The Science Behind Why Certain Scents Repel Mosquitoes

Some fragrances including citronella, eucalyptus, lavender, and lemongrass contain dangerous chemical substances that repel mosquitoes. These odours disrupt the mosquito’s ability to sense carbon dioxide and other human attractants, so the insects do not even know we are there.

An effect of these scents is contingent upon concentration, the way of dispatch, and the environment. Topically antimicrobial EOs when applied, diffused and burned in a candle have the power to form a protective large area zone. Yet their deterrent effect is usually short lived and it dissipates rapidly in windy or open conditions.

Given that there is no substantive evidence, these smelly ways need to be used in combination with other methods of deterrence. Other strategies - like screens, mosquito nets, protective clothing, and nontoxic chemical repellents - contribute to the collective defense. Knowledge on the science of odour-based repellents, will empower home owners to take the right decision for the controlling mosquitoes.