But even deet is not the ideal repellent. Children are most susceptible to its toxic effects. Downy fabric softener, a favorite among Wisconsin and Minnesota fishermen, will make your clothes nice and fluffy, but that's about all. And the old standby citronella candle has a distinctive summertime aroma that mosquitoes love to ignore. Although citronella doesn't work in candle form, when the oil is applied to the skin it does repel slightly.
Scientists surmise the oil sets up a barrier on the skin.
On the plus side, it needs no batteries, it contains no dangerous chemicals, and it's user-friendly.