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Ulmus ' New Horizon' is an American hybrid cultivar raised by the Wisconsin Alumni Research Foundation (WARF), from a crossing of the Japanese Elm clone W43-8 = 'Reseda' (female parent) with Siberian Elm clone W426 grown from seed collected from a street tree at Yankton, South Dakota. [1] As selection 'W917' it is a sibling of 'Rebona ...
Ulmus minor Mill., the field elm, is by far the most polymorphic of the European species, although its taxonomy remains a matter of contention.Its natural range is predominantly south European, extending to Asia Minor and Iran; its northern outposts are the Baltic islands of Öland and Gotland, [2] although it may have been introduced by humans.
A leaf miner is any one of numerous species of insects in which the larval stage lives in, and eats, the leaf tissue of plants. The vast majority of leaf-mining insects are moths (Lepidoptera), sawflies (Symphyta, the mother clade of wasps), and flies (Diptera). Some beetles also exhibit this behavior. Like woodboring beetles, leaf miners are ...
The original Camperdown Elm, replanted near the location of its discovery c.1840 in Camperdown Park, Dundee; image taken in 1989. The Wych Elm cultivar Ulmus glabra 'Camperdownii', commonly known as the Camperdown Elm, was discovered about 1835–1840 (often mis-stated as '1640') as a young contorted elm (a sport) growing in the forest at Camperdown House, in Dundee, Scotland, by the Earl of ...
Ulmus ' Patriot' [2] is a hybrid cultivar raised by the United States National Arboretum in 1980. Derived from a crossing of the American hybrid 'Urban' (female parent) with the Wilson's Elm (now treated as Japanese Elm U. davidiana var. japonica) cultivar 'Prospector', 'Patriot' was released to commerce, free of patent restrictions, in 1993 ...
Agromyza. Species: A. aristata. Binomial name. Agromyza aristata. Malloch, 1915. Synonyms [1] Agromyza ulmi Frost, 1924. Agromyza aristata, the elm agromyzid leafminer, is a species of leaf miner fly in the family Agromyzidae. [1][2][3] It is widespread throughout eastern North America, creating leaf mines in Ulmus americana.
The American elm cultivar Ulmus americana ' New Harmony' was raised by the Maryland Agricultural Research Service and released by the United States National Arboretum in 1995, along with 'Valley Forge'. 'New Harmony' proved the most successful U. americana cultivar in the US National Elm Trial, averaging a survival rate of 85.5% overall.
Ulmus sukaczevii Andronov. Ulmus glabra Hudson, the wych elm or Scots elm, has the widest range of the European elm species, from Ireland eastwards to the Ural Mountains, and from the Arctic Circle south to the mountains of the Peloponnese and Sicily, where the species reaches its southern limit in Europe; [2] it is also found in Iran.