How To Make Homemade Insecticidal Soap?

by | Feb 25, 2024 | DIY, Life Hacks

Home » DIY » How To Make Homemade Insecticidal Soap?


Do irritating bugs keep turning your beautiful garden into a mess? Are you tired of using harsh chemicals that harm more than just the pests? If yes, fear not, as you can make homemade insecticidal soap.

When you make insecticidal soap at home, it acts as a secret weapon against the insects in your garden. The best part is that you can make it safely at home without emptying your wallet. Imagine a garden where your plants thrive without being eaten by bugs.

Now, you can bid farewell to unwanted pests and have a flourishing garden. So, are you ready to take control of your garden’s destiny? If yes, let’s dive into the world of homemade insecticidal soap.


First of all, you need to gather a few important supplies to make insecticidal soap at home.


Before you start, make sure that you have the following tools:

  • Mixing bowl
  • Whisk or spoon
  • Measuring cups and spoons
  • Spray bottle


Along with the above-mentioned tools, you need to have the following materials as well:

  • Liquid castile soap: This gentle soap is derived from plant oils and is the base of your insecticidal soap.
  • Water: Acts as a diluent to reduce the soap’s strength and make it safe for plants.
  • Optional: Essential oils like peppermint, rosemary, or neem oil for added pest-repelling properties.

Steps To Make Homemade Insecticidal Soap

All you need to do is follow these simple steps to create your homemade insecticidal soap:

Step 1: Mix the Soap Solution

How To Make Homemade Insecticidal Soap?

Adding the ingredients in a bowl

In a mixing bowl, combine 1 tablespoon of liquid castile soap with 1 quart of water. If you’re using essential oils, add a few drops (5-10) to the mixture.

Step 2: Stir Thoroughly

How To Make Homemade Insecticidal Soap?

Stirring everything

Use a whisk to mix the ingredients together. Ensure the soap is completely dissolved in the water.

Step 3: Transfer to Spray Bottle

How To Make Homemade Insecticidal Soap?

Transfer the liquid to a spray bottle

Once mixed, transfer the solution to a clean spray bottle. Make sure the spray bottle is clean to avoid contaminating your insecticidal soap.

Step 4: Label the Bottle

Label the Bottle

Add label to the bottle

Label the spray bottle along with the contents and date of preparation for future reference.

Step 5: Apply to Plants

Apply to Plants

Apply on the plants

Shake the spray bottle before each use. Spray the insecticidal soap directly onto the affected plants, targeting the pests and the undersides of leaves where insects often hide.

Step 6: Repeat as Needed

Repeat as Needed

Use the insecticidal soap regularly

For best results, apply the insecticidal soap every 7-10 days or as needed until the pest infestation is under control.


  1. Test on a small area of the plant first to check for any adverse reactions before applying it to the entire plant.
  2. Apply the insecticidal soap in the early morning or late evening when temperatures are cooler to prevent leaf burn.
  3. Avoid spraying plants in direct sunlight to prevent the soap from drying out too quickly.

Things to Remember

  1. Store your homemade insecticidal soap in a cool, dark place away from direct sunlight.
  2. Always label your spray bottle to avoid confusion with other household cleaners.
  3. Keep children and pets out of reach, and avoid contact with eyes.

As you can see, you can make an effective homemade insecticidal soap on your own. So, without wasting any time, gather all the supplies and make one for your garden as well.

Also Read: Top Homemade DIY Plant Food Ideas

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