6 Pests That Are Repelled by Lemongrass (and the Best Ways to Use It)

Ouadie Rhabbouron

4. Ticks and Fleas

If you have pets or spend time in grassy areas, ticks and fleas are more than just a nuisance – they can transmit disease. Fortunately, lemongrass is a natural deterrent for both.

Citronella and geraniol compounds in lemongrass mask the scent of animal fur and human skin that attracts these biting parasites.

How to Use Lemongrass to Repel Ticks and Fleas:

  • DIY pet spray: Mix 1 cup of distilled water, 1 tablespoon of apple cider vinegar, and 10 drops of lemongrass essential oil. Lightly mist your pet’s fur (avoid face and eyes).
  • Yard perimeter planting: Plant lemongrass along fences or paths where pets play. The scent acts as a natural barrier.
  • Add to shampoo: Add 2–3 drops of lemongrass essential oil to pet shampoo for extra protection and a fresh scent.

Consistent use can help prevent infestations naturally – no harsh chemicals required.

5. Whiteflies

In the garden, whiteflies are tiny but destructive. They suck sap from plants, causing yellowing leaves, stunted growth, and reduced yields.

Lemongrass’s natural aroma deters them and prevents them from settling on nearby plants.

How to Use Lemongrass to Repel Whiteflies:

  • Companion planting: Plant lemongrass near tomatoes, peppers, and beans – common whitefly targets.
  • Homemade spray: Steep chopped lemongrass leaves in hot water for 24 hours. Strain and spray onto affected plants. The mild solution won’t harm crops but will repel whiteflies effectively.
  • Mulch barrier: Scatter dried lemongrass leaves around plant bases. The scent and oils act as a natural deterrent.

This method also helps deter aphids, another sap-sucking pest that damages soft-stemmed plants.

6. Gnats and No-See-Ums

Gnats and tiny biting midges can make gardening or outdoor dining unbearable. Luckily, these little pests can’t tolerate lemongrass’s intense scent.

How to Use Lemongrass to Repel Gnats:

  • Candle or diffuser: Use lemongrass-scented candles or oil diffusers around patios and doorways.
  • Topical spray: Combine 10 drops of lemongrass oil, 10 drops of lavender oil, and 2 tablespoons of coconut oil. Apply to wrists, ankles, and neck before going outside.
  • Pot plants near doors: Keep potted lemongrass near entryways to prevent gnats from sneaking indoors.

This simple setup keeps your outdoor evenings comfortable and bite-free.

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