Lesco Professional 50 lb. 13,000 sq. ft. Coverage 19-0-7 Crabgrass Preventer Turf Fertilizer. It contains 25% poly coated sulfur coated urea, dimension, dithiopyr, providing pre & post emergent control of crabgrass & 12 other annual grassy weeds. Fertilizer is slow release for up to 8 weeks of feeding.