Okay, folks, thanks again for all the advice. I dug up the damaged
hosta and put it in a pot. Found no sign of cutworms, slugs or anything,
and there was no more nibbling on it.
Since nothing else in that bed was touched, I figure that particular plant
just needs a new neighborhood. It's putting up another growth beside the
original one. I got these plants last year in four inch pots. One is
a dwarf little thing and the other two that are up have grown like Topsy.
So we'll see what happens. Thanks again.