Lebanon ProScape Starter Fertilizer W/ Pre-EmergentThis product is used when establishing new lawns. Not only is this product a starter fertilizer to help your seed germinate, it also contains Mesotrionone which prevents crabgrass from germinating! Finally, an effective fertilizer that encourages a beautiful, new lawn while blocking out those nasty crabgrass and broadleaf weeds. This product can also be used on newly seeded lawns if there is other broadleaf weeds appearing. Expect to see the weeds