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A tree surgeon was taken to A&E after being stung by yellow-legged hornets in Sassenage, Isère, on Monday 29 September 2025.
He had come to tend to four trees in a garden on Monday 29 September 2025, in Sassenage, Isère. Unfortunately, the tree surgeon cut a branch of a cherry tree on which a nest of yellow-legged hornets had been built, according to Le Dauphiné Libéré.
On his back and head
Hundreds of hornets escaped. The tree surgeon was stung by ‘more than 20 hornets on his back and head’. The man managed to climb down the ladder, ‘ran into the street’ and ‘collapsed after twenty metres’, according to our colleagues. ‘He was having trouble breathing and couldn’t walk anymore’, said the resident at whose home the professional was working.
As long as the nest is not touched, this hornet ‘does not sting,’ according to two amateur beekeepers, Farid Benzakour and Pascal Laygnez, municipal representatives for GDS (Groupement de défense sanitaire), who fight against the proliferation of yellow-legged hornets from spring to autumn.
‘Life-threatening’
Following the incident, the nest had to be destroyed. A professional from Stop Guêpes 38 was called in to carry out the operation. He strongly advises against individuals trying to kill hornets with insecticide spray. ‘It’s life-threatening. If you attack a nest, the hornets will sting in rapid succession.’
