Asian Hornet

The Asian Hornet is not native to the UK, originating from East Asia and unable to naturally migrate to the UK. The primary concern with the Asian Hornet is its predation on bees. In France, it has heavily preyed on various bee species, including the familiar European honey bee and numerous solitary and colonial bees. Nature conservation groups, such as the RSPB, are worried about the Asian Hornet’s impact on bees, as these pollinators are crucial for maintaining healthy ecosystems.

To recognize an Asian Hornet, observe its body, legs, and size. The Asian Hornet has a dark thorax and primarily dark abdomen with an orange or yellow fourth segment, while the European Hornet features thick yellow bands across its entire abdomen and a red-brown thorax. An immediately identifiable characteristic of the Asian Hornet is its bright yellow leg tips, in contrast to the European’s brown legs. Additionally, size can help distinguish the two; European Hornets are much larger, with workers measuring 25mm and queens up to 35mm, whereas Asian Hornets are generally between 20-24mm, only slightly larger than the Common Wasp.

The Asian hornet (Vespa velutina), also known as the yellow-legged hornet or Asian predatory wasp, is a concern as an invasive species, with confirmed sightings now in the UK. Recognising these hornets is essential for addressing their presence effectively.

The yellow-legged hornet is a social wasp species that builds large, egg-shaped paper nests, which can house an average of 6,000 workers. Native to tropical and subtropical areas of Southeast Asia, these hornets pose a significant threat to other insects, including bee hives.

Controlling Asian hornets is crucial to mitigate their potential impact on local ecosystems and biodiversity. Their presence can be detrimental to native insect populations and overall environmental health.

If you suspect the presence of Asian hornets in your area, report any possible sightings promptly. Use the ‘Asian Hornet Watch’ app to record and report sightings. If you haven’t downloaded the app, you can send photos and videos via email to alertnonnative@ceh.ac.uk.

Asian hornet nests can be large and aggressive. Do not attempt to remove or disturb nests on your own, as it can be dangerous. Contact professionals experienced in hornet nest removal to handle the situation safely.

To avoid attracting hornets, do not leave food or sugary substances exposed and ensure rubbish containers are sealed tightly. Consider using fine mesh screens on windows and doors to prevent hornets from entering buildings.