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Neem Oil Directions For Insecticide On Plants

By Zeb Dye  •  3 comments  •   5 minute read

women using directions for neem oil as an insecticide on plants

Neem oil is gaining popularity as a natural solution for protecting plants from pesky insects. With more people seeking eco-friendly alternatives for pest control, neem oil offers a promising option.

In this blog, we'll explore the world of neem oil as a plant insecticide and provide simple directions for using it. Our goal is to help both experienced and new gardeners understand how to use neem oil effectively. Neem oil can keep plants healthy and growing well.


Understanding Neem Oil

Neem oil is derived from the seeds of the neem trees azadirachta indica, native to the Indian subcontinent. It has been used for centuries in traditional medicine and agriculture for its potent insecticidal properties.

Neem oil contains compounds such as azadirachtin, nimbin, and salannin, which act as natural insect repellents and disrupt the growth and development of pests. These properties make neem oil effective in controlling many plant pests, including aphids, mites, whiteflies, and caterpillars.

Neem oil is available in various formulations, including concentrated oil, ready-to-use sprays, and granules. Each formulation offers different application methods and concentrations of active ingredients, providing flexibility for plant protection strategies.


Importance of Using Neem Oil on Plants

Plant pests such as aphids, spider mites, Japanese beetles, and caterpillars can damage crops and ornamental plants by feeding on the underside of leaves, flowers, and stems. If left unchecked, this damage can weaken plants, reduce yields, and even lead to plant death.

Neem oil offers a natural and effective alternative to kill pests. Unlike chemical pesticides, neem oil is biodegradable and non-toxic to humans, pets, and beneficial insects such as bees and ladybugs. Additionally, neem oil has repellent and anti-feedant properties that deter pests from feeding on treated plants, reducing the need for repeated applications.

When choosing insecticides for plants, consider their environmental impact and potential health risks. Synthetic pesticides can accumulate in soil and water, harming non-target organisms and posing risks to human health through exposure.

Neem oil breaks down rapidly in the environment. It poses minimal risks to beneficial insects, wildlife, and human health, making it a safer choice for pest control in gardens and agricultural settings.


Making And Using Neem Garden Spray

When making your own neem insect spray you can adjust the concentration to the purpose and situation. Some insects are more persistent than others. For those you may want a stronger solution.

Regular spraying for prevention is different than fighting a severe infestation. A preventive spray can be more diluted. 0.5% to 1% is a good general-purpose solution for a neem garden spray. Depending on the purpose you may want to increase that to up to 2%.

Use your own observations and common sense. Keep in mind that neem oil insecticide does not kill insects instantly. Wait for at least a week to judge the effects.

Directions for Zatural Neem Garden Spray as an insecticide on plants

Neem Oil Amounts For Insect Spray

  • 1 Liter or 1 Quart - 0.5 % dilution of neem plant spray
  • 5 ml or (1 tsp) - Cold-Pressed Neem Oil
  • 1-2 ml or (1/3 tsp) - Insecticidal soap or other detergent
  • 1 Liter or (1 Quart) - Warm water

Just multiply these amounts to make a bigger batch.

To make a more concentrated batch, multiply the amount of neem oil and the amount of soap used.

For 4 gallons of a 1% solution of Neem spray, you need the following:

If you have trouble dissolving the oil, use more detergent.

Method For Preparing Neem Spray

Use a high-quality, organic, cold-pressed oil such as Zatural Neem products.

If possible, use warm water. If making a large batch, first make a premix in a small amount of warm water and then add that to the rest of the container's water.

  • Mix the warm water with the soap first!
  • Then, slowly add the oil while stirring vigorously.
  • Fill the mix into your sprayer.
  • You can also fill the premix into your sprayer, which should already contain the rest of the water.
  • Keep shaking or otherwise agitating the mix while spraying.
  • Use the mixture within eight hours.


Additional Neem Oil Extract Directions

To effectively use neem insecticide, thoroughly spray the solution on all leaves, paying special attention to the undersides where insects hide. Additionally, consider drenching the soil around the plant roots, as neem oil benefits the soil health.

Use the neem insect spray within eight hours of mixing, as its potency diminishes over time. To ensure effectiveness, always prepare a fresh batch for each application.

Apply a 0.5% neem solution once every two weeks for preventative maintenance to ward off potential insect issues. If dealing with an infestation, begin by thoroughly drenching leaves and soil, then continue spraying once a week until the problem is resolved.

Adjust the frequency and concentration based on plant sensitivity and insect severity, conducting a small test area first if necessary.

Sum It Up!

In conclusion, neem oil is an effective and eco-friendly insecticide for plants. It protects against common pests while benefiting soil health. Organic gardeners can effectively manage pest issues without synthetic chemicals by following the preparation, application, and dosage directions.

As we strive to maintain healthy gardens and promote environmental sustainability, we are encouraged to explore natural alternatives like neem oil. Remember to adhere to safety precautions and use neem oil responsibly to ensure optimal results and plant well-being.


Interested In Buying Neem Oil?

Zatural Neem Cake is used as a natural bio-fertilizer. The best Neem cake is determined by the amount of oil left in it and the quality of the extraction process.

Our neem cake is a product of cold-pressed neem seeds. Zatural has the best neem oil products, click here to see why.

Zatural Neem Garding Products

*FDA DISCLAIMER -These statements have not been evaluated by the FDA.


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The same neem oil spray recipe you use on your flower beds and garden can also be used on your grass. Neem oil will help kill bug larvae. It may kill fully grown bugs and beetles but works best on larvae.


My roses are always attacked by Japanese beetles in July. This year I made a spray of Neem oil and sprayed the rose buds, especially at night when the beneficial insects are at rest. I also drowned the dormant beetles, collected them at dusk and dunked them in soapy water with Neem oil. The beetles have left my roses and the rest of my garden alone! They stayed at and decimated my neighbor’s flowers. So I also told her to do the same.
Now I wonder if anyone has tried Neem oil in their lawn to get rid of grubs?
Your reply would be much appreciated. Thanks!

Indogulf BioAg LLC,

Thank you for clear directions dealing with Neem oil.
Love Neem oil.


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