To get rid of fruit flies take a jar or bottle. Put a small piece of fruit in the 
bottom and a litte water the make a paper cone with a small opening at
the tip . Place the cone in the jar so that it is a couple inches above the fruit. 
Tape the cone inside the jar so it won't come out. They go in to get the fruit 
and can't figure out how to get out. When you are ready to get rid of them 
put a small amount of vinegar or ammonia in the botttle. If you set the flies 
free they will come back . It works for us everytime. You do need to move all 
other fruit to a fly proof container first.