How to kill flies naturally?

A Homemade Fly Trap for the Barn To make this attrape--mouches, build a simple wooden frame measuring 12" X 12" X 15", with a top and bottom made of plywood (exterior is best). Cut an 8" hole in the center of each piece of plywood, keeping one of the circles to make the lid of the trap. read more

Use a fly swatter or space spray or insect growth regulator spray to kill the adult flies from laying more eggs and also to keep the drains clean. Use natural ways of pouring 1/2 cup each of baking soda and salt along with 1 cup of vinegar down the drain and let it sit for overnight. read more

Use light traps to catch larger flies. UV light traps are ideal for catching houseflies and other relatively large species of flies and pest insects. Flies are lured in by the light, and then trapped on a glue board or killed by an electric shock. Place your light traps approximately 4-6 feet (1.2-1.8 meters) above the floor. read more