I wanted an alternative to Preen that came in bulk. I have large ornamental gardens. So I did alot of price comparison and ingredient comparison. This product is a better, broader spectrum weed abatement product. With all types, one needs to kill all the already emerged weeds. A tiny drop of glyophosphate will do this. Broadly applying the T/I will set you up for the rest of the summer. Thank you for your prompt shipping and the best online price I could find.