Hi, Robert.
to ATP!
I detest weeding around my daylilies, too. To keep my sanity (and my daylilies!), I have mulch on hand before I start to weed a patch of it. Pull weeds a bit at a time and cover the areas in between plants with a heavy layer of mulch, say 3 or 4" worth. Each time you visit your garden, pull any weeds that manage to show up around your daylily stems; usually there will only be a few at a time.
The nature of daylily growth would make the application of any systemic poison more time-consuming than it would be to just go ahead and pull the weeds, and immediately afterward apply mulch. Keep them mulched as well as you can and you'll find that the weeding chores will soon become much more manageable.
There's also a forum for daylilies if you'd like to see what methods other daylily growers use for weed control.
http://garden.org/forums/view/... .
