Summer is usually the favorite time of year for many people, unfortunately, the hot weather, humidity and the ever-present sun bring with them things that are not so welcome, for example flies, mosquitoes and other types of insects.

Tanning on a balcony, taking frequent baths in a pool, walking in the sun; these are some of the many things that can be enjoyed in summer. However, mosquitoes, flies and other winged insects can spoil any environment or setting without us doing much to eradicate them, unless we know how to sneak them away.

Fortunately, there are many tips and tricks to protect your home from mosquitoes, but in general, repellants and fly traps can be expensive and are full of chemicals that you would rather not have floating around in your living space.

So it is a good idea that we have found a smart, simple and eco-friendly way to enjoy a summer free from flies and mosquitoes.

A friendly way to eliminate insects

To build this homemade fly trap you won’t need much; in fact, you probably already have the necessary components at home.

What you will need:

  • A sturdy freezer bag
  • Table salt
  • Lime or lemon juice
  • Some coins
  • Water

Combine all of the above items in the bag and soon you have a hanging device that is surely a fly’s worst nightmare. Fill the clear bag with water and hang it outside your door.

Because a light source is required for the trick to work, it’s best to keep the bag near a light, lamp, or torch outdoors so you can keep flies at bay both day and night.

Why do flies hate this?

Most insect repellants are based on different fragrances or scents. However, this type of deterrent has nothing to do with smell and a lot to do with how flies see the world.

Shiny coins in the water create an uncomfortable and unpleasant sight for flies. Flies have compound eyes, and as a result, the coins create an illusion that causes them discomfort and keeps them away.

What the insects see in the bag is refraction of light; something that a human eye can easily handle. For a fly, however, it is a completely different story.

Take the housefly, for example. These insects are born with a large pair of eyes in relation to their size. Made up of between 3,000 and 6,000 lenses, these eyes see the world as a mosaic pattern, so the coins in the bag of water create a refraction that confuses them, forcing them to leave.

Now that you know why flies hate this simple trick, it’s time you went ahead and build your own and see the results for yourself.

What do you think of this trick? Have you tried it before? Many who have built their own attest to its power, so you should definitely give it a try.

Don’t forget to share this trick on Facebook, so more people can get rid of pesky flies and mosquitoes this summer.

By Dr. Eric Jackson

Dr. Eric Jackson provides primary Internal Medicine care for men and women and treats patients with bone and mineral diseases, diabetes, heart conditions, and other chronic illnesses.He is a Washington University Bone Health Program physician and is a certified Bone Densitometrist. Dr. Avery is consistently recognized in "The Best Doctors in America" list.

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