The bug often called “cherry fruit fly” is a tiny fly that lays eggs on ripening cherries. It’s also called the “cherry maggot“. Generally, this happens end of May or beginning of June, and can last until July.
The hoverfly: even if the name doesn’t ring a bell, you’ve probably seen them before and wondered what kind of insect this was. In spring and summer, one often sees them flying around, hovering at a standstill around melliferous flowers and trees.
A fly that is slightly larger than the common housefly, onion fly is a destructive pest for certain Alliaceae plants. Not only do they reproduce extremely fast, but the larvae trigger bulb rot and eat the bulbs out from the inside.