Moles are small mammals that live in underground burrows and dig an extensive network of tunnels in search of food. They feed on grubs that destroy the lawn, along with earthworms that are beneficial. Their tunnels, when they come up towards the surface of the soil, become mounds of dirt that look unsightly and destroy lawn grass. Although some people prefer to keep moles as pets, getting rid of them is important to prevent your lawn from resembling small piles of dirt that indicate tunnels where moles may live.
Wear heavy boots and stomp on all visible mounds of dirt in your lawn so the soil falls back into the tunnels to seal it. Check the lawn the next morning to determine where the mounds are formed again, as these small mammals only cave-in tunnels they use, which gives you an idea of where in your lawn these small pests are most active.
Determine the size of the trap, and dig a hole around a mound of dirt large enough to accommodate it. Tamp the base to level it so the trigger-plate rests on it evenly.
Lower the mole trap into the hole, resting the trigger plate on the flat base carefully. Add soil around the trap up to the fill-line. This hides the trap from the mole that begins digging a tunnel around the cave-in and accidentally steps on the trigger plate to activate the trap.
Wear gloves and remove the dead mole from the trap carefully if it's caught. Set the trap near another cave-in to kill another mole in your yard.
Flood the moles as an alternative to killing them. Dig a hole around a cave-in, insert a garden hose into it and let it run at the highest setting for 20 minutes to drive out these pests.