Product seems to be working. Problem I had was no follow up on order. Shipping tag produced but product was on back order, by the time I check to see if order was coming and they supplied a substitute it did not arrive until after I left on vacation. Now spraying is done (many more weeds) I have to wait to water then wait to see if more weed come the next six months. Had I known about the back order would have order substitute and been able to spray before I left on vacation using less spray for the existing weeds.