European Hornet
Vespa crabro
Stinging InsectsLarge hornet, 3/4 to 1-1/2 inches long, with brown and yellow coloring. Only true hornet in North America. Builds paper nests in hollow trees and wall voids. Active at night. Less aggressive than yellow jackets.
Control Methods
Recommended methods for controlling this pest
| Method | Type | Effectiveness | Requirements |
|---|---|---|---|
| Wasp and Hornet Nest Treatment | Chemical | None |
Common Harborage Locations
Where to find this pest during inspections
| Location | Why Found There | Priority |
|---|---|---|
| Soffit Vents | Direct entry to attic, often screened inadequately, warmth escapes through vents. | Medium |
| Tree Holes & Hollow Trees | Protected nesting sites for bees and hornets, shelter from weather, natural enclosed space ideal for colony establishment. | Medium |
| Wall Voids & Structural Cavities | Yellow jackets and hornets build paper nests in protected voids. Warm, dry, protected from weather. Often accessed through small gaps in siding or vents. | 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 This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.