Report nests of Asian hornets

Vespa-Watch is the Flemish hotline for nests of Asian hornets.

Your reports are useful for the monitoring and research of the species in Flanders. Reports of individual hornets are useful to locate nests.

Report a nest or report an individual via or

Why are Asian hornets harmful?

The Asian hornet (Vespa velutina) is a wasp species from Southeast China. Since 2016, the species also occurs in Belgium. It is an ‘invasive alien species’:

  • The species did not originally occur here, but is now rapidly increasing in number and spreading throughout Flanders.
  • It attacks honey bees and other native insects that pollinate our flowers and plants.

What can you see throughout the year?


How do I recognize an Asian hornet?

See identification.

Where have Azian hornets been seen this year?

This map shows the hotspots and observations of the current season.

What to do when you got stung?

See the advise of the poison control center.

More questions?

See the FAQ (Dutch).