The real “cancer” of orchards are insects such as the Drosophila suzukii, the so-called “fruit fly”, that has laid siege to European orchards in the last few years striking different species of fruit.
Another dangerous insect is the Carpocapsa, a little butterfly or moth, lethal for apple trees. Its pink larvae with brown head penetrate fruit while still green, digging out tunnels until reaching the seeds.

Last but not least, the Asian stink bug: as its name suggests, this insect comes from Asia, and we have probably already bumped into this bug before without distinguishing it from our own homegrown species; albeit smaller, it reproduces with alacrity and risks becoming a threat to coming harvests.