There is news that is certainly bad. Mosquitoes go to the hills. Those who hoped to leave these insects behind by climbing in altitude can put their hearts in peace. There are mosquitoes that are not afraid of the cold and have also arrived in Italy. A study led by the University of Milan reveals the spread in Lombardy of a species of mosquito able to resist colder climates, native to Korea and other areas of the Far East. The results were published on Parasites & Vectors.
Is called Aedes koreicus and is considered an alien species. It comes from the colder areas of the East: China, Japan, Russia and the Korea from which it takes its name. It has adapted to the foothills of the Po valley. In the monitoring carried out it was also reported in Liguria, but not colonies as have been found in areas even at 700-1000 meters.
It looks like a relative of the tiger mosquito. “Morphologically it is very similar”, explains Sara Epis ofState University of Milan, «It is a little bigger and with a streak, but it is often confused with that tiger and has been present for some time in Lombardy even if not immediately identified. It stings both humans and animals. It has diurnal activity “.
His arrival in Italy is the son of a traveling world. First of all the continuous movement of people and goods it has facilitated the arrival of the species which are then favored by the climatic conditions and by the availability of environments suitable for the development of the larvae.
Monitoring of the summer of 2020 led to 6000 the larvae found between Bergamo and Brescia with hundreds of mosquito eggs from water collections.
«It’s difficult to stop their arrival, but we can intervene by limiting the development sites of the larvae: artificial basins and containers with water in gardens and terraces. This can be done by individual citizens. Public administrations can deal with places where colonies can be created, ”adds Dr. Epis.
It’s a alien species like the otters and the gray squirrel. As often in these cases, native species are at risk. “These species can also introduce pathogens and parasites that can thus reach distant regions. There is particular attention after Covid in relation to the ability of mosquitoes to transmit pathogenic viruses to humans and animals “.