Report nests of Asian hornets

Vespa-Watch is the Flemish hotline for nests of Asian hornets. Reports are followed up so that nests can be eradicated. Observations of individual hornets via or also help to detect 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.

Nests of this wasp are therefore sought out and eradicated.

How do I recognize an Asian hornet?

See identification.