Have you ever sprayed an herbicide to control weeds on a turf area, only then to see them continuing to grow a few days later? How about seeing light and dark-green streaks after a liquid-fertilizer treatment? Sanco’s Laser Spray pattern indicator assists in depositing consistent and even treatment by changing the color of the herbicide. Using Laser Spray pattern indicator, you’ll be able see areas that are unmarked or marked with a lighter color.