Combine an IPM program with a few of these DIY deterrents and repellents, and you can come up with a successful comprehensive plan to get rid of mice naturally. How Poison Works: Most rodenticides on the market today are anti-coagulants.
Rats are rodents that can spread disease, contaminate food and chew up property. Rats burrow in the ground, forming tunnels with one main opening and one or two exits. The 2- to 3-inch wide entrance hole is usually found under a covering like a low plant, mulch or debris. Before closing up burrows, the rats must be eliminated or they will just re-open the holes.
While moles can be beneficial to the soil because they cultivate and aerate the dirt while tunneling for food, homeowners object to the unsightly molehills and tunnels that can destroy a beautiful lawn. According to the National Mole Hunters Association, moles can dig 100 feet of tunnels in a single day.