When was Dutch elm disease in the US?

When was Dutch elm disease in the US?

The disease was first identified in the United States in 1930. A federal eradication campaign in the late 1930s and early '40s sharply reduced the numbers of infected elms but could not stop the disease's spread into regions wherever the very susceptible American elm (Ulmus americana) grows.

Where in the US is Dutch elm disease a pest?

Damage. Dutch elm disease has killed several thousand elms in California, mostly in the San Francisco Bay Area and around Sacramento. Millions of elms have been killed in midwestern and eastern states since 1930.

Is Dutch elm disease still a problem Minnesota?

Distribution. Dutch elm disease was first found in Minnesota during 1961 in St. Paul and can now be found throughout Minnesota.

Do we still have Dutch elm disease?

The disease is still a threat today, but fortunately, several resistant American elm and hybrid elm selections are available or being developed. Two insect vectors are responsible for transmitting DED: the native elm bark beetle (Hylurgopinus rufipes) and the European elm bark beetle (Scolytus multistriatus).

Is Dutch elm disease fungus native to North America?

Dutch elm disease is a lethal fungal disease of native North American elms. The fungi that cause Dutch elm disease entered the United States early in the 1900's on elm logs from Europe.Aug 6, 2012

How did Dutch elm disease come to North America?

Historical Significance. The first North American Dutch elm disease epidemic began when Ophiostoma ulmi was introduced in the 1920s by furniture makers who used imported European elm logs to make veneer for cabinets and tables.

Are elm trees native to North America?

Description: The American Elm is a species native to the eastern part of North America. It is a large deciduous, hermaphroditic tree that produces small perfect flowers in early spring.Apr 13, 2021

Do American elms get Dutch elm disease?

Dutch elm disease (DED) affects American elms (Ulmus americana), red elms (U. rubra) and rock elms (U. thomasii) throughout Minnesota. DED is one of the most widely-known tree diseases, worldwide.

Are American elms resistant to Dutch elm disease?

Dutch elm disease (DED) has had a devastating impact on the urban landscape of North America. The American elm (Ulmus americana) was at one time the most extensively planted shade tree in the United States. Unfortunately, all elm species native to North America, especially Ameri- can elm, are susceptible to DED.

Can all elm trees get Dutch elm disease?

The American elm, Ulmus americana, is extremely susceptible and the disease has killed hundreds of thousands of elms across the U.S. All native elms are susceptible, as are European elms, but the Asiatic elms, U. parvifolia (Lace bark elm) and U. pumila (Siberian elm) are highly resistant to the disease.

What kills American elms?

It is caused by the fungi Ophiostoma novo-ulmi and O. ulmi and is vectored (carried) by bark beetles. The disease is referred to as "Dutch" Elm Disease because it was first described in Holland in 1921. The pathogen originated in the orient.