Asian Lady Beetle
Harmonia axyridis
Occasional InvadersSmall beetle, about 1/4 inch, ranging from yellow to orange to red with variable spots. Overwinters in large numbers in buildings. Beneficial predator of aphids outdoors. Can bite and stain surfaces. Non-native species.
Control Methods
Recommended methods for controlling this pest
| Method | Type | Effectiveness | Requirements |
|---|---|---|---|
| Perimeter Insecticide Spray | Chemical | Required |
Common Harborage Locations
Where to find this pest during inspections
| Location | Why Found There | Priority |
|---|---|---|
| Attics | Warmth in winter, nesting materials (insulation), minimal disturbance, entry from roof penetrations. | High |
| Window Frames | Gaps for entry, light attraction, temperature differences, collection of dead insects. | Medium |
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 This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.