Do they really form from fruit going bad... or do they COME To the fruit.. I dont understand how they would form.. from just fruit.. =-/
http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef621.htmFruit flies lay their eggs near the surface of fermenting foods or other moist, organic materials. Upon emerging, the tiny larvae continue to feed near the surface of the fermenting mass. This surface-feeding characteristic of the larvae is significant in that damaged or over-ripened portions of fruits and vegetables can be cut away without having to discard the remainder for fear of retaining any developing larvae.