First thing, they are not pill bugs but rather they are grub worms. But I don't think they would bother your Hosts. The Hostas look planted a little deep, to me. So maybe the crown rooted? can you dig up one to see what's going on underneath?
Life is short, Break the rules, Forgive quickly, Kiss slowly, Love Truly, Laugh
uncontrollably, And never regret anything that made you Smile.