Oct 08, 2014 - 04:32 PM
Bifen kills most flies such as Houseflies on contact and will provide some residual to kill others. I would not recommend it as the only means of control in a severe fly infestation.
Flies B Gone fly traps, Maxforce Fly Spot Bait, Maxforce Fly Granules and the NEW Alpine Pressurized Fly Bait all work really well at controlling flies.
We have a complete page on controlling flies here - http://www.epestsupply.com/flies.php