FIFTY Asian hornet sting incidents were reported in Jersey last year – including one confirmed anaphylactic reaction and a number of hospital attendances.
Most incidents followed the accidental disturbance of nests, according to Environment Minister Mary Le Hegarat.
Officers also knew of near misses involving Islanders, contractors and children who narrowly avoided disturbing nests and suffering potential injuries.
Senator Le Hegarat said: “The likelihood of serious sting incidents, including life-threatening reactions, is expected to increase.”
More than 800 nests had been identified by early October this year – 50% more than at the same point in 2025. Most have been successfully destroyed.
Around 1,000 nests are forecast for 2026, with Jersey potentially able to support around 2,000.
Responding to questions from Deputy Louise Doublet, the Environment Minister said hornets were increasingly becoming “a broader public safety and public service challenge”.
Their activity has already caused disruption, including temporary restrictions at schools, parks, visitor attractions and hospitality venues.
The cost of the Island’s control programme is expected to reach approximately £90,000 this year, up from £74,000 in 2025 and £71,000 in 2024.
Those figures exclude thousands of hours donated by Jersey Asian Hornet Group volunteers.
The Minister said complete eradication had never been considered achievable because of the established population, large populations in neighbouring France and the continuing risk of natural reintroduction.
Instead, the programme focuses on slowing the species’ establishment, destroying nests and reducing harm to wildlife, businesses and public safety.
Long-term management is likely to require additional resources and a more coordinated response across government, public services, businesses and volunteers.
