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Dutch Elm Disease

In the days before Dutch Elm Disease (DED), the American Elm was considered by many to be the quintessential urban tree. After all, no other tree could tolerate urban stresses such as soil compaction, pollution, and limited rooting space as well as this native giant. Unfortunately, the introduction of Elm Bark Beetles from Europe and Asia dealt a devastating blow to the vastly over-planted American Elm. Streets once lined with majestic 100 foot trees quickly became devoid of vegetation.

The emotional loss of countless elms in a relatively short period of time resulted in a virtual boycott of the species. After all, who wanted to plant trees that were so susceptible to disease. Arborists have since searched for a comparable tree species capable of tolerating urban conditions as well as the American Elm, but to no avail.

Fortunately, years of research have led to breakthroughs in the fight against DED. Fungicides are now available which can save elm trees in the early stages of the disease. The treatments can be costly, but are a viable option for homeowners who don't want to lose a particularly large or valuable tree. Showing even more promise are three DED-tolerant cultivars of American Elm that have recently been reintroduced to the nursery trade. "Valley Forge", "Prinston", and "Harmony" cultivars are now known to be highly tolerant to DED.

The American Elm's ability to tolerate urban conditions has always been a unique and admirable quality. Continued advancements in the field of arboriculture provide promise that this beautiful tree will one day regain its rightful popularity.

Please remember that timely, removal of Dutch Elm Diseased trees is the most important factor in limiting spread of the disease. If you notice sudden dieback in the crown of an elm tree, please contact the Village Forester at 847-883-8600.