homemade fly trap

Making a Homemade Fly Trap

If you do not want to buy any of the fly traps out on the market, fear not, for I have the perfect solution for those of you who know your way around a workbench. Killing flies and any other small pests do not have to be expensive. There are always cheap and easy solutions you can use without getting to a local store. Here I will show you how to make your own homemade fly trap. All traps on this list can be used as both indoor and outdoor fly traps.

Why Make a Homemade Fly Trap

While many of the fly trapping products you’ll see on this site will give you much more than you paid for, I understand there are some folks out there who cannot simply afford the items I’ve listed here. By all means, if you have the money, go spend it on a fly trap. There really is no point in going out buying all the materials when you can buy a pre-built one that works just as well. But if you do not have the money to go spending on a fly trap, try to use household items to fit the materials needed here. If you are missing material and want to go out and buy it, don’t bother, as the material will most likely cost you just as much if not more than a pre-built fly trap.

Fly traps are great to fly killers too but not all of them are effective in all types of environment. If you also decide to go for aerosol sprays in the market, they can pose a threat to your family and plants. Some sprays contain harmful chemicals that are not suitable for indoor use. Creating a homemade fly trap is probably the safest way to exterminate flies from your property. Although some of the ingredients are a bit expensive, the end product will still be worth all the money. You can definitely see immediate results after using the homemade fly traps that are listed in this article. Some fly traps are only meant to repel flies while others are for killing the pest. There are some suggestions below on which type of homemade fly trap you would want to use in your home.


If you’d rather take a creative approach and try to devise something yourself, there are a few things you should know:

  • Dish soap helps keep flies from flying back out once they’ve hit the water. If you add maple syrup, it will make the water stickier and even harder for the flies to get out.
  • Water bottles or 2-Liter cola bottles are often used as a homemade fly trap by cutting out the top and flipping it upside down so the nozzle faces the bottom of the bottle inside it.
  • If you are to use a water/cola bottle and keep the cap on, be sure to poke an 8mm hole through the cap. This will make it easier for the flies to get in and harder to get out.
  • Slicing up apple chunks, dicing some raw meat, anything that will rot and decay will attract flies. The smellier it is, the more flies it will attract. If you want to use one of these methods as an outdoor trap, I’d suggest a more pungent stench.

DIY Fly Prevention

If you’re looking to prevent anymore flies coming into your home, this is a simple way of doing just that. The materials for this are a clear plastic bag, some pennies (2-4) and some water. You will also need a string or something to hang it up.

  1. Fill the bag up with water enough so you can still close it.
  2. Place the pennies in the water in the bag.
  3. Hang the bag outside a door or window, somewhere the light will reflect off the pennies.

The way this works is that when the sun shines and reflects off the pennies it will look like the eyes of a predator, almost like that of a spider. This helps repel flies and various other insects but flies especially. Remember that this particular solution is only for repelling flies. If you want to kill flies, you will need stronger ingredients. Fly repellents are only considered to be very useful in homes where there is still no fly infestation. This is the best and easiest way to prevent flies from entering your property.

Drink Bottle Homemade Fly Trap

While there are various ways of getting rid of flies through a DIY method, cola or water bottles are the most common as they’re simple to create. This takes no more than a plastic bottle, some tape, water, and any kind of bait you want to use (in this case, sugar water).

  1. Remove the cap from the top of the bottle.
  2. Cut the top off from the bottle using a pair of scissors. Poke a hole through the bottle (using a sharp knife or a scissor blade) where the funnel of the soda bottle ends, and where the large shaft begins. This should be near the middle of the bottle.
  3. Flip the cut piece over and stick it into the bottom half of the bottle. If you cut close enough to the edge of the funnel, it should stick inside as you slide it in.
  4. Tape the top on securely so that the edges are sealed shut.
  5. Pour a solution of 50/50 water and sugar so it fills the bottle up to 1 in below the nozzle.

Alternate Drink Bottle Homemade Fly Trap

There is another kind of fly trap that is used in a homemade fly trap. This is an alternative to the cola bottle trap. Because you will be using raw meat in this trap, it will smell fairly bad. You will want to keep this trap 20ft. away from places of high daily activity. It consists of some raw meat, dish soap, maple syrup, water, a cola bottle, and a plastic bag. It’ll take about a day before you will start to see a result from the fly trap.

  1. Pour in 2 Tbsp. of maple syrup into the bottle.
  2. Fill the bottle up halfway with water.
  3. Add 2-8 drops of dish soap into the bottle.
  4. Put the raw meat bait into the bottle.
  5. Remove the safety band off of the bottle’s nozzle.
  6. Cut a corner off the plastic bag.
  7. Stick that corner into the nozzle of the bottle and try to form it into a funnel with your scissors.
  8. Put the safety band back on the bottle with the plastic bag still in place.
  9. Cut off the excess of the plastic bag.

Double Drink Bottle Homemade Fly Trap

All you need for this homemade fly trap is a knife and two plastic bottles. This one will require you to get creative in coming up with the bait.

  1. Cut a small hole in the side of the first bottle.
  2. On the second bottle, cut the nozzle off the top.
  3. Take the nozzle and put it in the hole so that the nozzle is facing outwards.
  4. Now, all you must do is add some sort of bait.

In Conclusion

These homemade fly traps can go toe-to-toe with even some of the professionally made ones. They use the exact same science behind them and use roughly the same materials so they cost just as much. The only benefit homemade traps have is that they can be used both indoors and outdoors depending on the amount of bait you put into it (less for indoors, more for outdoors). All in all, these homemade fly traps are a great solution to your pest problem. They’re cost effective and kill your flies in a timely manner. Homemade fly traps are more recommended for regular use than those products you can purchase at local stores.

Some insecticides and fly sprays can be harmful when used regularly. Prolonged exposure to strong chemicals coming from these products can be dangerous to the health of you and your family. Surrounding plants and pets are at risk too. This is the reason why most professional pest controllers would let the entire members of the household out while they spray insecticides inside the house. Homemade fly traps, on the other hand, are a safe and effective solution to fly infestations. Some can be used to kill flies while others are for fly repellent. Some of the ingredients may be difficult to procure but the end result is so much better than most traditional fly traps.

If you want an alternative solution to flies without having the need to hassle yourself in creating a homemade fly trap, you can go for over-the-counter products instead. Just make sure that the ingredients used are natural. Avoid those that contain hazardous chemicals. If you want a reusable option, purchasing a fly trapping device is recommended. Electric fly traps are effective fly killers too but it usually takes time before you can notice any difference in the number of flies that typically lurk in your home. If the above suggestions still do not work, it would be best to call for professional pest controllers already. They should be able to provide a quick and permanent solution to your problem.