Useful & Essential Links
There is a vast and continually developing literature on every aspect of elm disease, much of which is freely available online.
The purpose of this brief links section is solely to support the substantive descriptions of elm cultivars by (a) giving objective views on their adaptation potential in this country; (b) providing overviews of the breeding programmes which produced them; and (c) setting out the evidence which supports their claims to resist the disease.
In the case of trees included on this site for which resistance data have not been published, the Wikipedia link at the foot of each clone-specific page gives the most dependable guidance available.
For up todate information on disease resistant elm cultivars and where to buy please contact:
https://disease-resistant-elms.org/
For background information on the Wingham elm:
https://en.wikipedia.org/wiki/Ulmus_%27Wingham%27
https://wingham-pc.gov.uk/news/the-wingham-elm-comes-to-wingham/
For developments in Butterfly Conservation and therefore the re establishment of elm please see:
https://www.wildsheffield.com/elm-initiative/
https://butterfly-conservation.org/
http://www.nesstsheffield.org/elms-and-hairstreaks/
hantsiow-butterflies.org.uk
Butterfly Conservation trials report 2019 – Disease-resistant elms
Butterfly Conservation trials report 2016 – Disease-resistant elms
Butterfly Conservation trials report 2014 – Disease-resistant elms
Planting of Disease-resistant Elm Cultivars for Lepidoptera and the Biosecurity Implications
(b) Breeding and testing programmes
Overview of the main breeding programmes worldwide, by Lorenzo Mittempergher and Alberto Santini
(c) Breeders’ descriptions and resistance data for individual clones
Morfeo
General description of the clone; includes inoculation results for Sapporo Autumn Gold. An earlier draft of this paper also provided inoculation results for FL 506 and FL 493
San Zanobi
Discussion of U. Americana DNA with emphasis on Jefferson, here identified as N3487
https://www.elmpost.org/jeh905.pdf
Inoculation results for 19 clones including Valley Forge; Jefferson coded as N3487 (NA 62001)
https://www.elmpost.org/19elms.pdf
Sapporo Autumn Gold
See Morfeo document above; includes inoculation statistics for Sapporo
Valley Forge
Inoculation results for Valley Forge
https://www.elmpost.org/19elms.pdf
Gallery with numerous photos of youthful Valley Forge