''Ulmus davidiana'' var. ''japonica'' 'JFS-Bieberich' (sold as ) is a Japanese Elm cultivar that was raised by the Sunshine Nursery,

Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

, from seed collected in

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

by proprietor Steve Bieberich.Davis, T. (2007). Ulmus . ''Nursery Management & Production'', August 2007 proved only moderately successful in the US National Elm Trial, averaging a survival rate of 70% overall.

Description

attains a height of 9 m and develops a neat vase shape, the crown < 7.5 m in width borne by a stout stem. The cultivar has thick, deep-green leave

turning dull yellow in the fall. Trees planted as part of the

National Elm Trial The National Elm Trial was an American volunteer effort to evaluate a range of newly developed elm cultivars as replacements for elms destroyed by Dutch elm disease. The Colorado State University College of Agricultural Sciences coordinated the tri ...

at the Bowley Plant Science Teaching Center, U C Davis, in northern California grew comparatively slowly, increasing in height by 1 m and

d.b.h. Diameter at breast height, or DBH, is a standard method of expressing the diameter of the trunk or bole of a standing tree. DBH is one of the most common dendrometric measurements. Tree trunks are measured at the height of an adult's breast, ...

by 1.6 cm per annum.McPherson, G. et al. (2008). National elm trial: Initial report from Northern California. ''Western Arborist'', Fall 2009, 32–36. The tree was summarized by

Michael Dirr Michael A. Dirr, Ph.D is a horticulturist and a professor of horticulture at the University of Georgia. He is an expert on woody plants. Education and experience Dirr earned a Bachelors in Science degree in Plant Physiology and a Masters in Science ...

, Professor of Horticulture at the University of Georgia as 'impressive

Pests and diseases

is resistant to Dutch elm disease and

Elm Yellows Elm yellows is a plant disease of elm trees that is spread by leafhoppers or by root grafts."Elm Yellows." Elmcare.Com. 19 Mar. 2008 . Elm yellows, also known as elm phloem necrosis, is very aggressive, with no known cure. Elm yellows occurs in the ...

( Phloem necrosis). Foliage of trees under assessment at the aforementioned National elm trial site at U C Davis suffered minimal damage caused by the elm leaf beetle '' Xanthogaleruca luteola'', whilst damage caused by Japanese Beetle in trials at the University of Kentucky was found to be slight, owing to the dense pubescence on the underside of the leaves.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'', 15–16. University of Kentucky.Dirr, M. (2009). 'Future Tree Selections'. ''Western'', Spring 2009, p.8. Western Nursery & Landscape Association, St Joseph, Missour

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Cultivation

is tolerant of high pH levels and soil compaction; it is also very resistant to desiccating winds. The species does not sucker from roots. The cultivar is represented in Europe by five young grafted trees at the Noordplant nursery,

Glimmen Glimmen is a village in the northeastern Netherlands. It is located in the municipality of Groningen, about 10 kilometres from the city. It had a population of around 1,342 in 2021. The river Drentsche Aa flows past the village, nearby the ''Huis ...

, The Netherlands; it is not known to have been introduced to Australasia.

Accessions

North America

* University of Idaho Arboretum, US. Acc. no. 2006033

Nurseries

;North America *J. Frank Schmidt & Son Co

Boring, Oregon, Boring, Oregon, US.

Synonymy

*''Ulmus propinqua'' C. K. Schneid. 'JFS-Bieberich' =

Etymology

Named 'JFS' for the J. Frank Schmidt nursery, Oregon, and 'Bieberich' for the proprietor of the Sunshine Nursery in Oklahoma.

References

External links

*http://treehealth.agsci.colostate.edu/research/nationalelmtrial/NationalElmTrial.htm {{DEFAULTSORT:Ulmus davidiana var. japonica 'JFS-Bieberich' Emerald Sunshine Japanese elm cultivar Ulmus articles missing images Ulmus