Dutch Elm Disease

Scientific names: Ophiostoma ulmi (Buisman) Nannf. and Ophiostoma novo-ulmi Brasier

Common name: Dutch elm disease

Native To: Eastern Asia

Date of U.S. Introduction: First discovered in the U.S. around 1930

Images: Invasive.org and Google

Means of Introduction: Introduced accidentally on diseased logs imported from Europe

Impact: Lethal fungal disease of elm trees (particularly American elms (Ulmus americana), which are more susceptible to the disease than other elm species)

Current U.S. Distribution: Has been found throughout the entire U.S. except for the desert Southwest

• Alien Forest Pest Explorer - Pest Distribution Map: Dutch Elm Disease (Jul 2009; PDF | 950 KB)

Management Plans: Microbes

Selected Internet Resources:

• Federal Government
• State Government
• University/Academic
• International
• Organizations

Ophiostoma spp.
Integrated Taxonomic Information System.
Taxonomy

Dutch Elm Disease Update (Jun 2006)
USDA. Agricultural Research Service.
Introduction History; Impacts; Controls

Dutch elm disease Article Citation Search - AGRICOLA Database
USDA. National Agricultural Library.
Research; Special Note: NAL Catalog Search (resources)

Dutch Elm Disease caused by Ceratocystis ulmi - Insects and Diseases of Trees in the South (1989)
BugwoodWiki.
Produced by: USDA. Forest Service. Protrotection Report R8-PR16.
Identification/Description; Photographs; Controls

Pest Alert: Dutch Elm Disease (DED) and the American Elm (Jul 1999; PDF | 141 KB)
USDA. Forest Service. Northeastern Area.
Identification/Description; Photographs; Introduction History; Impacts; Controls

Dutch Elm Disease
USDA. Forest Service. Northeastern Area. Forest Health Protection.
Photographs; Impacts

How to Identify and Manage Dutch Elm Disease
USDA. Forest Service. Northeastern Area State and Private Forestry.
Identification/Description; Photographs; Illustrations; Introduction History; Life Cycle; Dispersion; Controls

Dutch Elm Disease - A Guide to Common Insects and Diseases of Forest Trees in the Northeastern United States (1979)
BugwoodWiki.
Produced by: USDA. Forest Service. Northeastern Area State and Private Forestry.
Photographs; Impacts; Life Cycle

State Government

Dutch Elm Disease: Elm Tree Protection Program (PDF | 722 KB)
City of Seattle (Washington). Seattle Transportation.
Identification/Description; Photographs; Introduction History; Dispersion; Controls

Dutch Elm Disease Factsheet
Cornell University. Plant Disease Diagnostic Clinic.
Identification/Description; Photographs; Illustrations; Introduction History; Life Cycle; Controls

Sustainable Urban Landscapes: Dutch Elm Disease and Disease-Resistant Elms (Jan 1999; PDF | 2.75 MB)
Iowa State University. University Extension.
Identification/Description; Photographs; Life Cycle; Dispersion; Controls

Problem: Dutch elm disease - Ophiostoma ulmi (Jan 2009; PDF | 145 KB)
Kansas State University. Research and Extension.
Identification/Description; Photographs; Introduction History; Life Cycle; Dispersion; Controls

Dutch elm disease (2005; PDF | 98 KB)
University of Massachusetts Extension. Landscape, Nursery, and Urban Forestry Program.
Identification/Description; Photographs; Life Cycle; Controls

History of Dutch Elm Disease in Minnesota
University of Minnesota Extension.
Photographs; Introduction History; Impacts; Distribution; Controls; Legal Aspects

Dutch Elm Disease
North Carolina State University. Plant Pathology Extension.
Identification/Description; Photographs; Introduction History; Distribution; Dispersion; Controls

Dutch Elm Disease (Jul 1996)
North Dakota State University Agriculture and University Extension.
Identification/Description; Illustrations; Dispersion; Controls

Fact Sheet: Dutch Elm Disease (PDF | 598 KB)
Ohio State University Extension.
Identification/Description; Photographs; Introduction History; Life Cycle; Distribution; Controls

Dutch Elm Disease and Its Control (PDF | 1.24 MB)
Oklahoma State University. Oklahoma Cooperative Extension Service.
Identification/Description; Photographs; Introduction History; Distribution; Dispersion; Controls

Elm: Dutch Elm Disease - Online Guide to Plant Disease Control
Oregon State University Extension.
Identification/Description; Photographs; Introduction History; Distribution; Controls

International

Dutch elm disease
Pests and Diseases Image Library (Australia).
Identification/Description; Photographs

Dutch elm disease - Insects and diseases of Canada's forests
Natural Resources Canada. Canadian Forest Service.
Taxonomy; Identification/Description; Photographs; Introduction History; Life Cycle

Ophiostoma novo-ulmi - Delivering Alien Invasive Species Inventories for Europe (Nov 2006; PDF | 174 KB)
European Commission. Sixth Framework Programme.
Taxonomy; Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Habitat; Distribution; Dispersion; Controls

Dutch elm disease in Britain
Forestry Commission (United Kindom). Forest Research.
Photographs; Introduction History; Impacts; Distribution

Ophiostoma ulmi sensu lato (fungus) - ISSG Global Invasive Species Database
World Conservation Union. Invasive Species Specialist Group.
Identification/Description; Photographs; Impacts; Life Cycle; Habitat; Dispersion; Distribution; Controls

Dutch Elm Disease
American Phytopathological Society.
Identification/Description; Photographs; Illustrations; Impacts; Life Cycle; Habitat; Controls

Dutch Elm Disease
Eastern Forest Environmental Threat Assessment Center.
Photographs; Introduction History; Impacts; Distribution

Dutch elm disease
Invasive.org.
Photographs

Dutch Elm Disease - Ophiostoma ulmi (Buis.) Narruf. and O. novo-ulmi Brasier J.C. Fisch
Nature Conservancy. Global Invasive Species Initiative.
Photographs; Introduction History; Impacts; Distribution; Controls