they attract even the little knats. The downfall of the traps are that they have a bad smell and the water evaporates, so you have to keep refilling them.

Cut a round circle in top, hang where there is a fly problem, careful not to place where you can smell the odor. When full of dead flies, place in a plastic grocery bag tie tight and discard. Never have to touch it! Works amazing!!

[This review was collected as part of a promotion.] It is just a fly trap but I haven't used it yet and N/A wasn't an option for the satisfaction or quality questions

yes the longer you have these out the longer they start to smell like death. I use these all around my chichen run and put one in my garage to keep the files out. I'm using these under not normal situations with my chickens and they work great

This thing is a beast! It traps so many flies, that you need to dispose of it after 1 week. Because bag is so full of dead flies, that it starts to smell something awful. Amazing product.

Works great for us.. Always had flies coming inside for anytime we open doors and bbq, but now just 1 may come in, every other day, sometimes not even that. I replace once a week or every 2 weeks, depends how full it is.. A win thankfully!!!

This bag is my sixth this sumner. Next door neighbors have a lot of dogs and do not clean after them. Tons of flies and these bags work! Its full after a week to ten days if you have a heavy fly infestation. Keeps most away from our door

Bought 2 from cal ranch worked great. Bought 1 from Walmart and it hasn't done anything. Not sure if it's just defective or what. Not impressed for the price they should work.

Omg this is amazing! Started working immediately. It smelled bad after a few days though. But definitely getting a few more! BTW doesn't come with hook or anything to hang it up so that's why I'm giving it 4 stars.

These things stink horribly, but the flies love them and they work great. I change mine once weekly on trash day and within an hour of hanging the new one it's got dozens of flies in it.