As temperatures soar above 30C across the UK, many people are spending more time in their gardens. However, the warm weather also brings an unwelcome influx of flies, midges, and mosquitoes. While chemical insect repellents remain popular, one skincare expert says two natural ingredients could help keep the pests at bay when you're relaxing outdoors.
Expert recommends citronella and lavender essential oils
According to Benjamin Borseth, Managing Director at natural skincare specialists Aromantic, citronella and lavender essential oils are among the most effective natural scents for discouraging flying insects. He explained that the oils work by masking the scents that insects use to find people.
"Strong-smelling essential oils can help mask scents that attract insects, which is why they are often used in natural summer blends," Benjamin said. "For example, citronella has such a strong scent that it can temporarily disrupt a mosquito's scent receptors, effectively masking humans. Meanwhile, flies hate lavender because it has a high concentration of linalool, which is a chemical compound that acts as a powerful sensory deterrent."
How essential oils work against different pests
Citronella has long been used in candles and outdoor products designed to ward off mosquitoes and midges, while lavender is often recommended to help deter flies thanks to its strong floral aroma. Other essential oils commonly associated with repelling insects include peppermint, which is often used against ants; rose geranium, which may help deter ticks; and cedarwood, which is sometimes used to keep moths away.
Common mistake: applying essential oils directly to skin
However, Benjamin warned that many people make one common mistake when using essential oils: applying them directly to their skin without proper dilution. "One of the most common mistakes people make is applying essential oils directly to the skin without proper dilution," he said. "Essential oils are highly concentrated and should always be diluted in a carrier oil before topical use."
Using undiluted essential oils can cause skin irritation, redness, and increased sensitivity, particularly during hot weather when skin is already more vulnerable. Benjamin added: "Just because something is natural doesn't mean it is safe to apply directly to the skin."
Tips for using essential oils effectively
To get the best results, Benjamin recommends always diluting essential oils before applying them to the skin, using them consistently rather than as a one-off treatment, reapplying them regularly when spending long periods outdoors, and combining them with physical protection where possible. "When used correctly, essential oils can be a useful addition to summer routines, but understanding their limitations is just as important as knowing their benefits," he said.
While essential oils won't guarantee an insect-free garden, they may provide a natural alternative for those looking to make outdoor dining, barbecues, and evenings in the garden a little more comfortable during the hot weather.
