One of the best methods of weed control is having a thick grass covering that prevents weeds from taking a foothold in your lawn to begin with. This will help fill in bare spots and help choke out weeds. If filling in bare areas, first loosen soil and spread peat moss, compost or topsoil. Walk over lawn to help push seeds into soil, then water. Ideally, this should be done in the spring or early summer.
Aeration removes plugs of dirt helping increase water retention and air circulation to grass roots.
Aerate your lawn in the spring or very early summer. You can rent aerators at rental stores and some garden centers, or alternatively hand aerifiers are available. Simply walking around the lawn in spiked golf shoes can provide some mild benefits. THE LAWN Lawns require about one inch of water once per week. Light, frequent sprinklings encourage shallow roots.