Things You'll Need:
- Measuring cup that measures in liters and milliliters
- Funnel
- Clean 2 liter soda bottle with cap
- 1 liter warm water
- 2 milliliters liquid castile soap
- 20 milliliters pure or crude neem oil
- Spray bottle
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Step 1
Pour 1 liter of warm water through a funnel into a clean 2-liter soda bottle.
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Step 2
Add 2 milliliters of liquid castile soap to the warm water.
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Step 3
Close the cap onto the soda bottle and shake the mixture vigorously for one minute or until the warm water and liquid castile soap are thoroughly combined.
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Step 4
Remove the cap from the soda bottle and pour 20 milliliters of pure or crude neem oil into the soapy water mixture. Pure neem oil solidifies at cold temperatures. If the neem has solidified, place the bottle of neem in a bowl of warm water until it liquefies.
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Step 5
Replace the cap on the soda bottle and vigorously shake the bottle to combine the neem oil with the soapy water.
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Step 6
Pour the finished mixture through a funnel into a spray bottle. Shake the mixture before use. To use the neem insecticide, spray on top of and underneath each leaf you wish to treat.










