women using directions for neem oil as an insecticide on plants

Directions For Neem Oil As An Insecticide On Plants

Zatural Neem Oil Garden Spray Discount with directions for neem oil as an insecticide on plants

Making And Using Neem Garden Spray

When making your own neem insect spray you can adjust the concentration to the purpose and situation.

There are no hard and fast rules, only guidelines. 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.

For a neem garden spray 0.5% to 1% is a good general-purpose solution. 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

  • For 1 liter or 1 quart of a 0.5 % dilution of neem plant spray you need:
  • 5 ml (1 tsp) neem oil (use pure, cold pressed oil)
  • 1-2 ml (1/3 tsp) insecticidal soap or other detergent
  • 1 liter (1 quart) warm water

Just multiply these amounts if you want to make a bigger batch.

If you want to make a more concentrated batch multiply both the amount of neem oil and the amount of soap used.

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

  • 6.5 oz neem oil
  • 5 tsps insecticidal soap
  • 4 gallons of water

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

Spraying plant leaves after using directions for neem oil as an insecticide on plants

Method For Preparing Neem Spray

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

Use warm water if possible. If making a large batch, first make a premix in a small amount of warm water, then add that to the rest of the water into the big container.

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

Additional Instructions

Spray the neem insecticide solution on all the leaves, especially the undersides where insects like to hide.

If you have plenty drench the soil around the roots as well. It does not hurt, neem oil is actually good for your soil.

Use your neem insect spray as quickly as possible, definitely within eight hours. Once mixed with water the neem oil starts breaking down.

Always make a fresh batch for spraying, and only prepare the amount you need.

How often should you use neem garden spray? The suggestions below are general guidelines.

Keep a close eye on things and fine tune as needed. If you are worried about sensitive plants, spray just a little bit in a small area, wait for a day or two, and see what happens. If you use insecticidal soap you should not have any problems.

Neem plant spray as a preventative measure: Spray once a fortnight using a 0.5 % solution. This should prevent any insect problems in the first place.

Neem insect spray to fight an infestation: When spraying the first time, thoroughly drench all leaves and the soil around the plant.

Then spray once a week until the problem disappears. If it rains you may need to respray sooner. If you are dealing with a less sensitive insect species you may need to increase the concentration of the neem spray. See how you go.

Interested in buying Neem oil? 

Buy Zatural 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.

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


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!

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

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