Rodents can eat and contaminate food and food containers, and they can cause damage to homes by gnawing on electrical wires and wooden structures, and wall material, and they tear up insulation in walls and ceilings for their nests. Rodents can transmit parasites, fleas, and diseases to pets and humans as well.
We highly recommend that you do NOT use traps or poisons in an attempt to control rodents yourself. You may eliminate individual rodents, but this will rarely if ever, solve a rodent problem.