They create pin sized hole in fruit, often found with larvae in the fruit.
Often will swarm in small clouds of black dots around your fruit / fruit trees.
Fill a shallow bowl with beer to attract and drown pest.
Use apple cider vinegar.
Fill a bowl or glass with apple cider vinegar, cover with plastic wrap and a rubber band to seal the edges, and poke tiny holes in the top
Drown flies by leaving out a bowl of vinegar and dish soap.