Success or failure of a home lawn is closely tied into how well the soil and site was prepared prior to lawn establishment.
Eliminating weed problems existing on the site is an important first step. Perennial weeds, such as quackgrass or tall fescue, need to be controlled prior to lawn seeding or sodding. Weed control options include digging by hand, repeated soil tillage or using a systemic (moves within plant) nonselective herbicide, such as glyphosate. Some weeds are promoted by control measures such as tilling goosegrass, which actually promotes more germination of this weed. Organic products are becoming more popular as well. Read, understand, and follow all label directions whenever using any type of control product to be sure you will be getting the expected level of control necessary.