A composition is provided that includes an inventive biologically active ingredient carrier granule that adheres to the surface of plants, grasses, and weeds using a moisture-active coating, illustratively including gum Arabic, guar gum, gum karaya, gum tragacanth and locust bean gum. Upon application of the inventive granule onto a plant surface, water from precipitation, irrigation, dew, co-application with the granules from special application equipment, or guttation water from the plant itself, provides sufficient moisture for adherence of the granule to the plant surface.