I have a theory about why some blooms show so much damage and others do not. It's the edge. The ruffled edges on some daylilies are not closed tightly for at least a couple of days before they open. That lets Thrips in where they can settle down and eat with impunity until the blooms fully open. Also water can get into those semi-closed edges. I don't get anywhere near as much damage on plain edged daylilies as I do ruffled/bubbled ones. Excluding the entrance gap on unopened blooms may theoretically solve the problem... At least that's my working theory.......Maryl
