Why Flies Gather Outside and How to Get Rid of Them?

Evelyn Johnson

Written By, Evelyn Johnson

Updated on 05 April, 2026

8 min read

How to Get Rid of Flies Outside
AI Generated Image: Murloft

Table of Content

    Table of Content

      When you're enjoying an outdoor party or relaxing on the porch, flies can disturb you and ruin your mood. These little creatures are annoying and unhygienic as they contaminate food and spread diseases. You should understand what attracts them to your space, then explore the solution. In this blog, we'll explain what attracts flies, why keeping them away is important, and simple, natural ways to get rid of them.

      Features of Flies

      Outdoor flies, also known as house flies, blow flies, green bottle flies, and blue bottle flies, are scavengers and feed on garbage, feces, and dead animals, and can spread disease. They also lay their eggs in the moist organic matter on which they feed. They do not bite or sting.

      Size: ¼ to ⅝ inches long

      Colour: They are mostly found in black, brown, gray, shiny blue, or green.

      Wings: Yes

      Why Keep the Flies Away?

      Flies carry millions of microorganisms on their feet, so they contaminate the food and the surface where they sit. Consuming contaminated food or drinks can cause serious health risks to you and your family. Hence, keeping the flies away from your home is necessary.

      9 Natural Ways to Get Rid of Flies

      1. Keep Pennies in a Glass of Water

      A Clear Drinking Glasses, Precisely Filled With Fresh Water, Positioned Elegantly on a Wooden Dining Table With Copper Pennies at the Bottom of Glass
      AI Generated Image: Murloft

      All you need is a few pennies and many glasses of water. This simple trick is believed to work in keeping flies away:

      • Fill the glasses with water and put a few pennies in each.
      • Keep these glasses near your food plates and around the tables.

      2. Pennies in Water Pouch

      A Small, Perfectly Transparent, Tightly Sealed Plastic Ziplock Pouch is Suspended in a Clear Glass Mason Jar
      AI Generated Image: Murloft

      If you don't want to keep so many glasses around the table in case they break, using a water pouch can also be a good idea. All you need is a small pouch, water, pennies, and a mason jar. Here are the steps:

      • Place the pouch inside the mason jar so it stays in place when you pour water into it.
      • Fill this pouch with 75% water and place a few pennies inside.
      • Spread the pennies inside the pouch, seal it tightly, and hang it where you sit and eat.

      3. Lavender and Peppermint Oil

      A Human Hand, Firmly Grasps a Clear, Gleaming Glass Spray Bottle Filled With Lavender and Peppermint Oil-water Mixture
      AI Generated Image: Murloft

      Lavender and peppermint oil mixed with water make a natural fly repellent. This natural repellent keeps flies away using a pleasant scent with the following steps:

      • Put a few drops of this oil into water.
      • Using a spray bottle, spray this mixture around the entry points.

      4. Use Orange Peels

      A Natural, Slightly Textured Off-white Muslin Cloth Bag, Loosely Filled With Vibrant, Sun-dried Orange Peels
      AI Generated Image: Murloft

      Flies do not like the scent of citrus fruits, and oranges are among them. You can either scatter the peels all around the infested areas or try this alternate method:

      • In a muslin cloth bag, put some orange peels.
      • Hang the bag in your kitchen or other areas in your home where it can be seen.

      This hack works really well in keeping flies away.

      5. DIY Cayenne Pepper Spray

      A Clear Glass Mug is Filled With Steaming, Hot Water With a Tablespoon of Fiery Red Cayenne Pepper is Partially Dissolved and Actively Settling
      AI Generated Image: Murloft

      Cayenne Pepper is known to repel flies. To make a DIY spray, follow these simple steps.

      • Take two cups of hot water.
      • Mix one tablespoon of cayenne pepper into the water.
      • Let this mixture rest for about 20 minutes so that the pepper's scent infuses well.

      That's all. Spray this solution around the areas where flies enter the house.

      6. Try Sugar and Yeast Flytrap

      A Clear Plastic Bottle Cut in Half, With Its Inverted Top Section Functioning as a Funnel Filled With a Solution of Warm Water, Sugar, and Yeast
      AI Generated Image: Murloft

      Sugar and Yeast, when combined, make a great fly repellent. The yeast and sugar release carbon dioxide, which attracts flies and traps them.

      • Cut a plastic bottle in half and turn the top upside down to create a funnel.
      • In the bottom half, mix ½ cup of warm water, ¼ cup of sugar, and 1 teaspoon of yeast.
      • Now, using tape, join both halves together and place the trap outdoors, preferably near a door or window.

      7. Apple Cider Vinegar and Sugar

      A Clear Glass Jar Holds Amber Apple Cider Vinegar, With a Tablespoon of White Granulated Sugar Partially Dissolved at the Bottom With Some Flies on It
      AI Generated Image: Murloft

      This DIY method works by attracting flies to vinegar and sugar and trapping them.

      • Add a tablespoon of sugar to a jar of apple cider vinegar.
      • Use plastic wrap to cover the jar, then tie it with a rubber band.
      • Make a few holes in the top so that flies can get into the jar in search of vinegar and sugar.

      8. Use Citronella Candles

      A Single Burning Citronella Candle, Crafted With Pale Yellow, Slightly Textured Wax, Safely Centered on a Rustic, Weathered Wooden Patio Table
      AI Generated Image: Murloft

      Citronella Candles work well in keeping flies away, especially during hot, humid days. Just make sure that you keep the candles away from flammable things. Also, keep the candles near the fan so the wind spreads the citronella fragrance, keeping flies away.

      9. Place Venus Flytraps Outdoors

      A Vibrant Venus Flytrap With Its Distinctive Open, Interlocking Lobes and Needle-like Cilia
      AI Generated Image: Murloft

      Venus Flytraps are carnivorous plants that attract and trap insects. Place your Venus flytrap plant in bright but indirect sunlight. Do not forget to water them once a week. These plants feed on flies, helping to minimize their population.

      Other Solutions for Repelling Flies

      • Use other essential oils, such as eucalyptus, to repel flies.
      • Consider planting fly-repelling herbs, such as basil and mint, in your home.
      • Maintain a clean environment by removing waste materials from your home.
      • Turn on the fans to keep flies away with airflow.

      When to Call a Professional?

      If your DIY solutions are not effective enough to get rid of flies from your home or their infestation has become too massive, you may take professional help. Professionals identify the main cause of fly infestations and provide long-term solutions. Once they identify the root cause, they implement the appropriate plan to keep flies away.

      Conclusion

      Flies may not seem harmful, but they can pose health risks by contaminating food. To deal with their small infestations, you just need to take simple actions like using natural repellents. However, severe infestations are best handled by professionals. In addition, consider keeping your home clean and keeping waste and debris out, as they attract flies.