Pillbug
Armadillidium vulgare
Occasional InvadersSimilar to sowbug but rolls into tight ball when disturbed. Gray oval with seven pairs of legs. Also called roly-poly. Crustacean that requires moisture. Feeds on decaying organic matter. Harmless.
Control Methods
Recommended methods for controlling this pest
| Method | Type | Effectiveness | Requirements |
|---|---|---|---|
| Door Sweep Installation | Mechanical | None | |
| Perimeter Insecticide Spray | Chemical | Required | |
| Granular Perimeter Barrier | Chemical | Required | |
| Foundation Perimeter Treatment | Chemical | Required | |
| Habitat Modification for Moisture Pests | Cultural | None |
Common Harborage Locations
Where to find this pest during inspections
| Location | Why Found There | Priority |
|---|---|---|
| Basements | High humidity, cooler temperatures, stored items, potential for flooding, entry point from outside. | Critical |
| Crawl Spaces | Direct earth contact, very high humidity, minimal disturbance, abundant hiding spots, poor ventilation. | Critical |
| Mulch & Landscape Beds | Moisture retention, organic material, cover from predators, bridge to structure. | High |
| Dense Vegetation Against Building | Moisture retention, bridge to structure, protection from predators, food sources. | Medium |
| Compost Bins | Food source, warmth from decomposition, moisture, organic material. | Medium |
| Leaf Piles | Moisture retention, protection from weather, food source through decomposition. | Medium |
| Door Thresholds | Common entry point, gaps under doors, light attraction, temperature differential. | High |
Important Disclaimer: The information provided in this knowledge base is for educational and reference purposes only. Pest management professionals should always consult current product labels, Safety Data Sheets (SDS), manufacturer instructions, and applicable local, state, and federal regulations as the definitive source of truth. Product formulations, application methods, safety requirements, and regulations may change over time. This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.