Citronella candles, essential oils and old coffee grounds are all effective ways to ward off mosquitoes. Homeowners can also plant naturally repellent herbs to reduce mosquito infestation.
Citronella, lemongrass, basil, lavender and rosemary all naturally repel mosquitoes. Homeowners with a garden area can plant these herbs around their porches and decks to ward off mosquitoes. Individuals can also burn diluted essential oils in an aromatherapy diffuser.
Citronella candles on tables or around deck and patio areas also reduce mosquito infestation. These candles are available at most home improvement stores.
Mosquito coils are slow-burning incense coils made from the dried heads of chrysanthemum flowers.
Sprinkling old coffee grounds around deck and patio areas can also reduce mosquito activity in these areas.