: "The search for DED resistant elms has been a slow process, complicated by a number of factors. Nevertheless, much research has been completed and DED resistant elm trees have been developed. It is a good idea to keep in mind that all trees are subject to problems of one sort or another. Other diseases, insects, and environmental injury may also create problems in tree health. Although resistant elms have been developed, it is important to remember that they are not immune. However, resistance combined with proper care ensures the best chance for success."