Neem Oil Spray

Neem oil is basically a vegetable oil that is pressed from the fruit and seeds of the neem tree. It is bitter in taste, has a strong odor and is very dark red in color. It may appear golden or brown if it is diluted in a spray solution.

Neem oil works by interrupting the hormones in an insect’s body causing it to eventually perish by severely disrupting basic life functions. It will cause some species it forget to eat and others to lay infertile eggs. The most amazing thing about this oil is that it only affects chewing and sucking insects leaving the beneficial ones alive and well.

It has been used for hundreds of years in different East Indian cultures to cure such things as leprosy, malaria, acne, and tuberculosis. It has also been used as an insecticide and insect repellant.

To make Neem Oil Spray you will need:

  • 5 ml of 100% pure neem oil
  • 1 - 2 ml of gentle dish soap or insecticidal soap
  • 1 liter of filtered water
  • Spray bottle

Where to start:

  1. Start by mixing the ingredients together in the bottle, the dish soap will work as an emulsifier allowing the neem oil to mix with the water. 
  2. Let the mix stand for a couple of hours and gently re-shake the spray bottle before using.

Using Neem Oil Spray:

Neem oil spray works as a contact and residual insecticide so thoroughly spray the tops and bottoms of leaves. Neem oil stinks so try to do this in a well ventilated room. The effects won't be noticed immediately and repeat applications will be needed depending on the pest. You should use the batch within 8 hours to ensure maximum potency and remember to periodically shake the spray bottle to be sure the oil stay suspended in the water properly.

Use for:

Neem oil is effective against chewing and sucking pests, such as aphids, spider mites, thrips and whiteflies.

Special Notes:

  • Look for 100% organic, preferably cold pressed neem oil when purchasing.
  • Real neem oil is thick, dark and stinks.
  • It can be stored in the refrigerator for up to 2 years.
  • Neem oil acts as a natural leaf polish which plant care professionals use to give their plants a shine.
  • Neem oil can stain fabrics and carpeting, use with caution.