Say bye-bye to bugs and chemical insecticides. Folklore and anecdotal evidence have long supported the use of nontoxic essential oils, spices, and powders to repel insects.

Now research shows that some plant oils combat pests as well as DEET does -- without harming your health.

For all spray-on applications, dilute 20 drops of essential oil with 1 cup of grape-seed oil and 1 1/2 cups of purified water; shake well.

The Bug: Ants

The Remedy:

Peppermint essential oil or citronella essential oil

The Technique:

Use 3 to 5 drops on windowsills, doorways, and under kitchen sink.

The Bug: Blackflies

The Remedy:

Cinnamon oil or turmeric oil

The Technique:

Spray or dab on clothing and exposed skin.

The Bug: Cockroaches

The Remedy:

Citrus oil, especially kaffir lime oil

The Technique:

Spray on problem areas (e.g., under kitchen sink).

The Bug: Mosquitoes

The Remedy:

Catnip oil or thyme oil

The Technique:

Spray or dab on clothing and exposed skin.

The Bug: Ticks

The Remedy:

Lemon-eucalyptus oil

The Technique:

Spray or dab on clothing and exposed skin.

First Published: June 2009