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.
Digging dogs, uneven soil settling, poorly done grading and roots can cause depressions and holes in a lawn. Removing trees or shrubs from the area also will create a hole. The hole requires filling with soil for the area to be level with the remainder of the lawn. Leaving the hole open will not harm the lawn and grass will grow to cover it, but the area can be dangerous. Children or others walking across the area can trip on an uncovered hole and injure themselves.