If you notice piles of dirt in your otherwise impeccable lawn, you may have a mole problem. These subterranean animals forge tunnels throughout your yard, creating unsightly dirt hills and potentially killing plants and shrubs as they damage the plants' roots. You have several options for getting rid of the lawn moles, from simply repelling to lethal poisoning that ends the problem once and for all.
Find an active mole tunnel, as not all the mole hills in your lawn may be used by the animal. Stomp down on a mole hill several feet within its the entrance so that the underground tunnel collapses.
Check the area in 1 to 2 days. If the ground is pushed back up, the mole has repaired the tunnel and it is likely in active use.
Sprinkle mole repellent granules--available from some specialty garden shops and landscaping stores--inside the tunnel. These typically work by irritating the mole's sensitive sense of smell and touch and may encourage it to move out of your lawn.
Poison the mole with bromethalin-laced bait if repelling it doesn't work. Mole poison baits come in various shapes and forms, from worm-shaped pieces to granular bits that are intended for mixture with dried grain. Apply the poison according to its label's guidelines as toxicity varies widely by product. Typically, the poison works best when inserted several feet within an active mole tunnel.
Continue to check for mole activity after throwing poisoned bait into a mole tunnel. If the poisoned bait disappears, add more bait until activity ceases. Use a spade to fill in the mole hill once activity ceases, signifying that the mole is dead.