Oliger Seed 16-0-9 Fertilizer with Surge Herbicide is a proven combination of sulfentrazone, 2,4-D, MCPP, and dicamba designed to provide broad-spectrum, post-emergent weed control. This effective mix targets dandelions and other broadleaf weeds, while sulfentrazone control of clovers and yellow nutsedge. Dicamba enhances the formula by tackling tough-to-control weeds such as thistle and black medic. The fertilizer also contains 25% Poly-S slow release nitrogen, ensuring extended feeding for your lawn. I for use from May through September, each 40 lb. bag covers up to 10,000 square feet, making it a practical choice for maintaining a healthy, weed- lawn.