Biology:Ulmus americana 'Jackson'
| Ulmus americana 'Jackson' | |
|---|---|
| Species | Ulmus americana |
| Cultivar | 'Jackson' |
| Origin | Wichita, Kansas, US |
The American Elm cultivar Ulmus americana 'Jackson' was cloned c.1990 from an elm selected at Wichita, Kansas , which had reputedly shewn no signs of Dutch elm disease damage at over 50 years of age.[1]
Description
The elm is "oak-like" in form, with wide-spreading branches, growing to about 60 ft tall and wide.[2]
Pests and diseases
The resistance of 'Jackson' to Dutch Elm Disease had not as of 1995 been confirmed by artificial inoculation.[1] The species as a whole 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
As a nursery cultivar, 'Jackson' was last listed in the Fall 1994 - Spring 1995 catalogue of the now-defunct Arborvillage Farm Nurseries, Holt, Missouri. A specimen, planted in 1999, stands (2022) in Dawes Arboretum, Newark, Ohio, where it is said to be fast-growing. A specimen obtained from Arborvillage Farm Nurseries in 2000 stood in the Botanic Garden of Mount Holyoke College, South Hadley, Massachusetts, till destroyed in a storm in 2011.[8] The tree is not known to have been introduced to Europe or Australasia.
Accessions
North America
- Dawes Arboretum [1], Newark, Ohio, US. 1 tree (2022), accession no.: D1999-0081.001
References
- ↑ 1.0 1.1 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. http://joa.isa-arbor.com/request.asp?JournalID=1&ArticleID=2673&Type=2. Retrieved 20 June 2016.
- ↑ Ulmus americana 'Jackson', The Dawes Arboretum, Arboretum Explorer (Newark, Ohio) dawesarb.arboretumexplorer.org
- ↑ 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 (Oxford University Press (OUP)) 94 (1): 162–166. doi:10.1603/0022-0493-94.1.162. ISSN 0022-0493. PMID 11233108.
- ↑ 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 (Oxford University Press (OUP)) 94 (2): 445–448. doi:10.1603/0022-0493-94.2.445. ISSN 0022-0493. PMID 11332837.
- ↑ "Elm Leaf Beetle Survey". http://www.sunshinenursery.com/survey.htm.
- ↑ Pegg, G. F. & Brady, B. L. (2002). Verticillium Wilts. CABI Publishing. ISBN:0-85199-529-2
- ↑ "Elm Leaf Beetle Survey". http://www.sunshinenursery.com/survey.htm.
- ↑ U. americana 'Jackson', Mount Holyoke College, Acc. no. 20000409*1 mtholyoke.edu
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