Ulmus americana 'Lake City'

Ulmus americana
Cultivar	'Lake City'
Origin	USA

The American Elm cultivar Ulmus americana 'Lake City' was first described by Wyman in Trees Magazine 3 (4): 13, 1940.

Description

The tree has an upright habit, wide at the top and narrow at the base.^[1]

Pests and diseases

The clone's resistance to Dutch Elm Disease is not known, but the species is highly susceptible to the disease and Elm Yellows; it is also moderately preferred for feeding and reproduction by the adult Elm Leaf Beetle Xanthogaleruca luteola ^[2] , and highly preferred for feeding by the Japanese Beetle Popillia japonica ^[3] in the USA. U. americana is also the most susceptible of all the elms to verticillium wilt.^[4]

Cultivation

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

Accessions

North America

• Morton Arboretum. One grafted tree, planted along the DuPage river, reputed to be "in good health" in the autumn of 2006. Acc. no. 861-43.

References

1. Green, P. S. (1964). Registration of cultivar names in Ulmus. Arnoldia, Vol. 24. Arnold Arboretum, Harvard University.
2. Miller, F. and Ware, G. (2001). Resistance of Temperate Chinese Elms (Ulmuss spp.) to Feeding of the Adult Elm Leaf Beetle (Coleoptera: Chrysomelidae). Journal of Economic Entomology 94 (1): 162-166. 2001. Entom. Soc.of America.
3. Miller, F., Ware, G. and Jackson, J. (2001). Preference of Temperate Chinese Elms (Ulmuss spp.) for the Feeding of the Japanese Beetle (Coleoptera: Scarabaeidae). Journal of Economic Entomology 94 (2). pp 445-448. 2001. Entom. Soc.of America.
4. Pegg, G. F. & Brady, B. L. (2002). Verticillium Wilts. CABI Publishing. ISBN 0-85199-529-2

External links

• http://www.bgci.org/plant_search.php?action=Find&ftrGenus=Ulmus&ftrRedList=&ftrSpecies=&ftrRedList1997=&ftrEpithet=&ftrCWR=&x=41&y=19NB. Botanic Gardens Conservation International register
• http://redwood.mortonarb.org/PageBuilder?cid=2&qid=13 Morton Arboretum catalogue