I got this thing to control the flies in our back yard. It smells really bad, but it really draws the flies in. Look at how many flies it caught in 5 days. Be careful about setting it up within possums reach. It appears that one of our neighborhood possums was also drawn in and chewed through the plastic on day five. The next one won't be so close to the ground. I sealed it up in a gallon ZipLoc before throwing it in the garbage can.

The setup was easy. Directions are simple. String, rope, wire, etc. used to hang the bag, is not included. Be sure to have some type of rope, wire, or string that is strong enough to support the weight of the water as well as flies once full. I used doubled up fishing line which worked well.

Pros: These traps are extremely compact for storage. Buy several to have on hand. VERY effective. The time to reach max efficiency depends on heat and sun. Place about 30 to 40 feet from doors, or outdoor sitting areas. Remove when full, carefully place in plastic bag and seal. Throw away. Cons; Odor is very strong. Which makes them so effective. Place downwind. May require a water refill if weather is extremely dry.

I hate having to kill the flies but if you gotta do it, this is the way. It's been up 4 days and well… I posted a picture. It seems to have caught hundreds and hundreds. We are having a fly problem in our apartment complex at the moment due to one tenant leaving their unit in filth, and in the meantime, this thing has saved me from being landed on and swarmed. Didn't think we'd be able to fix the problem this affordably. If you're on the fence about trying this, do what you gotta do, this is super cheap for the sheer power %26 effectiveness you get. People mentioned a smell but I don't smell anything. It's hung a few feet away, and maybe 5 feet up on our porch on a hook. Easy instructions, took 1-2 days to start working. I don't think you can beat this

This bag really works. I bought three to set out, and the amount of lies they attracted was crazy. They attracted flies well into the fall, and was 3/4 full of dead flies. I recommend not putting them near where you sit, exit/enter house or eat, because it will draw the flies to where ever the traps are. The traps also put off an attractant, which becomes more odorous as the flies die, so definitely move it further out. I had it near my patio last year, and this year I'm putting them further out in to the yard. Huge difference. I will buy these every year.

Package arrived with some sort of sticky goo on the item inside the box. It was clear, waxy and odorless at first. I got it on my fingers because I didnt see it when I picked up the item. When I washed it off, it lathered like dish soap and smelled like bleach when wet. It did not affect the items contents (which are granules inside a plastic bag), and the item was not damaged, but I did have to wash the goo off the plastic Fly Trap bag. Whatever that mystery goo was, it must have gotten on the item by the packager. As for the Fly Trap, it works fine outdoors. We have horses nearby which tend to attract flies in the summer, so I place this trap several feet away from our porch to eliminate the fly population in our yard. I prefer the ones from Lowes though. Lowes carries a similar item with more muted colors on the bag, comes with its own wire to hang, and only costs a few cents more. This one from WalMart does not provide the wire/string to hang it up and the bright green color stands out conspicuously.

These things work great. They will capture hundreds upon hundreds of flies. But they smell AWFUL, both brand new (because of the attractant) and once they start filling up with dead flies. These must be changed out weekly. (This pic taken after the recent rainstorm added water to the bag.)

I do feel like this little bag is attracting flies from our whole neighborhood. Within a few days it was almost half full. As disgusting as it is, we have seen a massive reduction in flies around our house. Tip: Place it away from any entry ways or windows. It's not the best smelling thing. But it works. I have already recommended it someone.

The fly trap is remarkable in how many flies it catches and eliminates, we can now eat outside and not be hounded by flies. Be aware that the reason it works is really stinky smelling bait, and you dont want to set it up anywhere the scent might blow into the house. I filled two traps and am on the third one, with flies completely under control

These things smell atrocious, but they work! Within 2 days there was an inch thick layer of dead flies. Have noticed a significant decrease in flies in our yard. We live on 3 acres surrounded by farmland, so regular black flies, horse flies and deer flies. No more!