Do Cockroaches Hide In Wood?

Do cockroaches hide in wood? Cockroaches like areas with wood and crevices. According to Stoy Hedges, an entomologist and Manager of Technical Services at Terminix International, "Cockroaches prefer wood,...

According to Stoy Hedges, an entomologist and Manager of Technical Services at Terminix International, "Cockroaches prefer wood, but they go into natural crevices or cracks in wood. For example, some days you find large cockroaches in the most common places like tree holes. They don't damage wood, but they will take advantage of a cabinet that invariably cracks. Cockroaches like to hide there."

The Auburn University Entomology department has a website about Smoky Brown cockroaches at In regards to where they like to hide, "Cockroaches are nocturnal and need a place to hide during the day. Many hiding places near homes like sheds, wood piles, and other storage piles (bricks, lumber, etc.) should be moved as far away from the house as possible. If they are not very important to you and they harbor lots of cockroaches, you may wish to dispose of them completely. Alternatively, wood could be stacked on frame, keeping the wood off the ground and making the wood pile drier and less suitable to smokybrown cockroaches."

Some harborages like tree holes and voids in retaining walls cannot be easily moved or disposed of. In these cases the voids must be identified and cockroaches denied access to them. By sealing entry ways with cement, plastic fiber, or other material, the cockroaches will be forced to go elsewhere for a place to live."

The University of Minnesota Extension Service website at, has specific information on a particular cockroach. "The Pennsylvania wood cockroach lives in wooded areas in rotting logs and under loose bark. It can accidentally invade homes, cabins, cottages and other buildings in or near wooded areas. Because of its association with wood, a Pennsylvania wood cockroach can be brought indoors on firewood. Manage [them] by reducing their breeding places. Remove decayed and fallen logs within a few hundred feet of a building. Physically remove an occasional Pennsylvania wood cockroach that you find indoors. If larger numbers are entering the home, you may wish to treat the exterior of the building, particularly around doors and windows, with a residual insecticide."

The Texas Agricultural Extension Service website at 1458.html recommends the following to keep cockroaches out of your home. "Discourage cockroaches from entering the home by sealing any cracks of 1/8 inch or more in the foundation and exterior walls. Check the seal or caulking around air conditioning units, windows, doors, pipes or other openings into the home. Inside the home, eliminate all possible hiding areas and food sources. Repair cracks and holes in floors, walls and ceilings. Seal openings around plumbing fixtures, furnace flues, electrical outlets, window sills and walls, and along baseboards and ceiling moldings. Leaky water faucets and pipes should be repaired. Thresholds on doors should be as tight as possible and cracks in porches and stoops should be sealed."

To eliminate hiding places, the Texas Agricultural Extension Service offers this advice, "Paper, cardboard, lumber, firewood and other debris next to the home provide excellent refuge for several cockroach species. Keep yard trash and stacks of firewood away from the home or garage to minimize the chance of cockroach invasion."

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