Insecticides are used to treat for many kinds of insects from ants to grubs. A granular or liquid form of insecticide is placed on the lawn, depending on the season and condition of your lawn. This process helps to keep moles and skunks from destroying the turf. We can also treat for moles that have made tunnels in your lawns and landscapes. Ants can also be a nuisance when they make their nests. This can create bare spots in the lawn.