Search results
Results from the WOW.Com Content Network
Brasier. Ophiostoma novo-ulmi is a species of fungus in the family Ophiostomataceae. It is one of the key causative agents associated with Dutch Elm Disease (DED), [1] along with Ophiostoma ulmi and Ophiostoma himal-ulmi. Dutch Elm Disease was first identified in Europe during the early 1900s and by the 1940s the disease had spread throughout ...
Dutch elm disease. Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Believed to be originally native to Asia, the disease was accidentally introduced into America, Europe, and New Zealand. In these regions it has devastated native populations of elms that did not ...
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.
Hylurgopinus rufipes, known as the native elm bark beetle, is a species of elm bark beetles in the tribe Hylesinini (crenulate bark beetles). It is found in Canada and the United States. It is of particular importance as a vector of Dutch elm disease. It is brownish-red in color and its size ranges from 2.34 mm to 2.9 mm. [1]
Scolytus punctatus Müller, 1776. Scolytus scolytus var. variabilis Sokanovsky, 1958. Scolytus triarmatus Eggers, 1912. Scolytus scolytus, the larger European elm bark beetle or large elm bark beetle, is a 3.5–6 mm long bark beetle species. [4][5] It is of significant importance in Eurasia as a vector of Dutch elm disease.
A small to medium deciduous or semideciduous (rarely semi evergreen) tree, it grows to 10–18 m (33–59 ft) tall and 15–20 m (49–66 ft) wide with a slender trunk and crown. The leathery, lustrous green, single-toothed leaves are small, 2–5 cm long by 1–3 cm broad, [7] and often retained as late as December or even January in Europe ...
Ophiostoma ulmi is a species of fungus in the family Ophiostomataceae. It is one of the causative agents of Dutch elm disease. It was first described under the name Graphium ulmi, [2] and later transferred to the genus Ophiostoma. [3] Dutch elm disease originated in Europe in the early 1900s. [4] Elm trees were once an ecologically valuable ...
Ulmus americana, generally known as the American elm or, less commonly, as the white elm or water elm, [a] is a species of elm native to eastern North America. The trees can live for several hundred years. It is a very hardy species that can withstand low winter temperatures, but it is affected by Dutch elm disease.