We have all felt like Carl Spackler at one time or another as turf grass managers. Maybe we aren't managing acres of turf as Carl was at the Brushwood Country Club in the 1980 comedy 'Caddyshack'. The small rodents burrow and tunnel throughout our lawn and landscape, eating their favorite food. Gophers are strict vegetarians, eating only plant parts.  It may be garden crops, flower bulbs and even roots of fruit trees and other landscape plants.  Moles on the other hand, go after insect larvae. Grub worms, earth worms, snails and beetles. One thing they have in common is that they tunnel through our soil, looking for food.  

Control is similar on both moles and gophers.  I like to start with attempting to repel them with a couple of products. The first is  Giant Destroyer Garlic Tubes from Atlas. These repellant tubes last for 10 - 12 months in the ground to send the damaging pests on their way. It's a biodegradable, time-release delivery system. Really all it contains is highly concentrated garlic oil. 

Carl Spackler, I'm sure would have used the  Giant Destroyer Super Gasser, also from Atlas, but a more aggressive control with cartridges that emit a deadly gas into the active tunnels. Giant Destroyer smoke bombs produce a gas when ignited and dropped into burrows that will kill moles, gophers, woodchucks, rats, skunks and ground squirrels. 

ferti-lome makes  MoleGo, a repellant which contains castor oil in either a granular applied with a spreader and watered in, or a ready to spray bottle which attaches to a garden hose. Like the garlic tubes, it repels, not kills the pests. I start repellant treatments from a small area around the house and add more repellant weekly to move the pests on their way.   

Like Carl's approach, you need to 'think like an animal and whenever possible to look like one'. We're here to provide the best remedies for the pesky varmints that mess up your lawn.