You should be OK then, at least for a few years. The beetles were first detected in the United States in 2002 in Michigan, likely arriving in wooden shipping pallets or crates. Theyâ€™re now present in 24 states, so they've spread pretty widely in just over a decade. Wiki says: It is invasive in North America where it has a core population in Michigan and surrounding states and provinces. Populations are more scattered outside the core area, and the edges of its known distribution range north to the upper peninsula of Michigan, south to northern Louisiana, west to Colorado, and east to Massachusetts. ,,, Green ash and the black ash trees are preferred by EAB. White ash is also killed rapidly, but usually only after all green and black ash trees are eliminated. Blue ash displays some resistance to the emerald ash borer by forming callous tissue around EAB galleries, but are eventually killed.
So your white ash seems like a good choice.
Someone else want to chime in on the original question about growing it from suckers?