How To Use Neem Oil | Fly Spray & Garden Spray

Top recipes and uses for Neem Oil

-Fly Spray-

Used for horses, cattle, pets, and more! Much more affordable than buying Fly Spray from the store.

Things You'll Need

  • 2 cups vinegar
  • Water
  • 1 TBSP. Neem oil (or Neem Extract)*
  • 1/2 tsp. the essential oil of garlic or tea tree (optional)**
  • Spray bottle
  • Funnel
  • If a healing effect is needed, replace the vinegar with Aloe Vera Juice and the Garlic EO with Lavender EO.

*The Neem Oil will separate, so this needs to be shaken before and during each use. The Neem Extract will not separate but is not as effective as the oil.

**The garlic essential oil will increase the effects of the formula but it works well without also.


  1. Remove the nozzle from an old fly spray bottle or a commercially bought spray bottle. Insert a funnel.
  2. Pour 2 cups of vinegar into the bottle, using the funnel. You can use either apple-cider, distilled vinegar, or for healing use Aloe Vera Juice. Add water to fill 32oz
  3. Add the 1 TBSP Neem Oil.
  4. Replace the nozzle and shake. It makes about 32 ounces of fly spray, which is the typical size of a bottle of commercial fly spray.


-Neem Oil Plant Spray-

1. Makes 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.

2. Makes 32oz of a 0.5% solution of Neem spray you Neem:

  • 5 ml (1 tsp) neem oil (use pure, cold-pressed oil)
  • 1-2 ml (1/3 tsp) insecticidal soap or another detergent
  • 1 liter (1 quart) warm water

Method For Preparing Neem Spray

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.

  1. Mix the warm water with the soap first!
  2. Then slowly add the oil while stirring vigorously.
  3. Fill the mix into your sprayer. (Or fill the premix into your sprayer, which should already contain the rest of the water. Mix well.)
  4. Keep shaking or otherwise agitating the mix while spraying.
  5. 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 drenched 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.

Organic Neem Oil

Neem oil comes from the seeds of the Neem tree, located in India. Zatural’s neem oil comes fresh from India. Neem oil is gathered through a process called Cold-Pressing. Our Neem oil is 100% virgin and grown organically.

Zatural’s Organic Neem oil has many uses and benefits. The neem tree has many medicinal properties, and that is why it is known as the ‘miracle tree’. Every part of the tree can be used in one way or another.

For educational purposes only

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

Comments (2 Responses)

22 July, 2020


Hi Mack!
We always recommend at least a 1:10 ratio of Neem Oil. 1 part Neem; 10 parts other ingredients.

22 July, 2020


how much neem oil do you use in 1 lb of soap base

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