Biology and Habits

Pillbugs, sometimes called “roly-pollies”, are a land dwelling order of crustacean. Female pillbugs carry their eggs on a pouch underneath the side of their body and develop 1-3 broods per year with an average of 28 young per brood.  Their habitat consists of areas with high moisture content including under mulch, grass clippings, leaf litter, wood logs, boards, and decaying vegetation. To prevent excessive water loss, pillbugs are inactive during the day time. At night, they feed on decaying plant and organic material. Occasionally, pillbugs enter homes and buildings through gaps or under doors, however they do not survive more than a few days indoors. 

Control

When pillbugs are present indoors, it often indicates a large population in the immediate area outside. The most effective way to reduce activity is to make the environment undesirable be eliminating areas where high levels of moisture can accumulate. If necessary, applying an appropriately labeled insecticide around the perimeter of the building, around flower beds, and in basements or crawlspaces can provide adequate control.