Answer: There are a number of disease resistant elms as discussed in the following recent publication from the University of Nebraska:
If your local retailers do not carry them, you might see if they can source and special order for you, or try mail order. Elms can be difficult to find due to production lead times with the newer introductions and lack of popularity due to long standing disease concerns. In a quick search I am not able to locate a source for you. I'm sorry I can't be more helpful.
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