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Alternatives to chemical-based sprays or creams include repellents with plant-based ingredients such as citronella, lavender and peppermint.

For example, the Greater Los Angeles County Vector Control District says citronella candles are effective at repelling mosquitoes only in the immediate radius around the candle, and only in the absence of a breeze.

These include citronella and a few other geranium varieties, marigolds, lemongrass, catnip, certain types of mint, lavender and lantana.

That being said, if you’re going to the playground with your child for 30 minutes, Leal says that citronella spray — which is distilled from grass varieties — should work just fine.

Also consider having citronella candles to keep insects at bay while adding a pleasant scent to the air.