@TomThumb
Since you watch your cat in the yard did you see him eat daylily leaves the last time he was in your yard before he showed the symptoms?
Did you examine any daylily leaves for signs of being eaten?
Are there any other plants or trees growing in your yard other than daylilies?
Are there any other weeds growing between your daylilies other than grass?
Are there any insects in your yard - ants, caterpillars, worms, bees, wasps, or frogs, mice, birds, shrews, etc.?
