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How to Make Neem Oil Spray for Plants

How to Make Neem Oil Spray for Plants at Home: We've learned the drawbacks of employing synthetic pesticides over time. Neem oil is an environmentally friendly solution to getting rid of a variety of garden pests on both indoor and outdoor plants. The secret, though, is to utilize neem oil properly. It can harm certain plants if not applied properly.

Market neem oil solutions are available, but they are likely to be less strong and effective than handmade alternatives. In this blog, we'll show you how to make neem oil spray for plants at home to protect them from insects and pests.

How to Make Neem Oil Spray for Plants at Home

Making neem oil spray for plants at home is simple; this recipe is 100% organic and beneficial for your plants, so it won't harm them. Let's have a look at how to make neem oil spray for plants at home.


  • Water - One Gallon
  • Concentrated, Cold-Pressed Neem Oil - 1 Tablespoon 
  • Liquid Soap - 1 Teaspoon Or Pre-Wetted Silica Powder - 1 Teaspoon
  • Optional: Aloe Vera Powder -  1/8 To 1/4 Teaspoon 
  • Essential Oils - 20 Drops Total


  • It's easiest to pre-mix a portion of silica powder with water and store it as a liquid solution if you plan to use neem and silica powder on a regular basis. It's ready to use and may be mixed with neem anytime you need it. Combine 35 grams of silica powder with 8 ounces of water to achieve this. Mix thoroughly and keep for up to a year in a cold, dark location, enough for 48 one-gallon batches of neem oil spray!
  • Fill your pump sprayer halfway with water, about a pint short of a gallon. Scale up or down as appropriate, depending on how many and how huge the plants are. With time, you'll find your stride. Add ⅛ to ¼ teaspoons of aloe vera powder to your gallon of water now if you wish to use it in your foliar spray. Shake the sprayer carefully before using it.
  • The neem oil must then be emulsified. Combine 1 tablespoon of neem oil with 1 teaspoon of liquid soap or 1 teaspoon of the pre-made liquid silica solution described above in a small container, such as a half-pint jar or small beaker. To blend, thoroughly stir everything together. This should result in a thick, creamy yellow liquid.
  • Fill a clean quart jar with warm water to about three-quarters full. It is vital to use warm, but not boiling, water to aid in mixing. Pour your neem soap/silica solution in now. Fill the jar halfway with water and shake it violently. Oil droplets will not form on the surface if it is fully blended. Neem oil has now been emulsified!
  • To make the final diluted combination, combine the warm quart of neem solution with the water already in your sprayer. To mix, close the bottle and shake it vigorously.

Adding Essential Oils (Optional)

  • Essential oils can be employed in the same way that peppermint and neem scents are unpleasant to pests and thus deter them. Essential oils are highly concentrated liquids. If you want a little extra protection, consider adding a few drops to the recipe above. 10-20 drops per gallon of water are plenty.
  • Essential oils that function as natural insect repellents include peppermint, lavender, orange, tea tree, and eucalyptus, among many more.

Uses of Neem Oil Spray in Garden

Neem oil is primarily known for its effectiveness as a pesticide. There's a lot more to this incredible oil, and here's how to get the most out of it.

  • Neem Oil as a Foliar Spray

Neem oil can be used to kill insects at different phases of their life cycle. This makes it an excellent option for use throughout the year.

During the growing season, you could use it as a foliar application to manage common pests. Predatory insects, aphids, and flea beetles are examples.

Neem oil could also be used to get rid of hibernating bugs and eggs on your plants during the dormant season.

  • Neem Oil As A Fertilizer 

Neem cake is formed from organic manure and is a byproduct of cold-pressed neem kernels and fruit. The cake's unique feature is that it may be used as both a fertilizer and an insecticide.

Neem cake can help fertilize the soil by increasing nitrogen availability. White ants, nematodes, and grubs are all controlled using this product.

How To Use Neem Oil To Kill Bugs On Plants

Neem oil spray is quite easy to use in neutralizing Insects that can be a real pain in the garden. The use of neem oil spray is essential. Neem oil spray with its insect repellent properties not only removes insects and pests from your garden but also prevents any further infection. We have provided a few ways to use neem oil to kill bugs in plants.

  • Several bugs live on the underparts of the leaves. Using the spray, thoroughly moisten both surfaces of the leaves.
  • Apply the neem oil spray in the morning or evening. Spraying the plants in the afternoon and when the heat is above 80F is not recommended.
  • To be able to kill an insect, the oil must have an opportunity to come into touch with it. Spraying should be avoided when rain is imminent.
  • After 40 minutes of mixing with the water and soap, the efficiency of the neem oil mixture will diminish. When you're done spraying, discard the remaining oil spray mixture.
  • Make sure the spray bottle or nozzle is clean before storing it. The nozzle may become clogged as the neem oil residue dries.
  • Begin with the recipe listed above. If no improvement is shown after a few applications, boost the neem oil dosage to 1.5 times.
  • As a pesticide, spray neem Oil every 7 days until the pests are gone to control an infestation. Getting rid of the pests fully takes time. Be patient and repeat the process every seven days. Here, consistency is crucial!
  • Spray as a prophylactic measure: Be proactive in spraying the neem oil spray to your plants to prevent pest assaults. At 14-day intervals, treat the plants with neem oil spray. Summer days with excessive temperatures should be avoided.

When to Use Neem Oil?

Do the leaves of your squash or eggplant have holes in them? Do you notice any little insects on your tomato plants in the garden? Or are you bothered by the fungus gnats buzzing around your indoor seedlings? Use neem oil spray on the afflicted plants if you answered yes to any of the inquiries or to control any insects that threaten your vegetable garden.


In the end, what counts most is utilizing organic insecticides for healthy plants, and the finest neem oil spray for plants is made with organic and appropriate chemicals. For decades, vedaoils has provided the highest quality organic component for neem oil spray all over the world. Read the whole article to get to know about how to make neem oil spray for plants at home.


Q: How long does homemade neem oil spray last?

Neem oil has a shelf life of 1-3 years if kept in a cool, dry environment. When mixed with water and an emulsifier to make an insecticidal spray, neem oil maintains peak activity for only a few hours but can last up to 3-4 days before its chemical constituents break down completely.

Q: What happens if you use too much neem oil on plants?

If you apply neem oil to plants many times a week, you can overdo it. If you haven't reduced the neem oil before usage, you may use too much. If you apply too much neem oil to your leaves, it will burn them, turn them yellow, and sometimes even kill pollinators.

Q: How often can you spray neem oil on plants?

In general, neem oil is only used to get rid of infestations. However, you can use it every 2 to 3 weeks as a preventive.

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