Now remember, moles can help soil ecosystems signifficantly by tunneling and mound-building they aerate and mix soil layers and provide drainage. Moles also eat lots of insects, larvae, and even other pests. But Moles CAN also cause problems, burrowing into your yard or garden. Make sure you know what it is you're fighting though, mole holes are circular and volcano shaped where gopher holes are fan shaped with the soil thrown in one direction. Parsons pest control carries poison, pesticides and natural solutions to solve your mole infestation!