human
I've heard that a good way to keep the bugs away is to burn a citronella candle. Is this true?
assistant
Yes, it's true! Citronella candles are made from a plant called Cymbopogon nardus (also known as lemon grass). The oil in the plant is extracted and used in many products such as soaps, perfumes, and candles. Burning these candles can help repel mosquitoes because the smell of the oil is very strong and unpleasant for them.