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Vespa velutina: diffusion in Italy, struggle, traps and all useful information. How to recognize it, the video identikit by Stop Velutina, damage to the hives of Liguria, Veneto and Emilia.
Therewasp velutinais a small hornet native to Southeast Asia. It is widespread in areas such as India, Indochina, China and Java. In recent years, due to exports from Asian countries, it has also spread to Europe, initially in the southern part of France and from there it reached Belgium, Portugal, Spain and Italy. In these countries, thewasp velutinais considered aalien organism, a serious threat to our ecosystems because there are no natural predators.
Vespa velutina in Italy
The first official registration of the subspecies nigrithoraxin Europe it dates back to 2005, in France, although some damage had already been reported in 2004, in the same country.
In Italy, the red zone of infestation of thewasp velutinais Liguria and the neighboring regions. In Liguria, thewasp velutinawas first reported in 2012.
Therewasp velutina, also calledAsian hornet, is a predator that hunts forbeesand other pollinating insects.
InItaly, thewasp velutinait is not present only in Liguria. It spread rapidly in Piedmont (especially between the provinces of Cuneo and Turin) and is pushing towards Veneto (already reported in the province of Rovigo), Lombardy and Emilia Romagna.
Vespa velutina and damage to bees
According to the data provided by the French observers, the loss ofhivesinduced bywasp velutinais equal to 50% with a potential progress of 100 km per year.
In other words, from 2004 to today, thewasp velutinait has damaged 50% of the hives in the localities where it is established and, every year, it extends its range of action by 100 km.
THEdamage to beesoccur on two fronts: in addition to directly hunting thebeesat the entrance to the hive, theAsian hornetprevents the exit of bees to collect nectar and pollen. In this way, entire colonies of bees are deprived of food and risk dying.
In the video presented at the beginning of this paragraph, a Ligurian beekeeper shows the damage of theAsian hornet. As the beekeeper explains, there are two or three examples ofAsian hornetto threaten every hive. Bees, feeling threatened, do not go out to collect pollen, endangering the livelihood of the entire hive.
A very sad scenario: bees subjected to an alien insect!
The damage caused by agriculture and pollution was not enough. Today, the Italian bees have a new formidable enemy. For further information:bees and pollution.
Vespa velutina, fight
Speak aboutfight against the Asian hornetit's not easy at all. There are no natural predators on our territory and the introduction of new species to implement a biological fight could trigger further imbalances in our ecosystems.
Sting or Bite of the velutina wasp, dangers to humans
TheAsian hornetexhibits a fairly aggressive behavior towards humans. Like the other species of wasps present in Europe, the Asian hornet also has a sting so it is improper to speak of a "bite". The danger of the velutina wasp to humans is comparable to that of other homegrown wasps.
The situation is different for thebees: this hymenoptera, in Europe, is able to strongly undermine the existence of apiary communities.
Vespa velutina, how to recognize it
The Asian hornetwidespread in Europe is thevespa velutina nigrithorax, has a body length on average 30 mm and is recognizable by the dark body and the yellow line that cuts its abdomen, inside which it has a black triangle.
To recognize and fight thewasp velutinathrough alternative fight and use of traps, I invite you to consult the animal biology manual dedicated to this fearsome predator:Biology and reproduction of the Vespa velutina: identification, morphology and predation.
How to recognize the wasp velutina? Here is the identikit video uploaded by Stop Velutina, the Italian network for the containment and struggle of the Vespa velutina.