Flies Be GoneFly Trap - Disposable Non Toxic Fly Catcher - Made in USA - Natural Bait Trap for Patios, Ranches. Easy to Use Outdoor Fly Trap, Keeps Flies from Coming Indoors (6 Pack)

Every summer, I order these for the flies in my backyard. I love watching the bag fill up within days, even though it’s disgusting. The only thing is the bad smell, but I guess it comes with the territory.

We were getting tons of flies on our deck and they were making us crazy. Got two of these traps and set one up about 30 feet away in our yard, up on one of the hanging plant piles. By day two the thing was already 1/4 full of flies! So nasty but SO satisfying. However I placed it where the wind could blow the smell toward our house and that’s a big NO. The thing literally smells like a hot festering garbage can. So we moved it a bit closer to the deck, but beside the garage where the wind can’t blow the smell our way. Presto, perfection. What an awesome, effective and cheap solution to our fly issue. 10/10 buy it!!

This has been the best solution to my fly problem around my house. The smell isn’t as bad as some of the reviews say. I don’t smell it at all after initially filling it with water. Unfortunately, the price has risen about $30 since last purchasing so I probably won’t be buying again anytime soon for that reason alone

Update - Jul-5-2016Well, shortly after writing a poor review (5 days into the traps being hung), the one trap now has thousands of flies in it, while the other about a third of the amount. See my attached photo. As the summer kicked into more heat, these bags get nastier. I can appreciate what others are saying about the odor, but ordinary house/black flies lay these eggs in feces, decaying flesh, garbage, etcetera, for goodness sake, so they gravitate towards stinky stuff. While nothing will rid all flies (far more bugs than any humans), this trap works and has certainly mitigated the number around our few acres - especially the living areas - patio, pool, etc. In terms of the ordor, I just keep moving the bag further into the wooded areas. If you don't have the property, then you may want to consider another method. Lastly, while this has caught tens of thousands of ordinary house fly, it has caught other flies and bugs as well. Less bothering us around the pool - especially evenings.For some reason here in the pine barrens of southern NJ, our property got hit with tens of thousands of ordinary black house flies. Never saw this prior - mild winter, who knows. I did some homework and even poultry farmers pointed to this product as the best. I bought the two pack just shy of $30 for essentially plastic bags and some smelly stuff. Five days in, one trap has a single fly in it and the other zero! I am not exaggerating when I say there are thousands flying around and I'm calling in expert help for the first time in my life for real help. Bugs ordinarily don't bother me, though this is over the top - can sit or work outside without being attacked. I'm surprised as I thought the concept was sound and the smell would certainly attract them. I even moved the traps closer to our outdoor living areas and still no flies. Not impressed. I don't see this thing picking up pace, although I could be wrong. At this point, it seems like I threw $30 bucks away.

These fly traps are very effective. They do not get all of the flies by any means, but certainly do a good job and are not as ugly as those sticky brownish strips that you can get. They are stinky but if you place them far enough away from where you will be spending a lot of time, they seem to still work and the odor is not unbearable.

At first, I thought these bags were great! I originally purchased 2, and then about two weeks later got another 2. Here's what I've learned...1. It catches flies initially, which is great. But then, they start breeding like CRAZY in the bag. All the females are visibly pregnant in there. So, it "looks" like it's catching a ton of flies (and I totally thought it was at first), but in reality, they're just forced so close to each other that they reproduce so fast, and then you have a huge bag of flies. About 2 days after hanging the bags, baby flies appear all over our patio. I think they find their way out of the bag more easily, so it solves a problem then quickly creates another.2. Because of the breeding, the amount of flies in the bag after about a week is so massive, and the smell is HORRIBLE. It smells so potent in our backyard of "dead animal".These still might be worth it for you if you have a really bad problem! But for us, I think it's creating more of a problem than it's solving, so I think we'll try some other methods. $16 per bag gets quite expensive when the problem never really goes away!!

I have about 40 flies in my house and hung this thing up at 7:00 this morning, 12 hours later ZERO flies. I followed the instructions precisely. My Dogs water bowl had about 10 flies in it and change it out twice daily. I wouldn't waste your money on this product.