Halyomorpha halys (Stål, 1855) in vineyards and apple orchards in Valtellina and Northern Lake of Como (Insecta, Heteroptera)

The Asiatic brown marmorated stink bug, Halyomorpha halys (Stål), in the last decade infested North America and, recently, Europe and Italy, where it was recorded in Lombardy. Until 2014, it was not recorded in Valtellina, and, in 2015, fourteen pheromone-baited traps were placed in vineyards and apple orchards. Captures indicated that H. halys climbed rapidly the valley, by flight along “Costiera dei Cech”, and by commercial transports. In one locality (Northern Lake of Como - Sorico) feeding activity caused deformity on pears. The species was recorded also on pomegranate, quince, and pepper. In 2016 the catch of several specimens in Sondrio and Ponte in Valtellina confirmed that the species established in this area.