How to Identify Pill Bug Infestations
Pill bugs thrive only in areas of high moisture, and tend to remain hidden under objects during the day. Around buildings they are common under mulch, compost, boards, stones, flowerpots, and other items resting on damp ground. Another frequent hiding place is behind the grass edge adjoining sidewalks and foundations.
Pill bugs may leave their natural habitats at night, and crawl about over sidewalks, patios, and foundations. Common points of entry into buildings include door thresholds, especially at the base of sliding glass doors. They often invade crawl spaces, damp basements and first floors of houses at ground level. Frequent sightings of these pests indoors usually means that there are large numbers breeding on the outside, close to the foundation. Typically however, if pill bugs enter a structure, they will often dry out and die.
How to Get Rid of Pill Bugs
There are a few main strategies to removing pill bugs from your home including minimizing moisture, removing debris, and sealing pest entry points to your home.
Since pill bugs require moisture, they do not survive indoors for more than a few days unless there are very moist or damp conditions.
Pill bugs can also be avoided by eliminating food sources such as vegetable or plant debris.
To prevent pill bugs from entering your home, seal cracks and openings in the outside foundation wall, and around the bottoms of doors and basement windows. Install tight-fitting door sweeps or thresholds at the base of all exterior entry doors, and apply caulk along the bottom outside edge and sides of door thresholds.
Insecticides are of little use in controlling these pests. Once inside, pill bugs soon die from a lack of moisture. Removal with a broom or vacuum is all that is needed. For large infestations, insecticides may help reduce inward migration of these and other pests when applied at common outdoor entry points, along the bottom of exterior doors, around crawl space entrances.