Marksman Blue is a hyper-concentrated water soluble spray colorant specifically formulated for use with herbicides, fungicides, insecticides, wetting agents, liquid fertilizers and growth retardants. Marksman Blue saves you time and money by helping to eliminate overspray and ensuring accurate and uniform applications. USAGE INSTRUCTIONS: Marksman Blue can be tank mixed with a wide range of spray solutions and liquid treatments. A typical spray application requires only 6 to 10 ounces of Marksman Blue per 100 gallons of spray solution. However, additional Marksman Blue can be added to achieve a deeper color if required.