11 DIY Fly Repellant Outdoors Ideas: Natural Ways to Keep Flies at Bay
Enjoying outdoor activities is one of life’s greatest pleasures, whether you’re relaxing in your backyard, hosting a picnic, or camping in the wilderness. However, pesky flies can quickly ruin the experience, buzzing around your face, landing on your food, and generally being a nuisance. The good news is that you don’t need harsh chemicals or commercial repellents to keep these insects away. There are plenty of natural, DIY solutions that are eco-friendly, cost-effective, and easy to make.
In this comprehensive guide, we’ll explore 11 creative DIY fly repellant ideas that you can try outdoors. Each method is designed to be simple to implement, safe for your family and pets, and effective at keeping flies at bay. Plus, I’ve included detailed image prompts to help you visualize each idea and inspire your outdoor space makeover.
Let’s dive into these innovative and natural DIY fly repellents!
1. Citronella Candles and Torches
Why it works: Citronella oil is well-known for its fly-repelling properties. Burning citronella candles or torches outdoors creates a fragrant barrier that deters flies and other insects.
DIY Approach:
- Fill clean mason jars or tin cans with soy or beeswax.
- Add several drops of citronella essential oil to the wax before pouring.
- Insert a wick into the melted wax and let it harden.
- Place the candles or torches around your outdoor seating area.
Extra tip: For added effectiveness, surround the area with citronella plants or herbs.
2. Basil and Mint Plant Barriers
Why it works: Both basil and mint emit scents that flies find unpleasant. Growing these herbs around your outdoor space acts as a natural fence against flies.
DIY Approach:
- Plant basil and mint in pots or garden beds around your seating area.
- Crush fresh leaves and rub them on your skin or on your clothes for an aromatic repellent.
- Keep the herbs healthy and regularly harvest to maintain strong scents.
Extra tip: Use hanging pots or vertical gardens with these herbs to maximize space and effectiveness.
3. Apple Cider Vinegar Trap
Why it works: Flies are attracted to the sweet, fermented scent of apple cider vinegar. A simple trap can lure and trap them effectively.
DIY Approach:
- Fill a small jar with apple cider vinegar.
- Add a few drops of dish soap (to break the surface tension).
- Cover the jar with plastic wrap, securing with a rubber band.
- Poke small holes in the plastic with a toothpick or fork.
- Place the trap near your outdoor eating area.
Extra tip: Replace the vinegar and reset the trap every few days for ongoing effectiveness.
4. Lemon and Clove Sachets
Why it works: The strong citrus scent combined with the spicy aroma of cloves confuses and repels flies.
DIY Approach:
- Cut lemons into halves or quarters.
- Insert whole cloves into the lemon pieces.
- Place these sachets in areas where flies gather, such as near trash cans or food tables.
Extra tip: Refresh the sachets every few days for continued effectiveness.

5. Lavender and Eucalyptus Sprays
Why it works: Both lavender and eucalyptus oils are natural insect repellents. When sprayed around your outdoor area, they create a fragrant barrier that flies dislike.
DIY Approach:
- Mix 10-15 drops of lavender and eucalyptus essential oils in a spray bottle filled with water.
- Optionally, add a teaspoon of witch hazel or vodka to help disperse the oils.
- Spray liberally around seating areas, doorways, and trash cans.
Extra tip: Reapply after rain or heavy dew.

6. Garlic Spray Defense
Why it works: The pungent smell of garlic is a natural insect repellent, including flies.
DIY Approach:
- Crush or blend several garlic cloves.
- Boil the crushed garlic in water for 10-15 minutes.
- Let it cool, strain, and pour into a spray bottle.
- Spray around your outdoor space, focusing on problem areas.
Extra tip: Reapply every few days for ongoing protection.

7. Coffee Grounds Barrier
Why it works: Coffee grounds repel insects and can be used as a natural perimeter barrier.
DIY Approach:
- Sprinkle used coffee grounds around your garden or sitting area.
- Replenish regularly to maintain the barrier.
- This also deters other garden pests like ants and slugs.
Extra tip: Combine coffee grounds with crushed eggshells for added pest resistance.

8. Lemon and Eucalyptus Oil Diffuser
Why it works: Diffusing citrus and eucalyptus scents creates an aromatic environment that deters flies.
DIY Approach:
- Fill a small bowl with water.
- Add a few drops of lemon and eucalyptus essential oils.
- Place near your seating area or hang a cloth soaked in the mixture.
- Alternatively, use a portable diffuser if available.
Extra tip: Combine with other repellents for enhanced protection.

9. Vinegar and Herbs Wreath
Why it works: A fragrant wreath made from herbs and vinegar can be hung at entry points to keep flies away.
DIY Approach:
- Soak a wire wreath form with vinegar.
- Attach bundles of herbs like rosemary, lavender, and mint.
- Hang the wreath near doorways or on outdoor walls.
Extra tip: Refresh the vinegar and herbs weekly.

10. Coconut Oil and Essential Oil Lotion
Why it works: Applying a natural lotion with essential oils can help keep flies from landing on your skin.
DIY Approach:
- Mix coconut oil with a few drops of citronella, eucalyptus, or lavender oil.
- Rub onto exposed skin before outdoor activities.
- Reapply as needed.
Extra tip: Use natural, organic coconut oil for skin benefits.

11. DIY Fly-Repel Plant Potions
Why it works: Plant-based solutions brewed into teas or infusions can be sprayed or used as soil drenches to deter flies.
DIY Approach:
- Brew a strong chamomile, basil, or mint tea.
- Let it cool and pour around outdoor plants or spray directly.
- Repeat weekly for ongoing protection.
Extra tip: Use compost tea for plants and insect repellent benefits.

Final Thoughts
Keeping flies away naturally is both eco-friendly and cost-effective. By using these DIY methods, you can enjoy your outdoor space without the annoyance of insects, all while avoiding harmful chemicals. The key is consistency—reapply or refresh your repellents regularly, especially after rain or heavy dew.
Experiment with different combinations of these ideas to see what works best for your outdoor environment. Whether it’s planting fragrant herbs, creating DIY traps, or diffusing essential oils, you can tailor these solutions to suit your space and preferences.
Remember: Safety first. Always test homemade repellents on a small skin patch before extensive use, and keep essential oils out of reach of children and pets.
Image Prompts Summary:
- Citronella candles: Cozy patio with flickering candles.
- Herb garden: Potted basil and mint with a picnic.
- Vinegar trap: Small jar with plastic wrap, with flies.
- Lemon and clove sachets: Hanging sachets with vibrant colors.
- Essential oil spray: Spraying outdoor seating area.
- Garlic spray: Backyard with garlic bulbs and spray bottle.
- Coffee grounds: Garden edge with sprinkled grounds.
- Diffuser: Small diffuser emitting mist outdoors.
- Vinegar herb wreath: Hanging wreath decorated with herbs.
- Lotions: Applying coconut oil blend outdoors.
- Herbal tea: Watering plants with brewed herbal tea.
Enjoy your bug-free outdoor adventures with these natural, DIY fly repellents! If you try any of these ideas, share your results and photos to inspire others in your outdoor community. Happy and pest-free outdoor living!