Ulmus parvifolia 'Emer I'
Encyclopedia
The Chinese Elm Ulmus parvifolia Jacq. cultivar 'Emer I' or 'Emerald Isle' (Athena) was cloned from a tree planted circa 1920 on the University of Georgia
campus at Athens
.
, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola
http://www.sunshinenursery.com/survey.htm. As with the species overall, damage caused by Japanese Beetle
is relatively slight .
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
http://treehealth.agsci.colostate.edu/research/nationalelmtrial/NET_Cultivars.htm coordinated by Colorado State University
. 'Emer 1' was introduced to Australia
in 2002 as part of the Australian Urban Street Planting Programme http://www.austep.net.au/evaluations.asp?site_ref=37; it is not known to have been introduced to Europe
.
(Widely available)
Australasia
University of Georgia
The University of Georgia is a public research university located in Athens, Georgia, United States. Founded in 1785, it is the oldest and largest of the state's institutions of higher learning and is one of multiple schools to claim the title of the oldest public university in the United States...
campus at Athens
Athens, Georgia
Athens-Clarke County is a consolidated city–county in U.S. state of Georgia, in the northeastern part of the state, comprising the former City of Athens proper and Clarke County. The University of Georgia is located in this college town and is responsible for the initial growth of the city...
.
Description
'Emer 1' is a small tree rarely exceeding 6 m in height, with a slightly broader, dense and rounded crown http://www.ncsu.edu/jcraulstonarboretum/photography/raulston_slides/raulston_slides_results.php?fullsearch=&box=&slide=&date=&photographer=&country=&usstate=&city=&location=campus&keywords=&othernotes=&plantnames=&commonnames=&families=&digitized=&plantnameID=. The leaves are a medium, glossy green, turning drab brown in autumn. The exfoliating, mottled bark is considered very attractive.http://www.ca.uky.edu/agcollege/plantpathology/vaillanc/for410/Dutch%20Elm%20Disease/BASIC/DED/CORE/00/00/F17.HTML#_AthenaPests and diseases
The species and its cultivars are highly resistant, but not immune, to Dutch elm diseaseDutch elm disease
Dutch elm disease is a disease caused by a member of the sac fungi category, affecting elm trees which is spread by the elm bark beetle. Although believed to be originally native to Asia, the disease has been accidentally introduced into America and Europe, where it has devastated native...
, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola
Xanthogaleruca luteola
Xanthogaleruca luteola, commonly known as the Elm Leaf Beetle, is a serious pest of the elm. Indigenous to Europe, it was accidentally introduced to North America. Both the imagines and larvae feed on the emergent leaves of the elm...
http://www.sunshinenursery.com/survey.htm. As with the species overall, damage caused by Japanese Beetle
Japanese beetle
The beetle species Popillia japonica is commonly known as the Japanese beetle. It is about long and wide, with iridescent copper-colored elytra and green thorax and head...
is relatively slight .
Cultivation
The tree featured in the elm trialshttp://www.for.nau.edu/cms/content/view/512/706/ conducted by Northern Arizona UniversityNorthern Arizona University
Northern Arizona University is a public university located in Flagstaff, Arizona, United States. It is accredited by the North Central Association of Colleges and Schools, and has 39 satellite campuses in the state of Arizona. The university offers both undergraduate and graduate degrees.As of...
at Holbrook, Arizona
Arizona
Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...
, 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
National Elm Trial
The National Elm Trial is an American volunteer effort to evaluate a range of newly developed elm cultivars as replacements for elms destroyed by Dutch elm disease...
http://treehealth.agsci.colostate.edu/research/nationalelmtrial/NET_Cultivars.htm coordinated by Colorado State University
Colorado State University
Colorado State University is a public research university located in Fort Collins, Colorado. The university is the state's land grant university, and the flagship university of the Colorado State University System.The enrollment is approximately 29,932 students, including resident and...
. 'Emer 1' was introduced to Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
in 2002 as part of the Australian Urban Street Planting Programme http://www.austep.net.au/evaluations.asp?site_ref=37; it is not known to have been introduced to Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
.
North America
- Bartlett Tree Experts. Acc. nos. 96-2159, 2000-076,077,079,081,083,084, 2003-941,942, 00-064, L467, L468.
- New York Botanical GardenNew York Botanical Garden- See also :* Education in New York City* List of botanical gardens in the United States* List of museums and cultural institutions in New York City- External links :* official website** blog*...
. Acc. no. 3934/95 - University of IdahoUniversity of IdahoThe University of Idaho is the State of Idaho's flagship and oldest public university, located in the rural city of Moscow in Latah County in the northern portion of the state...
arboretum. One tree. Acc. no. 1998011 - U S National ArboretumUnited States National ArboretumThe United States National Arboretum is an arboretum in Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service as a division of the Henry A. Wallace Beltsville Agricultural Research Center...
http://www.usna.usda.gov/index.htm, Washington, D.C.Washington, D.C.Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....
, USA. Acc. no. 69142.
Nurseries
North America(Widely available)
Australasia
- Fleming's Nursery http://www.flemings.com.au/, Monbulk, Victoria, AustraliaAustraliaAustralia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
.
External links
- http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/cultivars/ulmus_parvifolia.htm Ulmus parvifolia cultivar list.
- 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.