Eliminate breeding house. Dispose of trash and fruits or vegetables that are damaged. Clean the sink with drain cleaner and turn the garbage disposal to eliminate waste, if there are flies in the sink area.
Fill a glass jar with 1 inch of beer or cider vinegar. You can also put a banana slices on the bottom of the jar.
Make a hole in a corner of a plastic sandwich bag size. Make a hole no more than 1/8 inch in size.
Place the corner of the pouch with the orifice in the interior of the vial. Fold the openingof the bag over the rim of the jar and secure with a rubber band. The bag is like a funnel in the jar with a hole in the bottom.
Place the jar in the area near the largest population of flies or mosquitoes area. Use multiple containers for severe infestations. Flies enter the funnel to feed but can not escape.
Replace the bottle every two or three days until no flies or mosquitoes in the room.
are the main culprits.