5 Insect Repellents to Keep Bugs at Bay

These picks are safe for kids, pets, and the planet when used properly.
These picks are safe for kids, pets, and the planet when used properly.

These picks are safe for kids, pets, and the planet when used properly.

1. Allethrin Lamps
Allethrin lamps (like ThermaCELL, $30, and OFF!, $10) use a butane cartridge or flame, respectively, to activate the chemical repellent.

Pros: Typically, 93% to 99% of mosquitoes and sand flies steer clear of a 15-foot area for up to four hours on each refill mat. Lamps are attractive and unobtrusive.

Cons: Refills cost $5 to $6. Keep an eye on the flame version, especially around children and pets.

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2. Geraniol Candles
Geraniol candles (like those from Koolatron, $10) disperse a plant-derived repelling scent.

Pros: Five times better than citronella, it repels more than 80% of mosquitoes and 70% of sand flies for up to 10 feet. A one-pound candle lasts 50 hours.

Cons: With candles, the open flame poses a risk. While most people find the smell pleasant, some won't like it.

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3. Metofluthrin Diffuser
Metofluthrin diffuser (by OFF!, $8) uses a fan to disperse a chemical that fends off mosquitoes -- no flame needed.

Pros: On average, one disc gives 84% to 100% protection against mosquitoes for up to 12 hours.

Cons: It's not shown to work against biting insects other than mosquitoes. Refills cost $5.

4. BTI Briquettes
BTI briquettes (like those by Summit, $21.50 for 20) use a bacterium found in soil that kills mosquito larvae before they hatch.

Pros: After adding them to standing water (a pond or unused pool), mosquito population is cut more than 90% in 48 hours and up to 85% for 28 days.

Cons: While these will significantly reduce the mosquitoes that hatch, they don't repel any remaining ones: No guarantee the neighbor's bugs won't come to visit.

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5. Garlic Liquids and Granules
Garlic liquids and granules (like Mosquito Barrier liquid, $22, and Dr. T's granules, $14) use garlic, a natural bug repellent.

Pros: More than 90% of mosquitoes stay away for up to one month after application to foliage. May also work against ticks, fleas, and blackflies.

Cons: The initial strong smell might offend sensitive guests. Also, the more pungent liquid formula requires dilution, which is a time-consuming process.

- The Good Housekeeping Research Institute

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