How to Keep Horse Flies Away from Your Pool (12 Options)

Barbecuing by the pool, relaxing in the sun and enjoying the warm weather with friends and family is what summer is all about. But when you’re dealing with horseflies, it can be hard to enjoy time outside. Horseflies are known for their painful bites, and they are common near swimming pools.


Horseflies have been around for thousands of years and are typically found in warmer climates around the world. They are black or dark brown in color, have large eyes and have clear wings that lie flat over their bodies when resting. It’s not just annoying pests; they can also spread disease to humans and animals.

Horseflies are attracted to water because they need it to reproduce. So if you have a pool in your yard, chances are they are a problem.

Fortunately, you don’t have to give up your favorite outdoor activities just because horseflies are present. Read on to learn how to keep them out of your pool so you can enjoy summer again.

12 ways to keep horseflies out of your pool

In summer, horseflies swarm everywhere. This means that it is very difficult to get rid of it completely. However, there are ways you can monitor their numbers around your pool. Here are some effective ways to keep horseflies out of your pool:

1-Keep your pool clean

Horseflies are attracted to swimming pools because they know they will find water, food and shelter.

To avoid attracting these unpleasant pests, make sure you have a good filter system and clean the pool regularly with our surface skimmer or vacuum cups. Also make sure there are no weeds growing around your pool as this can provide shelter for them.

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2-Use plants as natural repellents

Horseflies do not like certain plants more than others; they hate all plants equally! But some are more effective than others at keeping them away (and we’re not talking poisonous plants here!) These include:

  • Citronella plants – this popular mosquito repellent also works great to repel horseflies!
  • catnip – this plant is known to be 10 times more effective than DEET when it comes to repelling mosquitoes
  • lavender – you probably know that lavender has a pleasant scent, but did you know that it also repels flies? That’s because flies, including horse flies, hate the smell.
  • Cypress, eucalyptus and marigolds – are also excellent natural repellents.

3. Use a Deet based repellent

Use insect repellent spray or lotion on yourself and your children if you will be lounging around the pool for long periods of time. Use one that contains DEET or another strong active ingredient.

The best way to keep horseflies away from you while by the pool is to use a deet-based repellent. If you spray it on yourself, it will keep all insects away from you for several hours.

4. Place an electric fan around the pool

Horseflies are weak fliers and most cannot fly well in moving air. The electric fan creates a breeze around the pool, making it more difficult for horseflies to stay in the air. The wind will also prevent horses from landing on the surface of the water and biting people swimming in the pool.

5. Keep the water moving

Any kind of water movement will discourage horseflies from laying eggs in your pool as it can disturb the larvae living in the water. Install an aerator or fountain to keep the water moving, or run a motorized pool sweeper along the bottom of the pool.

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6. Add Chlorine

Horsefly larvae like standing water with lots of organic matter – just like swimming pools do if not properly maintained. Keep everything clean and add enough chlorine to keep the water crystal clear and free of algae. The amount of chlorine needed depends on many factors, including temperature and how often you use the pool, so follow the manufacturer’s instructions on how much to add.

7. Use Citronella Candles

Place citronella candles outside the pool. While they won’t necessarily keep horse flies away, they will at least add some decor and aroma to your patio or patio.

8. Spray insect repellent near the pool

You can use an insect repellent spray in areas where horse flies are most likely to appear. This includes wooded areas and areas with tall grass or shrubs.

9. Wear light clothes when swimming

As we mentioned above, horseflies are attracted to dark colors like black and blue – so try wearing light colored swimwear instead!

10. Eliminate standing water at the pool

Mosquitoes love standing water and having one in your backyard can attract horseflies and other pests like mosquitoes and ticks.

11. Use a Bug Zapper

Mosquitoes and flies are attracted to light at night. Insect zappers are designed to attract mosquitoes and other insects, so place one near your pool to eliminate them before they become a nuisance. You can also use citronella candles or tiki torches around the perimeter of the pool for this purpose.

12. Keep all food away from the edge of your pool when dining outside

Nobody likes having flies around while they eat their lunch, especially horseflies! They won’t hesitate to land on your burger bun if given half a chance. So make sure all food is covered or kept well away from the edge of your pool if you eat outside.

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In summary, horseflies are annoying insects that bother people and animals and can pose a threat to people and pets. These large, aggressive flies can spread diseases such as anthrax, swine cholera, swine brucellosis and tularemia and cause serious injury to animals.

Horseflies usually live in swampy areas and near livestock, but they can sometimes invade backyards. They are attracted to light-colored objects, especially dark clothing worn by people or animals.

If you want to keep horseflies out of your pool, use organic methods that prevent the insects from entering your pool and yard.

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