Interesting statistics, Sooby. I am glad that Bobbex gets a good control rating, that gives me more confidence in its effectiveness. I have just been going on my own experience, but it is nice to see this study.
I don't spray every two weeks with Bobbex and have still had very good control. I spray when my daylilies and hosta are coming up. Then again before the daylilies scapes begin to show, and then I spray the daylily scapes when the buds are developing and later when the bloom season starts. I do my hosta when I am doing my daylilies.
