Getting to know the Asian hornet
Yellow-legged Asian hornets (FAPj) harmful to the ecosystem
In general, Asian hornets (Vespa Velutina Nigrithorax) are not aggressive, but they are still harmful to the ecosystem. Although Asian hornets have a varied diet (bees, flies, wasps, butterflies, etc.) they feed mainly on bees, which poses a threat to the beekeeping industry. Bees are essential for the reproduction of flowering plants, thanks to their nectar and pollen. In France, 30% of hive losses are attributable to this species, which has been declared an invasive alien species of concern by the European Union.
The behaviour of an Asian hornet in different seasons
Asian hornets first appeared in France in 2004. Their cycle begins in spring with the creation of their nest, which becomes very active in summer. Summer remains the most critical period, and you need to be vigilant as the hornets defend their nests to protect the foundresses who lay their eggs. As soon as the first cold spells arrive in autumn, the foundresses leave the nest to nest and reproduce the following year. The colony dies at the start of winter. The nest is abandoned and will not be recolonised the following year.
Possible actions when faced with a nest, depending on the season
- Spring: look for foundresses and new nests. Destruction should be carried out by a professional.
- Summer: search for nests, please contact a professional for treatment and pruning.
- Autumn: look for nests, contact a professional for treatment and pruning if necessary.
- Winter: Leave the nest, it will destroy itself.