emerald Isle' (trade designation: Athena) was cloned from a tree planted circa 1920 on the University of Georgia campus at Athens.[1]

Description

Athena is a small tree rarely exceeding 6 m in height, with a slightly broader, dense and rounded crown.[2] The leaves are a medium, glossy green, turning drab brown in autumn. The exfoliating, mottled bark is considered very attractive.[3]

Pests and diseases

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] As with the species overall, damage caused by Japanese Beetle is relatively slight.[5]

Cultivation

Athena featured in the elm trials conducted by Northern Arizona University at Holbrook, Arizona, but was unsuited to the hot, arid climate and sustained over 50% mortality in its first year. It is currently being evaluated in the National Elm Trial coordinated by Colorado State University. Athena was introduced to Australia in 2002 as part of the Australian Urban Street Planting Programme ; it is not known to have been introduced to Europe.

Synonymy

? 'Athena Classic' (unchecked name)

Accessions

North America

Bartlett Tree Experts, US. Acc. nos. 96-2159, 2000-076,077,079,081,083,084, 2003-941,942, 00-064, L467, L468.
New York Botanical Garden, US. Acc. no. 3934/95
University of Idaho arboretum, US. One tree. Acc. no. 1998011
U S National Arboretum , Washington, D.C., US. Acc. no. 69142.

Nurseries

North America

(Widely available)

Australasia

Fleming's Nursery , Monbulk, Victoria, Australia.

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References

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.
"Ulmus parvifolia 'Emer I' = ATHENA". JC Raulston Arboretum. Retrieved 2018-08-01. 41677
ca.uky.edu, Plant Pathology, Ulmus parvifolia 'Emer I' = ATHENA
"Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
Brady, C., Condra, J., & Potter, D. (2008) Resistance of Landscape-suitable Elm (Ulmus spp.) Cultivars to Japanese Beetle, Leaf Miners, and Gall Makers. 2008 Research Report, Nursery & Landscape Program, pp 15, 16. University of Kentucky.

External links

http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/cultivars/ulmus_parvifolia.htm%5B%5D Ulmus parvifolia cultivar list.
https://web.archive.org/web/20030413074605/http://fletcher.ces.state.nc.us/programs/nursery/metria/metria11/warren/elm.htm Return of the Elm - the status of elms in the nursery industry in 2000. Warren, K., J. Frank Schmidt and Co.

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[Santamour-1] 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.

[JC_Raulston_41677-2] "Ulmus parvifolia 'Emer I' = ATHENA". JC Raulston Arboretum. Retrieved 2018-08-01. 41677

[3] .uky.edu, Plant Pathology, Ulmus parvifolia 'Emer I' = ATHENA

[4] "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.

[Brady-5] Brady, C., Condra, J., & Potter, D. (2008) Resistance of Landscape-suitable Elm (Ulmus spp.) Cultivars to Japanese Beetle, Leaf Miners, and Gall Makers. 2008 Research Report, Nursery & Landscape Program, pp 15, 16. University of Kentucky.