Natural Pesticides: Garlic and Chile Insecticidal Soap Spray

In this insecticidal soap spray, garlic and chile are used to deter common pests.


  • Fend off pesky insects with this Garlic and Chile Insecticidal Soap Spray.
    Photo by Mina/Fotolia

Susan has been making this Garlic and Chile Insecticidal Soap Spray for more than 20 years. In late summer, she routinely sprays this on plants before bringing them indoors for winter. Tina adds 10 drops cinnamon, vetiver or eucalyptus essential oil when she makes it.

• 10 to 12 large cloves garlic
• 4 to 6 hot chile peppers, dried or fresh
• Generous 2 cups water
• 1 tablespoon liquid castile soap 
• 10 drops cinnamon, vetiver or eucalyptus essential oil, optional

1. Put garlic, chiles and water into a blender and puree contents until foamy.

2. Let mixture stand at least 2 hours or overnight. When mixture settles, you will have a coral-colored liquid with sediment at bottom.



3. Pour through a strainer lined with fine cheesecloth (or through a coffee filter or jelly bag) to remove particles that could block the sprayer valve.

4. Pour concentrate into a jar with a plastic lid (not metal), add soap, stir and label.



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