What are some ways to kill big house flies?

Go Ace Hardware and buy a Stinger electronic bug killer. I had a ton of flies living on the cords of 8 foot electric light fixtures. Within one day of operation, there were thousands of dead flies collecting under The Stinger. read more

If using a jar with lid, make some holes on its lid, big enough to let the flies enter the jar. If you don’t want to destroy the lid, you may also use a funnel. If you can’t find one, make a funnel with paper by folding and stapling it in the shape of a cone leaving a hole at the narrow end. read more