A dangerous invasive insect species, known as the electric ant or little fire ant (Wasmannia auropunctata), has been detected for the third time since 2022 in the French department of Var. Authorities have announced an urgent eradication plan to combat this threat to local ecosystems and public health.
A Microscopic but Formidable Foe
Measuring just 1.2 millimeters, the orange-golden-brown electric ant is native to Latin America. Its sting, often described as a sharp electric shock, is intensely painful for humans and can be fatal to small animals. The prefect of Var, Simon Babre, confirmed a new nest was reported in March in Cavalaire-sur-Mer, raising significant concerns.
Dual Threat to Biodiversity and Agriculture
The ants form supercolonies containing millions of individuals that attack other insects, birds, and mammals. They also farm aphids and scale insects, pests that damage agricultural crops. This combination makes them a severe ecological disruptor.
National Geographic details their aggressive behavior: the ant latches on with powerful mandibles before arching its abdomen to inject venom with its stinger. Group attacks are common, amplifying pain that can last for hours. While not always lethal, medical reports note potential death from anaphylactic shock, and pets risk blindness if stung near the eyes.
Unprecedented Eradication Measures Launched
In response, the Var prefecture has authorized a novel insecticide powder treatment for the first time in France. With ministerial approval, funding is secured to treat approximately two hectares each in Toulon and La Croix-Valmer over 180 days.
Previously, only bait stations were permitted, but specialist Olivier Blight from Avignon University noted the ants’ wariness made those methods ineffective. The new strategy involves direct soil treatment, with drones deployed for inaccessible, steep areas. Public meetings will be held in May to inform residents.
Public Advisory and Reporting Protocol
The Var department has issued guidelines for suspected nests:
- Report any suspicion immediately to Fredon Paca or the French Biodiversity Office.
- Exercise extreme caution to avoid stings when near a nest.
- Contact the local municipality for special authorization to incinerate green waste on-site or at a dump, as ants may colonize it.
The coordinated effort aims to prevent the establishment of this invasive species, which currently appears confined to Var but poses a significant ongoing challenge.
