They were the first reported outbreaks spread of Midge soft fruit fly (Drosophila suzukii) in the district of Mascali (Catania) on cherry tree where it causes serious damage to the fruit. This small Diptera has been reported in Italy in 2009 on raspberries and other small fruits and attacks many other species of fruit with fruit pulp soft and thin epidermis as cherry, apricot, grape, etc.
Like all midges belonging to the genus Drosophila is attracted by sugary substances but in this case the female is provided with a serrated ovipositor able to lacerate the skin of the fruit on the plant and lay their eggs in the pulp. The fruit damaged meets later in the phenomena of decay.
This insect performs up to 13 generations and its annual rate of diffusion together with damage to the fruits in the ripening stage make it particularly insidious.