Dutch Elm Disease is an invasive species in Maryland (MISC 2022).
Ophiostoma ulmi was introduced to the United States through imported timber in the 1920s. A second species, Ophiostoma novo-ulmi was introduced in the 1940s. Reports of either species without molecular confirmation are speculative.
Dutch Elm Disease is caused by a microscopic fungus. It infects elm trees and had a major impact on planted American Elms (Ulmus americanus). The disease is spread by bark beetles.
There are 0 records in the project database.
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