Sanco Industries Blue Spray Marker - (8 Ounces) - Weed Spray Dye, Herbicide Dye, Fertilizer Marking Dye, Turf Mark and Blue Herbicide Marker, Organic Herbicide Marking

Blue Spray Marker is a non-toxic concentrated colorant designed to be used with herbicides, fungicides, pesticides, and fertilizers. Spray Marker indicates where application spray has been made for the most accurate coverage. The colorant will fade in time with sun and moisture. Spray Marker is not permanent and will not stain once diluted. Avoid contact with fabric. Spray Marker can be removed from skin and equipment with several washes. Directions:Add 1/2 oz.of Spray Marker to every gallon of spray mixture. The more marker you use, the darker your spray pattern.