how to get rid of flies in backyard

Introduction

Flies can turn a relaxing afternoon in your backyard into an irritating experience. They hover around food, buzz near your face, and can even spread bacteria. The good news: you can dramatically cut down fly numbers with a combination of targeted removal, sanitation, and prevention.

This guide explains why flies are attracted to your backyard, then walks through proven methods, natural remedies, and simple prevention tips. Use several of these strategies together for the best long-term results.

Why Flies Appear in Your Backyard

Flies don’t show up at random. They’re drawn by three main things: food, moisture, and shelter.

1. Food Sources

• Open garbage: Uncovered trash cans, overflowing bags, or bins with food residue.
• Pet waste: Dog or cat droppings left on the lawn are prime breeding sites.
• Compost and yard waste: Exposed fruit/vegetable scraps and grass clippings attract flies.
• Outdoor cooking and dining: Grills with burnt-on food, dirty dishes, and uncovered plates.

2. Moisture and Standing Water

• Overwatered lawn or plants: Constantly damp areas attract some fly species.
• Clogged gutters: Wet decomposing leaves are a food and breeding source.
• Uncovered rain barrels or buckets: Standing water plus organic debris is ideal for insects.

3. Shelter and Breeding Sites

• Thick vegetation: Dense bushes, weeds, and tall grass offer shade and rest sites.
• Debris piles: Wood, leaves, or junk piles hold moisture and organic material.
• Animal areas: Chicken coops, barns, and kennels produce manure and shelter.

Once you know what attracts flies, you can remove or reduce those things and make your backyard far less inviting.

5 Proven Methods to Get Rid of Flies in Your Backyard

The most effective approach is to combine multiple strategies. Below are five methods that consistently work when used correctly.

1. Eliminate Food and Breeding Sources

This is the foundation of fly control. If you don’t remove what attracts flies, traps and sprays will only offer temporary relief.

• Secure garbage properly:
  • Use trash cans with tight-fitting lids.
  • Rinse cans periodically with soapy water and a bit of bleach or vinegar.
  • Place garbage as far from seating and play areas as possible.
• Clean up pet waste daily:
  • Pick up droppings at least once a day, more often in hot weather.
  • Seal waste in bags before placing in the trash.
• Manage compost correctly:
  • Use a closed compost bin rather than an open pile.
  • Cover food scraps with dry leaves or soil to mask odors.
  • Avoid adding meat, dairy, or oily foods that heavily attract flies.
• Clean after outdoor meals:
  • Wipe tables immediately after eating.
  • Bring dirty dishes indoors instead of leaving them outside.
  • Scrub grill grates and drip trays regularly.

2. Use Commercial Fly Traps Strategically

Commercial traps are effective when placed correctly and maintained. They don’t replace sanitation but significantly reduce numbers.

• Bag-style baited traps:
  • Hang them 15–30 feet away from where people sit or eat. They smell bad but attract flies away from you.
  • Place them in sunny areas; heat helps release the attractant odor.
  • Replace according to manufacturer instructions or when full.
• Sticky fly ribbons and boards:
  • Hang under eaves, pergolas, or porch ceilings where flies rest.
  • Keep out of reach of children and pets; the glue is very sticky.
  • Change them when they’re mostly covered in insects or dust.
• UV light traps (for covered areas):
  • Use in covered patios or garages where they can stay dry.
  • Position them away from competing light sources.
  • Clean collection trays and replace bulbs as directed.

3. Apply Outdoor-Safe Insecticides (When Needed)

If you have a severe fly problem—especially around livestock or large yards—targeted insecticide use can help. Always read labels and follow safety instructions.

• Residual sprays:
  • Apply to surfaces where flies rest: fences, walls, the outside of sheds, and under eaves.
  • Choose products labeled for outdoor fly control and safe around pets once dry.
  • Avoid spraying flowers to protect pollinators.
• Bait granules:
  • Sprinkle in areas where flies congregate but away from children, pets, and wildlife.
  • Use only products specifically labeled for flies and outdoor use.

Insecticides should be a supplement, not your main strategy. Overuse can harm beneficial insects and doesn’t fix the underlying causes.

4. Improve Drainage and Reduce Moisture

Many fly species need moist areas to breed and feed. Drying out problem spots cuts their numbers significantly.

• Fix standing water:
  • Empty buckets, plant saucers, and toys that collect water.
  • Cover rain barrels with fine mesh screens.
  • Clear clogged gutters and downspouts.
• Adjust irrigation:
  • Water deeply but less frequently instead of light daily watering.
  • Check for leaks in hoses or irrigation lines.
  • Fill low spots in the yard where water sits after rain.
• Clear soggy debris:
  • Remove piles of wet leaves, grass, or mulch.
  • Thin overly dense plantings to improve air circulation and drying.

5. Create a “Fly-Free Zone” for Dining and Relaxing

While you work on long-term control, designate a specific area where you actively keep flies away.

• Use physical barriers:
  • Install screens around pergolas or gazebos (screen curtains or mesh panels).
  • Use table food covers (mesh domes) to protect dishes.
• Set up localized repellents:
  • Use oscillating fans; flies dislike moving air and have trouble flying in it.
  • Place safe, baited traps on the perimeter of the seating area, not on the table.
• Keep the area clean:
  • Clear plates and trash promptly.
  • Wipe spills right away, especially sugary drinks and sauces.

Natural Remedies to Repel and Reduce Flies

If you prefer low-chemical or DIY options, use these natural methods. They work best when combined with good sanitation.

1. Fly-Repelling Plants

Some plants are known to discourage flies with their strong scents. They won’t solve a big infestation but help around seating and doors.

• Basil: Plant in pots on tables or near doors.
• Lavender: Ideal for borders and containers; also attractive in the garden.
• Mint (in pots): Strong scent; keep in containers to prevent spreading.
• Rosemary and thyme: Good near grills and outdoor kitchens.
• Marigolds: Add around patios; they deter various insects.

Group these plants around sitting areas for maximum effect.

2. DIY Vinegar and Dish Soap Traps

These simple indoor-style traps also work in sheltered outdoor areas.

• How to make:
  • Pour about 1/2 cup of apple cider vinegar into a jar or bowl.
  • Add a few drops of dish soap (this breaks the surface tension so flies sink).
  • Cover with plastic wrap and poke a few small holes, or leave uncovered in areas protected from pets.
• Where to place:
  • Near compost bins, close to doors, or in outdoor kitchens.
  • Out of reach of small children and pets.

3. Essential Oil Sprays (Short-Term Repellent)

Essential oils can repel flies for a short time, especially in small areas like patios.

• Common fly-repelling oils: Eucalyptus, citronella, peppermint, lemongrass, lavender.
• Simple spray recipe:
  • Fill a spray bottle with water.
  • Add 10–15 drops of essential oil per cup of water.
  • Shake well before each use.
  • Lightly mist outdoor furniture and around seating areas (test on a small area first).
• Important: Don’t spray directly on pets or skin without checking safety; some oils can irritate animals.

4. Homemade Sugar Water Bottle Traps

These traps attract and capture flies away from your sitting areas.

• How to make:
  • Cut the top third off a plastic bottle.
  • Mix water with sugar (and optional yeast) and pour into the bottom part.
  • Invert the top part like a funnel and tape it to the bottom section.
  • Flies enter through the funnel and struggle to escape.
• Placement:
  • Hang or set the trap away from the area where people gather.
  • Replace the solution every few days or when full of insects.

Prevention Tips: Keep Flies Away Long-Term

Once you have the fly population under control, focus on making your backyard less attractive to them overall.

1. Maintain a Regular Cleaning Routine

• Empty outdoor trash cans before they overflow.
• Rinse garbage bins monthly (or more often in hot weather).
• Pick up pet waste daily.
• Remove fallen fruit under trees promptly.
• Clean outdoor cooking and eating areas after each use.

2. Manage Yard and Landscaping

• Keep grass at a reasonable height and trim weeds.
• Thin dense shrubs and hedges so air can circulate.
• Remove or reduce debris piles (wood, leaves, junk).
• Store firewood off the ground and away from the house.

3. Protect Entry Points to Your Home

• Repair torn window and door screens.
• Install self-closing hinges or screen doors where possible.
• Use door sweeps on exterior doors to close gaps.

4. Plan Outdoor Gatherings Strategically

• Set food out just before serving instead of leaving it out for hours.
• Use lids, mesh covers, or containers to protect dishes.
• Position trash cans farther from the dining area, with lids closed.
• Set up fans around the table to create a breeze flies avoid.

5. Address Nearby High-Risk Areas

• If you have livestock, clean stalls and pens regularly.
• Use appropriate manure management (covered storage, regular removal).
• Coordinate with neighbors if their garbage or animals are contributing to your fly problem.

FAQ

1. What is the fastest way to get rid of flies in my backyard?

Combine three steps at once: secure and clean all garbage and pet waste, hang baited fly traps away from seating areas, and run fans around where people gather. This combination reduces flies quickly while you work on long-term sanitation and moisture control.

2. Why are there so many flies all of a sudden?

Fly populations spike in warm weather and after breeding cycles. A sudden increase usually means there’s a new or overlooked food source, such as a dead animal, overflowing garbage, pet waste, or wet organic debris. Inspect your yard carefully for anything rotting or unusually damp.

3. Do citronella candles really work against flies?

Citronella candles offer mild, short-range repellent effects. They may reduce flies slightly right next to the candle but won’t solve a larger backyard problem. Use them as a small part of your strategy, not your main method.

4. Are homemade fly traps as effective as store-bought ones?

Homemade traps (like vinegar or sugar water bottles) can catch a good number of flies if placed correctly and refreshed regularly. However, commercial baited traps are usually more powerful and designed to attract flies from a wider area. Using both types together often works best.

5. How do I keep flies away from my outdoor dining table?

• Cover food with lids or mesh domes.
• Place baited traps 15–30 feet away from the table.
• Use fans to create a constant breeze.
• Clear dishes and trash promptly when people finish eating.

6. Are fly sprays safe around kids and pets?

Some outdoor fly sprays are labeled safe once dry, but always read the label carefully. Apply only to recommended surfaces, keep children and pets away until products are dry, and avoid spraying where they frequently play or lie down. If you’re concerned, prioritize non-chemical methods and consult a pest professional if needed.

7. How long does it take to see results?

You can see fewer flies within a day or two after removing food sources and setting traps. For long-term control—especially if there were breeding sites—it may take a couple of weeks of consistent cleaning, moisture control, and trap maintenance to dramatically reduce the population.

8. When should I call a professional pest control service?

Call a professional if:

• You’ve removed obvious attractants and still have heavy fly activity.
• You suspect a dead animal in a wall, crawl space, or inaccessible area.
• You manage livestock or large properties where flies are severe and persistent.

Professionals can identify the exact species, locate hidden breeding sites, and apply targeted treatments safely.

By combining sanitation, strategic traps, and simple preventive habits, you can turn your backyard into a much more comfortable, low-fly zone for everyday use and outdoor gatherings.