I love making natural repellents, and there is some evidence that several plant oils help discourage mosquitoes. The trade-off is that homemade sprays generally don’t last nearly as long as EPA-registered repellents, so you’ll need to reapply them every 30–60 minutes when outdoors.
For bottles and ingredients, I’d recommend:
Amber Glass Spray Bottle Set
You’ll also need:
- Earth’s Aromatique Witch Hazel 250 mL (or another alcohol-free witch hazel)
- NOW Organic Lemongrass Oil 30 mL
- Distilled water
- Vegetable glycerin (helps the oils stay mixed)
- Optional: Vitamin E oil as a natural preservative
Recipe 1 – Refreshing Mint & Eucalyptus Outdoor Spray
Best for adults and older children (over 3 years).
Ingredients (250 mL / 8 oz bottle)
- ½ cup alcohol-free witch hazel
- ½ cup distilled water
- 1 tsp vegetable glycerin
- 12 drops peppermint essential oil
- 10 drops eucalyptus radiata essential oil (gentler than globulus)
- 8 drops lavender essential oil
- 5 drops cedarwood essential oil
Shake before every use.
Spray on clothing, shoes, hats, backpacks and exposed skin (avoiding the face and eyes).
Why these ingredients?
- Peppermint provides a cooling scent.
- Lavender is soothing to the skin.
- Cedarwood is traditionally used to discourage mosquitoes.
- Witch hazel evaporates quickly without drying the skin as much as alcohol.
Recipe 2 – Fresh Lemongrass Vinegar Spray
Using fresh lemongrass stalks is a wonderful idea.
Step 1: Make the infusion
- 3–4 fresh lemongrass stalks
- 2 cups raw apple cider vinegar
- Slice the stalks into small pieces.
- Place into a glass mason jar.
- Cover completely with apple cider vinegar.
- Let steep 10–14 days in a cool dark cupboard.
- Shake daily.
- Strain well.
Step 2: Make the spray
For each 250 mL bottle:
- ½ cup lemongrass vinegar infusion
- ½ cup distilled water
- 1 tsp vegetable glycerin
- 8 drops lemongrass essential oil
- 6 drops lavender
- 6 drops cedarwood
- Optional: 3 drops peppermint
This smells fresh and works well around patios, gardens and evening walks.
Which works better?
Of the two, Recipe 1 will likely perform better because essential oils provide a more concentrated aroma than the infused stalks. The fresh lemongrass version is gentler and smells amazing but generally won’t last as long outdoors.
Babies and children
For babies, I would not rely on homemade essential oil sprays.
The safest approach is:
- a fine mesh mosquito net over the stroller
- lightweight long sleeves and pants
- avoiding dawn and dusk when mosquitoes are most active
For infants younger than about 2 months, physical barriers like netting are preferred over repellents. Oil of lemon eucalyptus/PMD products should not be used on children under 3 years.
For toddlers over 2–3 years, if mosquitoes are abundant or disease risk is a concern, an approved repellent provides more reliable protection than homemade sprays.
Pet-friendly mosquito spray (dogs)
Dogs are much more sensitive to essential oils than people, so use a very dilute mixture. Do not use this on cats, as many essential oils can be toxic to them.
250 mL bottle
- ¾ cup distilled water
- ¼ cup witch hazel
- 1 tsp vegetable glycerin
- 5 drops cedarwood essential oil (Virginia cedarwood)
- 4 drops lavender
- 2 drops lemongrass
Shake well before each use.
Spray lightly onto:
- harness
- collar
- back
- legs
Avoid:
- eyes
- nose
- mouth
- ears
- paws if your dog licks them frequently.
Always do a small patch test first.
If you’re hiking in heavy mosquito or tick areas, I’d actually recommend using a commercial botanical pet spray that has been formulated and tested for animals rather than a homemade version.
One good option is:
or
These are specifically formulated for pets and have more consistent concentrations than DIY mixtures.
For your family, my favourite combination would be:
- Adults: Mint–lavender–cedarwood spray.
- Babies: Mesh stroller netting plus protective clothing.
- Children: Mesh netting whenever possible, with homemade spray only for older children and avoiding the face and hands.
- Dogs: A dilute cedarwood/lavender spray or a commercially formulated pet-safe botanical repellent