Moles breed in late winter or spring and have a gestation period of about four to six weeks. May. Young moles are born hairless and helpless, but growth and development occur rapidly. About four weeks after birth, the moles leave the nest and fend for themselves. Moles in the natural environment cause little damage. They are seldom noticed until their tunneling activity becomes apparent in lawns, gardens, golf courses, pastures, or other grass and turf areas.
Moles often are more of a nuisance than a financial liability.
The ridges of their tunnels make lawn mowing difficult. Moles rarely eat flower bulbs, ornamentals or other vegetative material while tunneling, but plants may be physically disturbed as moles tunnel in search of animal organisms in the soil. Mole activity may indirectly damage vegetation, but their feeding on insects and other soil organisms is beneficial. They may sometimes damage plants by exposing roots to drying. Shrews and meadow voles frequently use mole tunnels as runways and travel lanes.