this poster is suspiciously troll like, but.......it is way too early
in the midwest for any kind of fungal diseases that would cause this
problem. It is probably one of the upright japanese cherries that is
full of eastern tent caterpilliar. It should be noted that arbitrarily
spraying things without knowing what the problem is will not be
helpful, and certainly will not cause the holes in the leaves to
suddenly fill in.

toad