Moles can be a problem for gardens and lawns, as they dig tunnels underground in search of food. Several methods can help protect your garden from moles. One is to use special ultrasonic repellents, which make sounds that are unpleasant to moles and can scare them away from your property. Another method is to install metal barriers around your garden or lawn. Moles cannot dig through metal barriers, and this can help prevent them from entering. You can also use mole traps or specialty mole traps to catch moles and relocate them elsewhere. However, it is important to keep in mind that when controlling moles, you need to be careful not to harm the environment.