Drscot from Alma, Ar writes
I have used blue dyes in the past and really can't see it. Green dye would be even worse.
The yellow in the product is not meant to be a marker, it is just the color of the active ingredient. We are not sure if it is sufficient for you to see on the grass it self. Sorry we could not be of more help!
Answer last updated on: 05/29/2013