The eastern mole, commonly found in the midwest, weighs 3 to 5 ounces and is 4 to 6 inches long. Moles will spend the majority of their life underground. Because of this, few people have ever seen one.
The eastern mole is a native species and a natural part of the local environment although sometimes can be a nuisance. Moles will form burrows while searching for food, which causes unsightly mounds in the grass turf. They have a large appetite, and can consume up to 100% of its body weight each day. They will feed primarily on earthworms, grubs, and adult insects. Only occasionally do they eat plant materials. The availability of their food source determines how much searching they will do and therefore how many unsightly tunnels they will make.
Prevention and Damage Control: Trapping is the most practical and effective method to control moles. The harpoon-type trap is the most commonly used. The best time to trap is in the spring and fall when they are feeding near the soil surface. When trapping, be sure the tunnels are being used. You can check by stepping down on an area along the tunnel and see if it comes back up the next day. It is often suggested that if you eliminate grubs from an area you will get rid of moles. However, grubs make up only a portion of the mole’s diet. You must have repeated insect applications to achieve removing the food population entirely. This is not an environmentally-sound practice.
Please speak to your lawn specialist for additional information.