Dan from Louisville, Ky writes
I used plain dish washing liquid as a surfactant for the "Roundup" I use on my gravel driveway. Could I simply use dish washing liquid with the Speed Zone as well? If not, what product that you sell would you suggest?
SpeedZone Lawn Weed Killer Concentrate does not contain a surfactant and the manufacturer does not state that one is required for use with it.
Answer last updated on: 05/03/2018