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- Organizing and summarizing search results for youDutch elm disease (DED) is a fungal disease that affects elm trees.Some facts about DED are:
- It is caused by two closely related fungi, Ophiostoma ulmi or O. novo-ulmi.
- It was first described in Holland in 1920 and introduced to the U.S. in the 1930’s.
- It is spread by elm bark beetles or via root grafts in adjacent trees.
- It causes wilt and death in all species of elm native to Minnesota and other regions.
- Fungicide injections can protect elm trees from infection by bark beetles.
2 Sources Dutch Elm Disease [fact sheet] - Extension
The first symptom to appear is wilting or “flagging” of the leaves. The wilted leaves curl, turn yellow, then brown, and often drop prematurely. Flagging is usually seen in the spring or summer, and most commonly at the ends of branches. Dead branches may appear on only a portion of the tree. The tree may then die … See more
The European elm bark beetles overwinter as adults or larvae in their tunnels. The adults emerge in the spring and begin to feed. They can be found … See more
Cultural Practices - Destroy dead elm material (logs, dead trees, etc.); if logs are stored, remove bark. This must be done before the adult beetles emerge in the … See more
Dutch elm disease - Wikipedia
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 have resistance to the disease. The name "Dutch elm disease" refers t…
Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 8 mins
Dutch elm disease | UMN Extension
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Dutch elm disease | Description, History, Symptoms, …
Dutch elm disease, widespread fungoid killer of elms (Ulmus species) and certain other trees, first described in the Netherlands. Spread by bark beetles , the …
Dutch Elm Disease | National Invasive Species …
In the eastern United States, elm (especially American elm) and ash trees are in trouble because of two threats: the emerald ash borer (an insect that attacks ash) and Dutch elm disease (caused by a fungus that sickens elms).
Dutch Elm Disease and Its Control - Oklahoma State …
Dutch elm disease (DED) is one of the most destructive shade tree diseases in North America and has become one of the most widely known and destructive tree diseases in the world. All species of elms native to North America are …
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Dutch Elm Disease - NC State Extension Publications
Feb 4, 2025 · Dutch elm disease (DED) is a fungal disease that affects the vascular system of elm trees and causes crown dieback and tree mortality.
Dutch Elm Disease - Center for Agriculture, Food, and …
Dutch elm disease (DED) is a lethal vascular wilt disease of American elm (Ulmus americana) that is caused by Ophiostoma novo-ulmi and O. ulmi. While once widespread in the region, O. ulmi has been Both O. novo-ulmi and O. ulmi are …
Dutch Elm Disease | Ohioline - Ohio State University
Dutch elm disease (DED) is one of the most destructive urban forest diseases. This disease affects native American elm species, such as American (Ulmus americana), slippery (red) (U. …
Dutch elm disease - RHS Gardening
Dutch elm disease (DED) is a serious disease of elms caused by the fungus Ophiostoma novo-ulmi. It is a type of disease known as a vascular wilt because the fungus blocks the vascular …
Dutch elm disease is caused by two closely related fungi, Ophiostoma ulmi or O. novo-ulmi. The fungi are spread from tree to tree by elm bark beetles or via root grafts in adjacent trees. The …
Dutch Elm Disease (Ophiostoma novo-ulmi) - Woodland Trust
What is Dutch elm disease? Dutch elm disease is caused by the fungus Ophiostoma novo-ulmi which is spread by elm bark beetles. It got its name from the team of Dutch pathologists who …
Dutch elm disease (DED) is the most destructive vascular disease of elm and the leading cause of elm mortality. All elm species native to North America are susceptible to the disease.
Dutch Elm Disease - Yard and Garden
Dutch elm disease is caused by the fungus Ophiostoma novo-ulmi, which invades the water-conducting vessels of elms. The leaves of trees wilt, turn yellow or brown, and then fall. …
Dutch Elm Disease - Wisconsin Horticulture
Dutch elm disease is a lethal fungal disease of native elms. This factsheet describes symptoms, spread and management of this serious disease.
Dutch elm disease: Symptoms and Diagnosis - Forest Research
Dutch elm disease is one of the world’s most serious tree diseases. It is caused by the fungus Ophiostoma novo-ulmi, which invades and blocks the water-conducting systems of trees. This...
Dutch elm disease (DED) is caused by two species of the fungus Ophiostoma, Ophiostoma ulmi and Ophiostoma novo-ulmi. The fungus is transmitted from infected trees to healthy trees by at …
Dutch elm disease (Ophiostoma novo-ulmi) - Forest Research
Dutch elm disease is a highly destructive disease of several species of elm (trees in the Ulmus genus). It is caused by two related fungi, Ophiostoma novo-ulmi and Ophiostoma ulmi, although...
What is Dutch elm disease? Dutch elm disease is a lethal fungal (DED) disease of native North American elms. The fungi that cause DED entered the United States early in the 1900’s on elm …
Dutch Elm Disease | Plant Disease Diagnostics Clinic
Jul 23, 2015 · What is Dutch elm disease? Dutch elm disease (DED) is a lethal fungal disease of native North American elms. The fungi that cause DED entered the United States early in the …
Invasive Forest Pathogens - US Forest Service
Invasive forest diseases such as Sudden Oak Death, Laurel Wilt, White Pine Blister Rust, Chestnut Blight, Dutch Elm Disease, and Butternut Canker, continue to have serious impact …
Ulmus × hollandica 'Major' - Wikipedia
In areas unaffected by Dutch elm disease, 'Major' often attains a height of > 30 m, with a short bole and irregular, wide-spreading branches. In open-grown specimens, the canopy is less …
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