Make a Homemade Insecticidal Soap Spray – Mother Earth News

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Photo courtesy MATTHEW STALLBAUMER

Fels-Naptha soap, available at grocery stores, is an effective non-toxic insecticide.

This insect repellent spray is economical and environmentally safe for indoors or in the garden. You can use it for soft-bodied insects, such as aphids, and for small sugar ants.

To make the insecticidal soap spray, shave a quarter of a bar of Fels-Naptha laundry soap (about 1 inch) into 1 quart of heated water and stir until dissolved. This will be your insecticidal soap concentrate. Put the soap solution in a labeled jar.

To use the soap spray, put 1 teaspoon of concentrate per liter in a spray bottle. This insecticidal soap is a contact poison, so spray it directly on the insects you want to eliminate from your home, garden or orchard. For extra killing power, add a quarter cup of rubbing alcohol per quart.

Published on June 1, 2007

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