They are used as highways leading from cavities to feeding areas and are used most during hot, dry or very cold weather when earthworms and insects move deeper into the soil. The first step in controlling moles is to actually determine if the mole is the culprit. Because moles are insectivores, they do not routinely eat garden seeds and bulbs, although they are often blamed. The real culprits are probably voles, white-footed mice or house mice. If your garden has runways in it, the moles are looking for insects and earthworms.
Moles play a beneficial role in the management of soil and control of undesirable grubs and insects.
Moles are one of nature's small mammals that have worked for a long time in moving soil around. Perhaps the mole's greatest crime is the nuisance it creates in lawns or gardens. If you have this problem, then take control measures. The most effective way to control males is trapping. The answer lies in the mole's unique biological attributes.