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 (DED). It is coordinated by Colorado State University.

The trial began in 2005, but has been restricted to elm cultivars commercially available in the USA, unlike the trial conducted by Iowa State University in the 1970s which included the most recent European developments. The trial will be conducted for 10 years, with annual assessments of each tree for height, diameter, crown characteristics, and fall color, as well as response to vascular diseases, canker diseases, foliar diseases, insect infestations, bark beetle infestations, and abiotic damages. Stated goals of the trial are as follows:

  • Determine the growth and horticultural performance of commercially available DED-resistant elm cultivars in various climate regimes in the United States.
  • Determine the relative disease, insect, and abiotic stress tolerance of these cultivars.
  • Promote the propagation and use of elms through local, regional, and national reporting of the trial results to wholesale tree propagators and growers, retail nursery and garden center operators, landscaper designers, arborists, and the general public.

As of January 2000, 19 distinct cultivars are being evaluated in regional trials taking place under the scientific supervision of Auburn University, University of California at Davis, Colorado State University, Purdue University, Iowa State University, Kansas State University, Michigan State University, University of Minnesota, Rutgers University, State University of New York, North Dakota State University, Ohio State University, Utah State University, University of Vermont, Washington State University, and West Virginia University.

List of cultivars included in the trial

See also

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Dutch elm disease — Branch death, or flagging, at multiple locations in the crown of a diseased elm Dutch elm disease (DED) 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 …   Wikipedia

  • National Register of Historic Places listings in New Haven, Connecticut — Location of New Haven in Connecticut This is a list of National Register of Historic Places listings in New Haven, Connecticut. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in… …   Wikipedia

  • Elm Bank Horticulture Center — The Elm Bank Horticulture Center 36 acres (14.6 hectares) is the home of the Massachusetts Horticultural Society, located at 900 Washington Street (Route 16), Wellesley, Massachusetts, USA. The site includes open fields and meadows, streams and… …   Wikipedia

  • Ulmus 'New Horizon' — Ulmus hybrid New Horizon , Groningen. Photo: Ronnie Nijboer, Bonte Hoek kwekerijen Details Hybrid pa …   Wikipedia

  • Ulmus 'Frontier' — Ulmus hybrid Details Hybrid parentage U. minor subsp. minor × U. parvifolia Cultivar Frontier Origin USA …   Wikipedia

  • Ulmus americana 'New Harmony' — Ulmus americana Details Cultivar New Harmony Origin Maryland Agricultural Research Service, USA The American Elm Ulmus americana cultivar New Harmony was raised by the Maryland Agricultural Research Service and released by the United States …   Wikipedia

  • Ulmus 'Morton' — Ulmus hybrid Accolade , Morton Arboretum, Illinois Details Hybrid parentage U. davidiana var. japoni …   Wikipedia

  • Ulmus 'Morton Plainsman' — Ulmus hybrid Details Hybrid parentage U. pumila × U. davidiana var. japonica Cultivar Morton Plainsman = Vanguard™ Origin …   Wikipedia

  • Ulmus 'Morton Stalwart' — Ulmus hybrid Commendation Elm [1] Details …   Wikipedia

  • Ulmus 'Morton Glossy' — Ulmus hybrid Triumph , aged 4 years, Great Fontley, UK Details Hybrid parentage Morton (Accolade) × Mo …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”