Dutch Elm Disease

Dutch Elm Disease: "Researchers have worked for years to develop elm varieties that are resistant to Dutch elm disease. These are primarily crosses between various Asiatic elms and American elms. Many of these show good resistance to DED but these hybrids do not have the impressive growth and form of the American elm.

Recently, resistant American elms have been introduced and distributed, although they have not been grown long enough to show if they remain resistant when mature. Until there is more experience with these varieties, replanting in large numbers is not recommended. However, the development of resistant trees provides a promising future means of reintroducing the American elm as a premier shade tree."