“During the winter, cockroaches that live outside will enter hibernation. Most will sleep their way through winter, hiding under piles of woods, leaves, and mulch. Cockroaches can’t migrate during the colder months, so they need to find a warm hiding spot to survive. The most common hibernation spots are:
- Vents. Cockroaches sneak inside vents to gain access to warm homes.
- Decaying trees. Tree stumps or dying trees offer shelter from the cold, wind, and rain.
- Wood piles. American cockroaches, in particular, find refuge in piles of firewood nestling inside the cracks and gaps. They can get disturbed if the woodpiles are used throughout winter, making them a risky hiding spot.
- Walls and rafters. Cracks in walls offer access to drywall or warm insulation. They’re quiet and out of harm’s way.
- Chimneys. Not only can flying cockroaches get in through a chimney top, but they’re warm and have space.
- Kitchens. Cockroaches will hide down the back of kitchen cabinets to avoid detection. This also gives them access to food crumbs and liquids that seep through the gaps.
- Electrical appliances. You may find roaches in washing machines, cookers, microwaves, coffee machines, and more.
- Basements. Often the most humid part of the home, basements are an ideal hibernation space for cockroaches.
- Drains and pipes. Pipes and drains are full of moisture, attracting cockroaches looking for hydration.”