How to Keep Horse Flies Away from Your Pool: Simple and Effective Tips

Horse flies can be a nuisance, especially when you’re trying to enjoy a relaxing day by the pool. These pesky insects are not only annoying, but they also pose a risk of transmitting diseases. It’s important to find effective ways to keep them at bay and maintain a comfortable swimming environment.

Various methods can be employed to deter horse flies from your pool area. Some of these include managing water sources, providing shade, and utilizing traps or insecticides. By implementing a combination of these techniques, you can reduce the presence of these irritating pests and make the most of your outdoor space.

Understanding Horse Flies

Habits and Characteristics

• Horse flies are daytime biters.
• They typically breed in moist, sunny areas near the water.
• Female horse flies require a blood meal to reproduce.
• They are known for their painful bites.

Male and Female Differences

• Male horse flies:
  • Do not bite
  • Feed on nectar and pollen
  • Have large, wrap-around eyes
• Female horse flies:
  • Bite and feed on blood
  • Require a blood meal for egg production
  • Have separated eyes

The Tabanidae Family

• Horse flies belong to the Tabanidae family.
• Tabanidae also includes deer flies.
• Both horse flies and deer flies are vectors for diseases.

Comparison Table: Horse Flies vs. Deer Flies

Preventing Horse Flies Around Your Pool

Eliminating Standing Water

Standing water attracts horse flies, so reducing or eliminating it is crucial. Check the area around your pool for standing water regularly, and clear any buildup. Common sources of standing water include:

• Pool covers
• Buckets or containers
• Low-lying areas in the grass

Remember to keep your pool cover tightly fitted and elevated to prevent water from accumulating.

Maintaining a Clean Pool Area

Keeping your pool area clean can deter horse flies. Ensure the grass around your pool is well-maintained and that chlorine levels are appropriate for your pool. The CDC recommends maintaining a free chlorine concentration of 2 ppm and pH levels at 7.5 or less.

Also, make sure to remove any debris, such as leaves or dead insects, from the pool and the surrounding area.

Strategically Planting Repellent Plants

Planting repellent plants around your pool can help keep horse flies at bay during the summer months. Several plants are known for their fly-repellent properties:

• Lavender
• Marigolds
• Citronella

Planting these around your pool creates a natural barrier that helps deter horse flies.

By following these simple steps, you can create a more enjoyable swimming pool environment for you and your guests, free of pesky horse flies.

Using Natural Repellents

Essential Oils

Several essential oils can be used as natural repellents to keep horse flies away from your pool area:

• Citronella oil: A popular insect repellant, derived from the leaves and stems of various species of Cymbopogon plants.
• Lavender oil: Known for its soothing scent, it also repels insects like horse flies.
• Eucalyptus oil: It has a strong scent that insects find overwhelming.
• Tea tree oil: Another effective insect repellent, this oil is derived from the Melaleuca alternifolia plant.
• Cedar oil: It has a woodsy aroma that insects dislike.
• Peppermint oil: The cooling scent repels many insects, including horse flies.
• Basil oil: This herb’s potent aroma can ward off various pests.

Add any of these essential oils to a spray bottle with water, and apply it around the pool area. Be cautious about applying oils directly to your skin, as they may cause irritation.

Citronella Candles

Citronella candles are an easy and effective way to keep horse flies at bay. They release the scent of citronella oil when burned, which repels insects naturally.

Pros:

• Affordable
• Easy to use
• Pleasant scent

Cons:

• Need to be regularly replaced
• Limited range
• May not work in windy conditions

Place citronella candles or lamps around the pool to create a barrier that horse flies are less likely to cross.

CO2 Traps

Horse flies are attracted to carbon dioxide (CO2), which they associate with the presence of a host. CO2 traps take advantage of this by emitting CO2 to lure and trap the flies.

Features:

• Attracts horse flies from a distance
• Traps flies for easy disposal
• Can be reusable or disposable

Characteristics:

• Range: Varies depending on trap size and design
• Placement: Position the traps around the perimeter of the pool area
• Maintenance: Check and empty traps regularly

Compare the effectiveness of these natural repellents in the table below:

Using natural repellents such as essential oils, citronella candles, and CO2 traps can help keep horse flies away from your pool area. Choose the method that best fits your needs and budget to help create a more enjoyable swimming experience.

Dealing with Horse Fly Bites

Taking Immediate Action

• Clean the bite: Wash the area with soap and water to reduce the risk of infection.
• Apply ice: Place a cold pack on the bite to ease the pain and swelling.

Recognizing Allergic Reactions

It is important to know the signs of an allergic reaction to horse fly bites, as it may require medical attention. Here are some symptoms to watch for:

• Difficulty breathing
• Swelling of the face, lips, or tongue
• Rapid heartbeat

In case of an allergic reaction, seek immediate medical help.

Painful Bites and Tularemia

Horse fly bites can be extremely painful and may transmit tularemia, a bacterial infection. Here are some common symptoms of tularemia:

• Fever
• Chills
• Headache

Be mindful of these symptoms and consult a doctor if they occur after a horse fly bite.

Comparison Table: Immediate Action vs Allergic Reaction

Remember, it’s essential to take proper care of horse fly bites and be aware of the signs of an allergic reaction to ensure your safety and wellbeing.

Addressing Infestations

Using Bug Zappers and Insecticides

Bug zappers attract and kill flies using ultraviolet light. Here are some pros and cons:

Pros:

• Effective for small areas
• Easy to install

Cons:

• Requires electricity
• May kill beneficial insects

Insecticides help control the horse fly population. Common ones include permethrins and cydectins. Consider:

• Applying near stables, cattle, and rivers for better results
• Always following the manufacturer’s instructions for safe use

When to Call an Exterminator

If the infestation persists, despite using bug zappers and insecticides, it’s time to call an exterminator. They can assess the situation and provide appropriate solutions.

Comparison Table

Additionally, using DEET and other insect repellents can help protect people from horse flies, especially when near infested areas like ponds and rivers.

Understanding Horse Fly Behavior

Attracting and Reproducing Factors

Horse flies are attracted to heat, carbon dioxide, and movement. They are particularly drawn to warm-blooded mammals like horses and humans. Factors that attract horse flies include:

• Heat: They prefer warm environments and are more active during hotter seasons.
• Carbon dioxide: Horse flies detect exhaled carbon dioxide from mammals, which helps them locate their prey.
• Movement: The flies are visually drawn to moving objects, such as a person swimming or a horse running.

Horse flies lay their eggs in moist soil, often near water or in damp, shady areas like bushes. The larvae feed on organic matter and pollen before migrating to dry soil to pupate.

Hunting Methods

Being visual hunters, horse flies rely on their compound eyes to locate prey. Here are some of their hunting methods:

• Warm-blooded mammals: Horse flies prefer to target large animals like horses, but they will also bite humans if the opportunity arises.
• Detection: They use visual cues and chemical sensibility to find their prey.

Comparison of Horse Fly Hunting Methods

Although there are no known specific smells that repel horse flies, some people try using garlic or special repellents to reduce their presence. It’s important to be aware of the factors that attract horse flies and take measures to minimize them around your pool.