Does Crushing the Leaves Matter?
Yes.
Much of a plant’s fragrance is released when oil-containing tissues are disturbed.
An untouched plant may release less of the aromatic compounds that are often associated with repellent effects.
Do Not Rub Unknown Plant Oils Directly Onto Skin
Even edible herbs can cause skin irritation in certain people.
Do a small patch test before using any plant material extensively on the skin, and do not assume homemade preparations provide dependable mosquito protection.
4. Lemongrass
Lemongrass is one of the plants most commonly associated with natural mosquito-control discussions.
It has
a strong citrus scent and contains aromatic compounds such as citral.
Lemongrass should not be confused with every product labeled citronella, however.
Lemongrass vs. Citronella Grass
Lemongrass and citronella grass are related aromatic grasses but are not identical plants.
Citronella grass is commonly associated with citronella oil used in candles and outdoor repellency products.
Lemongrass has its own aromatic profile and is also widely grown as a culinary herb.
Where to Plant Lemongrass
Lemongrass generally performs best in:
Warm conditions
Full sun
Well-drained soil
Containers in colder climates where it can be moved indoors
It can grow quite large during a warm season, so allow enough space.
Do Citronella Candles Eliminate Mosquitoes?
Citronella products can reduce mosquito activity in the immediate area under some conditions, but their effectiveness varies with wind, distance, product concentration, and mosquito species.
They should not be relied upon as the only protection where mosquito bites
