On Tue, 21 Apr 2009 09:59:27 -0700 (PDT), Diane Whitney
wrote:

Thanks. My understanding was that daylilies use a fair amount of water
and so I assume that they are competing for resources. It's a very
small raspberry patch, about 8 by 8 feet, and these are not pretty
flowering daylilies because they don't have the room. Instead it's
just the foliage interspersed with the canes. I was just worried that
the herbicide would somehow migrate to the raspberries because they
are so intertwined and couldn't find an answer to that on the Roundup
web site.

Why not just cut the foliage of the day lillies to the ground? They'll
die back on their own, I would think.

Kate