Opossums frequently create messy nests in garages, sheds, and attics, where they often tear up pipes to gain entry and introduce food that can develop mold. They may also build dens on roofs and spread garbage around.

In attics, they will chew on air vents, wires, and insulation. This creates a fire hazard.

Opossums’ droppings will produce a strong, foul odor and spread diseases and parasites. They can also leave urine stains on ceilings and all over the attic. Opossums can also damage gardens by digging up food and eating fruits, as well as damaging plants. They have been known to kill poultry and may enter houses to consume pet food.

Because opossums don’t live long, many of them may die in a nest inside the home, which can cause bad smells and attract bacteria and flies.