I purchased an 8 ounce bottle of Quicksilver T&O herbicide on the advice of a Delaware country extension blog site telling me that this product would kill 95+ % of the Star of Bethlehem that was taking over my lawn. I've tried other products for 10 years to rid myself of this tenacious weed with limited success. I also purchased non-ionic surfactant to assist the herbicide. The Quicksilver worked a wonder. Practically all the Star of Bethlehem was killed and a host of other noxious weeds as well. My lawn looks like a golf course! Very, very few weeds. The herbicide is on the expensive side, but the results were worth it if you are as OCD as I am about having a healthy, good-looking lawn.