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.
For the first time we are having a problem with chipmunk's borrowing holes all over our yard. They have dug little holes all over the place. They dig right through my mulch and weed barrier cloth that we paid to have make the place look more manicured!DnBAMA (7/Alabama). You can cover the holes, fill them with rocks or whatever but they WILL dig out somewhere else. They are cute varments but so destructive to lawns. I have holes in my lawn from them but get fed up with it every few weeks & have to rig the 'chipper dipper' to eradicate them.