11/09/2026
People in Northern Ireland are being urged to remain vigilant for Asian hornets.
The Department of Agriculture, Environment and Rural Affairs (DAERA) has issued the appeal despite no fresh, confirmed sightings this year.
It follows the completion of a two-month Asian hornet Spring Queen Monitoring Programme in the Dundonald area.
The Asian hornet, also known as the yellow-legged hornet, is an invasive non-native species originating from East Asia.
It is a highly effective predator of insects including honeybees, wasps and other important pollinators and could have a serious impact on native insect biodiversity and crop pollination.
DAERA Minister Andrew Muir said: “In October 2025, the Northern Ireland Environment Agency (NIEA) removed Northern Ireland’s first confirmed Asian hornet nest following its discovery in Dundonald.
“Although the monitoring did not detect any Asian hornets, there is always a risk that some may have evaded the monitoring exercise.
“For that reason, we would still urge the public to be vigilant and report any suspect sightings and please check out all the ID Guides on our website and avoid killing or catching other valuable pollinators unnecessarily.”
A total of 34 traps were monitored and checked twice weekly between April and May 2026 as a precautionary measure when Queen hornets usually emerge prior to the building of secondary nests.
Initially, monitoring was planned over a three-month period, but the low temperatures and poor weather delayed the start. Queen hornets will not come out of hibernation until there are consistent days of 12 – 13 deg C. and above.
The traps used were designed to selectively trap Asian hornet queens while excluding by-catch of other insects, but none were detected.