Mounds of dirt, holes and trails that run throughout your lawn along hedges, sidewalks and walls may be caused by rodents called moles. Moles are 6”–8” (15–20 cm) in length with a thin tail. The mole’s eyes are concealed by hair. They have pink feet that are able to dig rapidly with broad, fingernail-type claws.
During early spring and autumn, moles build an extensive network of both deep and surface-level tunnels. The tunnels act like the mole’s living quarters. Deep tunnels may be from 6”–24” below the surface. The mole, creating molehills, may push up these tunnels. Shallow tunnels are often long winding pathways throughout the surface of the lawn. These pathways are used during damp weather when much of the mole’s food is near the surface. Moles are active year-round and can tunnel underground at a rate of 12–15 feet per hour with surface tunnels being built at 1 foot per minute.
A Mole’s Biology
Mole populations usually remain stable throughout the season. Moles produce their offspring in the spring, averaging three to four in a litter. The young remain with their mother for one month and then begin tunneling. The young grow to adult size in four to eight weeks. Moles lead an extremely active life, eating their weight in food daily. They feed on insects, grubs and slugs found during tunneling, but their main source of food is the earthworm.
Controlling Moles in Your Lawn
Trapping or baiting them are the best two methods of controlling moles. Please call DeVries Landscape for tips or assistance in getting rid of moles in your lawn.