Dutch Elm Disease

January 27th, 2023

Dutch elm disease (DED) has affected the lives of over a million Elm trees in the United States. It is caused by the Fungi Ophiostoma ulmi and Ophiostoma Novo-ulmi which grows on the bark of these elms. This fungus is known to be transferred into elm trees by European bark beetles. These beetles are able to transfer the fungi through the bark, roots, and even branches of other elm trees. This fungus will then slowly start diminishing the looks and structure of the elm. It can be identified by leaves wilting, turning brown or yellow, and fungus growing on the bark of the tree.

Trees that are infected by DED do not have much time to live afterward. Elm Trees that are infected by the fungus usually die within two years of being infected. Stopping the spread of other infections is the best preventative measure. Once an infected elm tree is identified a certified Arborist should be contacted and hired to remove it immediately. This however does not save the trees’ life but it is important to save the lives of others. This does not exclude Stumps that have not been completely removed. This also brings up concerns related to the next preventative measure.

The other, equally important preventative measure is to make sure that you are using proper precautions when disposing of elm trees. If you have any known elm wood on your property such as stumps, branches, and logs it should be removed correctly and safely. It is also important to use caution when transporting elm wood as beetles can hop off and infect other elm trees. Without proper consideration, this can cause more harm to future elm lives.

By following these procedures and talking to professionals before taking any action, we can help prevent the spread of DED. The future of elm trees as a species depends on our combined effort. If you or anyone you know has infected or dead Elm trees make sure to contact a specialist immediatly.