12-20 mm – Black and white
Insect – High risk
Eastern wasp
The Eastern wasp (Dolichovespula maculata), also known as the bald-faced hornet, can be recognized by its white markings on a black background (no yellow). It builds large aerial nests and is very aggressive when defending its nest.
§1Distinctive features
How to identify it
A large wasp, 12 to 20 mm long, black with distinctive white markings on the face and abdomen. Its white papier-mâché aerial nest can reach 50 cm in height.
§2Habitat
Where to find it
It nests in trees, shrubs, hedges and sometimes under eaves. The characteristic white nest is suspended in the vegetation.
§3Reproduction
Lifecycle
Without intervention, an infestation can double in size in just a few weeks.
§4What to look out for
Signs of infestation
- Large egg-shaped white nest suspended in the trees
- Black and white wasps very active around the nest
- Marked aggression when approaching the nest
- Present in gardens and forest edges
§5Why act fast
Risks
- Very painful, multiple and repeated stings
- Severe allergic reactions may occur
- One of the most aggressive wasps in North America
§6Prevention
How to avoid it
- Keep an eye on trees and shrubs in spring
- Never approach a nest without protection
- Call in a professional as soon as you discover a nest
- Avoid wooded areas where nests have been observed
§7Pro method
How MW works
Inspection
Home location and assessment.
Preparation
Customized plan – pre-intervention measurements.
Treatment
Locate main and satellite nests, treat with non-repellent baits.
Follow-up
Inspection visit – written guarantee.
§8We answer you
Frequently asked questions
Is it really a hornet?
Despite its popular name, this is not a real hornet, but a wasp of the genus Dolichovespula.
Can we get close?
No, it’s very aggressive and can sting several times. Keep a distance of at least 5 meters.
Is the nest reused?
No, the nest is abandoned each autumn and a new one is built in the spring.
React quickly, sleep well.
The longer the infestation lasts, the more expensive it becomes.