Newest technology featuring Dimension Crabgrass Control herbicide. Can be applied effectively up to 4 weeks later than other crabgrass preventers. Controls crabgrass before and after it germinates. Provides 20% slow-release nitrogen. Provides the nutrients needed for a beautiful green, thick lawn. Environmentally-friendly with no phosphorous. Clear nonstaining formula. Delay seeding for 4 months after applying. Active ingredients: Dithioopyr,3,5-pyridinedicarbothioic acid, 2(difluoromethyl)-4(2-methylpropyl)-6(trifluoromethyl)-S,S-dimethyl ester 0.103%.