Dealing with flies on your back porch can turn a pleasant summer evening into a battle. If you want to enjoy your yard and outdoor activities without constantly swatting at these pests, you’ll need to figure out the best approaches to keep them away. Flies are not only annoying, but they also pose a health risk by spreading diseases and contaminating food. Luckily, there are multiple strategies you can use to reduce their presence and reclaim your space.
Start by identifying what causes flies to gather in the first place. Flies are drawn to food sources, breeding areas, and moisture, so your goal should be to eliminate these attractants. First, clean up any leftover food, trash, or garbage bins. Make sure your bins have tight-fitting lids and are regularly cleaned out to avoid rotting food and odors that draw flies. Remove decaying plants, and pick up pet feces often, as these are prime breeding grounds for flies. Any stagnant water around the porch, whether from rain or pooling areas, can also attract flies, so be sure to drain or cover any water sources.

Figuring Out How to Eliminate Flies Outside
One of the most effective ways to get rid of flies is by using DIY fly strips or setting up traps. You can easily make your own fly strips using scented oils like clove, lavender, or citronella, which work well as natural repellents. For an extra boost, try using apple cider vinegar in a container with a little dish soap. The vinegar will attract the flies, and the soap will cause them to sink and die. Another option is setting up inverted cone traps filled with fly attractants, which can help lure flies away from your porch.
When flies are especially bad, you can also light citronella candles around your porch. The smoke and aromatic oils released by the candles act as a repellent, helping to keep flies at bay while you’re relaxing outside. Additionally, setting up an oscillating fan near your picnic table or grill can create a strong breeze that flies have trouble maneuvering through. This is a simple but effective way to prevent flies from hovering around your food during outdoor gatherings.
What Do Flies Look Like?
To understand how to tackle your fly problem, it’s helpful to know more about the common insect that’s invading your space. The ordinary housefly (also known as Musca domestica) is a small fly with bulging eyes, a gray body, and dark stripes along its thorax. These flies, along with fruit flies (or Drosophila melanogaster), are most often responsible for the infestations you see in your backyard. Fruit flies are typically tiny and yellowish, with transparent wings and bright red eyes. Both types of flies hatch from eggs laid in clusters, and within a short period, they mature into adult flies, ready to spread throughout your yard.
Signs of Fly Infestation
If you start noticing clusters of flies on your porch or around your house, you may be dealing with a growing infestation. Watch out for tiny, pinhead-sized spots known as flyspecks on surfaces like windows, walls, or countertops. These are usually made up of fly excrement or food remnants. Additionally, if you see large swarms of flies, particularly near garbage bins, rotting food, or manure, it’s a sign that flies have found a suitable breeding site. The higher the number of flies, the more likely there’s a major source nearby.

Eliminate Food Sources and Breeding Areas
To get rid of flies for good, you need to tackle their breeding areas and food sources. Start by regularly cleaning up your porch and yard, removing any leftover food, and ensuring that your compost and trash bins are well-sealed. If you have pets, make sure to pick up their feces right away, as flies are attracted to animal waste for laying eggs. Also, check for moisture buildup in your yard or near your porch, as flies love damp environments. Eliminating any standing water will help prevent them from gathering and breeding.
Seal Buildings and Outdoor Spaces
Flies can easily find their way into your home if there are cracks or gaps in your buildings. To prevent this, make sure to seal any cracks in your windows, doors, or walls. Use well-maintained screens to cover windows and doors, especially in areas like sheds, garages, or outdoor kitchens. This will help keep flies away from entering your living spaces.
Encourage Natural Predators
If you’re looking for a natural solution to control flies, consider attracting predators like birds, bats, or frogs to your yard. Birds can help by feeding on adult flies, while bats, which are night hunters, consume large numbers of flies during the evening. You can set up birdbaths or hang birdhouses around your property to encourage these helpful creatures. Similarly, amphibians like frogs can be useful in gardens to control flies and other insects.
Trap the Flies
For more targeted fly control, set up fly traps around your porch. Inverted cone traps, fly paper, and ultraviolet light traps are all great options for trapping and killing flies before they become a problem. Place these traps near garbage cans, manure piles, or areas where animals sleep, as flies often congregate in these spots. If you’re using insecticide-impregnated traps, be sure to keep them away from food preparation areas or places where people gather.

Use Fans and Light Candles
If you want a more hands-off approach, consider using fans or light candles to repel flies. Oscillating fans are great for outdoor spaces because they create strong breezes that flies struggle to navigate. Set up a fan near your seating area or grill to keep flies from bothering you while you enjoy your time outdoors. Alternatively, lighting citronella candles can create a barrier against flies. The scent and smoke released by the candles effectively repel flies and other insects.
Make DIY Fly Strips
A simple and affordable way to keep flies off your porch is by making DIY fly strips. Soak pieces of cloth or paper in scented oils like lavender, mint, or eucalyptus and hang them around your porch. These natural scents are effective at repelling flies, and they’re a great chemical-free option to protect your outdoor space. You can also tie the strips to tree branches or porch railings to create a fly-free zone.
Trap Flies With Apple Cider Vinegar
One of the most popular home remedies for catching flies is the apple cider vinegar trap. Flies are attracted to the acetic acid in the vinegar, which mimics the smell of fermenting fruits. Simply fill a bowl with a mix of apple cider vinegar and dish soap. The vinegar will lure the flies in, and the soap will break the surface tension, causing them to sink and drown. You can also use a soda bottle with a funnel to trap them, making this an easy and effective method.
What Causes Flies Outdoors?
Flies are drawn to outdoor locations where they can find food, moisture, and a place to breed. Decaying plant material, animal excrement, and carcasses are all prime attractants. Flies thrive in darkness, and the presence of moist surfaces only enhances their ability to breed and hatch. If you have fertilizers, manure, or a compost pile near your home, these can act as magnets for flies. Leaky pipes or other sources of water can also attract them to your property, so it’s important to fix these issues as soon as possible.

How to Prevent Flies Outdoors
To prevent a fly infestation, it’s essential to deny them access to their primary attractants. Keep your trash bins tightly closed and clean, avoid leaving food uncovered, and regularly check for sources of moisture. Switching out white lights for insect-resistant yellow bulbs can also make a big difference, as flies are less attracted to yellow light.
Using Traditional Spray Pesticides
If natural methods aren’t working, you may need to turn to traditional spray pesticides as a last resort. However, flies can become resistant to certain insecticides, making them harder to control. For temporary relief, you can use a fogger or spray around your outdoor areas, but be sure to read the product label carefully and avoid areas where children or pets play.
How to Use Ultraviolet Light Traps
Ultraviolet (UV) light traps are another effective solution for keeping flies off your porch. These traps use UV light to attract flies, which are then eliminated upon contact. Place these traps in areas where flies tend to gather, such as near manure piles or trash cans. While these traps are especially useful in alleyways or under trees, they can also work well on your porch to reduce the fly population.
What Are the Best Fly Traps for Outdoor Use?
When it comes to fly traps, there are many options available. Inverted cone traps filled with fly attractants work well but can be quite smelly, so place them away from occupied structures. Resin strips, also known as flypaper, can be used on the inside of garbage can lids to trap flies. They can also be effective in dumpsters or around areas where flies gather.
When to Call a Professional to Treat a Fly Infestation
In cases where flies have become unmanageable, it may be time to call in a professional. Flies can spread serious diseases like cholera, salmonella, typhoid, and other infections that can be harmful to your family. If you notice a significant infestation that seems to be getting worse, a professional pest control service can help eliminate the problem effectively. They have access to restricted products and advanced techniques that can quickly tackle a fly infestation. Before hiring a service, check their reputation and ensure they use methods that are safe for your home, children, and pets.
In addition to these methods, always remain vigilant. Regularly clean your outdoor spaces, check for any signs of fly activity, and implement preventive measures. With a combination of cleaning, trapping, and natural deterrents, you can successfully combat flies and create a more enjoyable outdoor environment.
Overview of Key Strategies
- Eliminate Food Sources: Clean up food, garbage, and pet waste to reduce attractants.
- Seal Buildings: Close cracks and use screens to prevent flies from entering.
- Encourage Natural Predators: Attract birds and bats to help control fly populations.
- Trap the Flies: Use DIY traps and commercial options to catch flies.
- Use Fans and Light Candles: Keep flies away with strong breezes and repellant scents.
- Make DIY Fly Strips: Create effective fly traps using scented oils.
- Trap Flies With Apple Cider Vinegar: Use vinegar traps to lure and drown flies.
- Prevent Outdoors: Maintain cleanliness and prevent moisture buildup to deter flies.
- Use Traditional Spray Pesticides: As a last resort, apply pesticides carefully.
- When to Call a Professional: If infestations worsen, seek professional help.
People Also Asked
How to keep Flies away from Food Outdoors?
To keep flies away from food outdoors, make sure all food is covered and clean up any spills immediately. Set up fans to create a breeze that makes it hard for flies to hover near your food. You can also use citronella candles to help repel them.
How to keep Flies off Porch?
Keeping flies off your porch requires a combination of sealing cracks, using DIY fly strips with essential oils, and setting up UV light traps. Regular cleaning and removing any standing water can also help reduce the number of flies.
How to keep Flies away from Patio?
To keep flies away from your patio, light citronella candles and set up an oscillating fan. Make sure to clean up food scraps and cover garbage bins with tight-fitting lids. Flies struggle in breezy conditions, so a fan is an excellent deterrent.
What Oils Repel Flies?
Essential oils like clove, lavender, lemongrass, citronella, eucalyptus, rosemary, and mint are known to repel flies. Soak strips of cloth in these oils and hang them around your porch to keep flies at bay.
What Plants to keep Flies away Outside?
Plants such as lavender, rosemary, and lemongrass can help keep flies away. Placing these plants around your porch or garden can naturally repel flies and enhance your outdoor environment.