15-22 mm – Reddish-brown and yellow
Insect – Moderate risk
Paper wasp
The paper wasp can be recognized by its elongated reddish-brown body and open, parasol-shaped nest. Less aggressive than the yellowjacket, it only attacks if its nest is threatened. Its nests are smaller (30 to 200 individuals) and often under eaves.
§1Distinctive features
How to identify it
Larger than the yellow wasp (15 to 22 mm), reddish-brown with yellow spots. Very elongated body. Its nest is open (no envelope), composed of visible cells.
§2Habitat
Where to find it
It prefers eaves, balconies, roof frames and windowsills. Its open nests are easily visible.
§3Reproduction
Lifecycle
Without intervention, an infestation can double in size in just a few weeks.
§4What to look out for
Signs of infestation
- Nest in the shape of an open parasol under the eaves
- Reddish-brown elongated wasps come and go
- Presence near doors and windows
- Visible nest with uncovered cells
§5Why act fast
Risks
- Painful stings if the nest is disturbed
- Allergic risk similar to other wasps
- Nesting close to entrances increases the risk of contact
§6Prevention
How to avoid it
- Remove inactive nests in winter or early spring
- Paint or varnish wooden surfaces that attract them
- Seal cracks under eaves and gutters
- Inspect rain-sheltered areas regularly
§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 less aggressive?
Generally less aggressive than the yellowjacket, but can sting if you get too close to its nest.
Can you remove a nest yourself?
An inactive nest in winter can be carefully removed. An active nest requires complete protection.
Why do they nest under the eaves?
It seeks elevated, sheltered surfaces to protect its nest from the rain.
React quickly, sleep well.
The longer the infestation lasts, the more expensive it becomes.