PT Alpine Pressurized Fly Bait - 16 oz can - by BASF

So far, PT Alpine is the best product I've tried to control flies on the patio. I've tried sticky traps and the hanging bags that smell like rotten eggs.. neither of them worked for me. I also picked up a can of Quickstrike granuels, which I've read works well, and I will leave a review on that one after I get around to trying it. PT Alpine is not perfect, but it gets the job done. The product makes 2 main claims: 1) that it attracts flies and 2) that it kills flies. It does NOT seem to be a good attractant at all. They will lick the sprayed surface if they happen to land on it, but they don't seem to be attracted to it. When used by itself, flies still buzz around but never land on the sprayed surface. If you put some food or garbage out to attract the flies, and then spray it, it works great. Within 15 seconds or so after landing on the sprayed bait, the flies will start twitching and fall over motionless. It is VERY effective. I'm sure it works so well on trash dumpsters because the stinky dumpster itself functions as the attractant, not the fly bait. It's peculiar how this product works. I've noticed that it doesn't always seem to kill flies right away.. sometimes they will come back to life and start break dancing or twitching after appearing to be dead for 20+ minutes.. but then they will once again stop moving, and they never get back up and fly away. Overall, it's a highly effective product for fly control as long as you have something to attract them to it. Though calling it "bait" is a bit of a misnomer, since it doesn't seem to do anything to lure flies. **UPDATE** Photo added to my review of my solution some general notes about fly control, and my comments on Quickstrike. Firstly, Quickstrike granules work almost identical to PT Alpine (extremely well), so either product will do the job, depending on how you prefer to approach the problem. It only works if you add liquid to the granules and let the flies eat it, but that means there's clean-up to do and it still requires an attractant. I chose to stick with PT Alpine for reasons explained below. The fly problem I'm trying to solve is keeping them off the patio so I can sit/grill in peace. My solution (the attached photo - an early prototype) was to repurpose an empty cashew can. Inside the can, I put a styrofoam cup filled with stinky bait (more on my bait below). I cut a hole in the lid of the can and put a scrap piece of window screen under it. I set this contraption out in the grass, spray the lid and screen with PT Alpine, and then let the flies do their thing. Why did I do it this way? Because I never have to clean up fly carcasses! The flies go after the smell but can't get inside, they lick the lid and screen and then die in the grass and get mowed up later. Another big bonus is that I use very little PT spray, so it will last a long time. In my testing, PT remains very effective for at least a week if not longer, which is impressive. As for my bait.. since I had some of the hanging fly traps left over that you fill with water, but instead of returning them, I removed the pouches of attractant and poured them into a shaker jar. I read somewhere that it is dehydrated fermented eggs. I shake a little bit of it into the styrofoam cup with some apple cider vinegar. The cider vinegar not only attracts flies, but also gnats (which PT Alpine also kills), and the stinky stuff helps a lot. I didn't want to use anything sweet that might attract ants or bees. Apple cider vinegar is effective and slow to evaporate. This is working well for me. Whatever product/method you use, here is the key to mastering fly control: Almost any product will work as long as you have a good attractant. Fly paper works great IF you put it near something stinky. PT Alpine works IF you spray it near something stinky. Quickstrike will work IF you put in something stinky. But nearly all products require you to regularly clean up hundreds or thousands of fly corpses, which is never fun. So that's why I did it the way I did it, and there is still room for improvement. The 2nd most important consideration is: Flies like shade if it's hot, and sun if it's cool, so put your solution where it will work best. I hope my tips help others! Good luck, and get creative.

It works. See laminated some squares of white paper. Have them a quick spray and taped it to a few windows. The flies are drawn to the white/light combo. As soon as they land it starts working and they are gone shortly after. It was a bit pricey, but worth every penny.

I have tried so many other baits, etc to no avail. I have a great exterminator so I asked him if he had any ideas about how I could deal with flies. He suggested this exact product so I bought some. AMAZING!! I just sprayed a bit on the inside of my window by the back door (where most flies come in) and waited to see what happened. The flies come in and fly around for a bit. They eventually end up on the window or the sill, find the bait/poison take a nibble and almost immediately fall over kicking until dead. The spray has lasted for 6 weeks without being refreshed! I also spray the inside of my garbage can in the garage. I see dead fly bodies all around the can. This is absolutely the best way I have found to deal with flies! The only issue I have had is the spray nozzle. If I get it out of alignment, it won't spray. I thought something was wrong with the can for awhile and was disappointed that I wasn't going to get more use of of the can. I finally figured out how to press the spray nozzle and I'm golden!

If you are dealing with an annoying fly infestation, stop looking and just buy this. I have tried every sticky trap, ugly hanging ribbon, and DIY apple cider vinegar trick in the book. Nothing compares to this spray. Here is why this stuff stands out: * Instant Results: I sprayed it on a few hidden surfaces near my windows and trash can, and within a day, the flies completely disappeared. * Zero Mess: Unlike those gross hanging sticky traps that look awful in your kitchen, this dries completely clear and leaves no sticky residue behind. * Long Lasting: You don't have to keep spraying daily; one application really keeps working for weeks just like it promises. * Worth Every Penny: It might cost more than a standard grocery store bug spray, but it actually completely eradicates the problem instead of just scattering them around. Pro-Tip: Spray it onto a piece of cardboard or disposable plastic and place it where flies naturally gather. It draws them right in! Will absolutely keep this stocked in my house. 10/10 highly recommend!

Sprayed in the window sill last night and woke up to dead gnats and flies this morning. Was hesitant because of the price but I saw the reviews and was so tired of dealing with these things. No odor. No real mess. Dries clear. Easy application. I'd been buying the Terro apples, which work but this is much faster and kills flies not just gnats/drain flies/fruit flies. If you are debating it just order it.