Frequently Asked Questions about the Asian Hornet
This FAQ gathers essential information about the Asian hornet in Belgium: how to identify it, what to do when spotting a hornet or a nest, what the risks are, and the procedures to follow. To report a nest or an observation, please use our online reporting form.
How can I recognise an Asian hornet?
The Asian hornet is darker than the European hornet. It has a completely black thorax, a dark abdomen with a wide orange-yellow band, and partly yellow legs. The head is orange. A comparative illustration is available on our website.
What should I do if I spot an Asian hornet or a nest?
Keep your distance, do not try to catch the insect, and do not touch the nest. If possible, take a clear photo from a safe distance, then report the sighting via our online reporting form.
Can I destroy an Asian hornet nest myself?
No. Attempting to destroy a nest is extremely dangerous. Asian hornets defend their colony aggressively and can sting multiple times within seconds. Only trained and equipped professionals should neutralise nests.
Is the Asian hornet dangerous for humans?
Asian hornets are not aggressive far from the nest, but they defend it vigorously. Stings can be very painful and dangerous, especially in cases of allergy or multiple stings. Call emergency services in case of serious symptoms.
What should I do if I get stung by an Asian hornet?
Clean the area, apply cold, and monitor for allergic reactions. If swelling increases significantly or breathing issues appear, contact a doctor or emergency services immediately.
Why shouldn't I use insecticides or toxic bait myself?
Uncontrolled use of insecticides usually kills only part of the colony, making the hornets more aggressive. It also risks contaminating soil, water, other insects, and wildlife. Interventions must always be handled by professionals.
What does Vespa Alert Belgium do with hornet reports?
Each report is analysed (photos, location, context) and forwarded to local beekeepers or professional operators. Confirmed nests are added to the monitoring map.
Are Asian hornets still active after October?
Yes. Colonies remain active in Belgium as long as temperatures stay above freezing. Nests may still be active in November or even December during mild autumns.
What is the Asian hornet's life cycle?
In winter, only fertilised queens survive. In spring, they build a primary nest. In summer, the colony expands and moves to a larger secondary nest. In autumn, the colony reaches maximum size and produces new queens before dying off after the first frosts.
Who should I contact for a wasp or hornet nest near my home?
For wasp or hornet nests near homes or public areas, contact a professional pest controller or your municipality. Vespa Alert Belgium can help guide your request through the reporting form.