The Anderson’s 5-5-25 Fertilizer with Barricade Herbicide is a 2 in1 formula that helps protect lawn while feeding the grass to promote stronger roots and turf. It contains Prodiamine as its active ingredient which provides effective, pre-emergent control of unwanted broadleaf and grassy weeds in established turfgrasses. It offers residual control of a wide variety of susceptible weeds and it works by preventing germination of weed seeds and stop them from developing. It is most effective when stimulated by at least 0.5 in. of irrigation or rainfall, with shallow addition before germination and within 14 days after application. It also feeds just the right amount of essential nutrients at 5-5-25 formulation to achieve a healthier lawn. This granular formula comes in 50 lb. bag.