10 Homemade Organic Pesticides


small plant in a pile of dirt

Ever wonder what farmers did hundreds of years ago to fight off crop pests? Long before the invention of harmful chemical pesticides (yes, the kind that is linked to cancerous cellular activity), farmers and householders came up with multiple remedies for removing insect infestations from their garden plants.

The following list will offer some of our favorite, all-natural, inexpensive, organic methods for making bug-busting pesticides for your home garden.


1. Neem

Ancient Indians highly revered neem oil as a powerful, all-natural plant for warding off pests. In fact, neem juice is the most powerful natural pesticide on the planet, holding over 50 natural insecticides. This extremely bitter tree leaf can be made in a spray form, or can be bought from a number of reputable companies.

To make your own neem oil spray, simply add 1/2 an ounce of high quality organic neem oil and ½ teaspoon of a mild organic liquid soap (I use Dr. Bronners Peppermint) to two quarts of warm water. Stir slowly. Add to a spray bottle and use immediately.

himalayan crystal salt

2. Salt Spray

For treating plants infested with spider mites, mix 2 tablespoons of Himalayan Crystal Salt into one gallon of warm water and spray on infected areas.

3. Mineral oil

Mix 10-30 ml of high-grade oil with one liter of water. Stir and add to spray bottle. This organic pesticide works well for dehydrating insects and their eggs.

4. Citrus Oil and/or Cayenne Pepper Mix

This is another great organic pesticide that works well on ants. Simply, mix 10 drops of citrus essential oil with one teaspoon cayenne pepper and 1 cup of warm water. Shake well and spray in the affected areas.

5. Soap, Orange Citrus Oil & Water

To make this natural pesticide, simply mix 3 tablespoons of liquid Organic Castile soap with 1 ounce of Orange oil to one gallon of water. Shake well. This is an especially effective treatment against slugs and can be sprayed directly on ants and roaches.

6. Eucalyptus oil

A great natural pesticide for flies, bees and wasps. Simply sprinkle a few drops of eucalyptus oil where the insects are found. They will all be gone before you know it.

7. Onion and Garlic Spray

Mince one organic clove of garlic and one medium sized organic onion. Add to a quart of water. Wait one hour and then add one teaspoon of cayenne pepper and one tablespoon of liquid soap to the mix. This organic spray will hold its potency for one week if stored in the refrigerator.

8. Chrysanthemum Flower Tea

These flowers hold a powerful plant chemical component called pyrethrum. This substance invades the nervous system of insects rendering them immobile. You can make your own spray by boiling 100 grams of dried flowers into 1 liter of water. Boil dried flowers in water for twenty minutes. Strain, cool and place in a spray bottle. Can be stored for up to two months. You can also add some organic neem oil to enhance the effectiveness.

9. Tobacco Spray

Tobacco

Just as tobacco is not good for humans, tobacco spray was once a commonly used pesticide for killing pests, caterpillars and aphids. To make, simply take one cup of organic tobacco (preferably a brand that is organic and all-natural) and mix it in one gallon of water. Allow the mixture to set overnight. After 24-hours, the mix should have a light brown color. If it is very dark, add more water. This mix can be used on most plants, with the exception of those in the solanaceous family (tomatoes, peppers, eggplants, etc.)

10. Chile pepper / Diatomaceous Earth

Grind two handfuls of dry chiles into a fine powder and mix with 1 cup of Diatomaceous earth. Add to 2 liters of water and let set overnight. Shake well before applying.

If you have some easy recipes for making your own organic pesticides, we would love to hear them.

- Dr. Edward F. Group III, DC, ND, DACBN, DCBCN, DABFM

Free Sample E-Book: Learn How to Cleanse Your Body of Harmful Toxins Using Organic Methods


  • sharon

    What do you put on squash to kill the bugs?

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  • Heather Sunshine

    For the first time in forever, I have planted marigolds, and something is eating the crap out of them. Ive always used marigolds in my gardens to encourage ladybug bettles to eat aphids, and such. Im at a loss at what this could be its eating the green leaves, not the blooms does anyone have any suggestions?

  • Vanessa @ Green Global Travel

    These are some good tips! I think also simply having a variety of produce to grow aids in repelling pests. There’s so much pesticide out there in use now due to monocultures.

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  • heliena

    I like the way you think. Thank you for the heartfelt view.
    Heliena

  • Heliena

    Yes and they are all GODS creatures the as you!

  • Diana Mooney

    The best thing I have ever found for grasshoppers is to raise a troop of guineas. They will do the job as will chickens.

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  • AJ Chestnut

    I am all for living in harmony with bugs, but this summer a new invader is here killing all of our flowering plants. Some of the bugs that are normally around are missing, and I don’t think it is a coincidence. Particularly the lady bugs and butterflies. We used to get invaded by both every year ( which I actually look forward to because, well, they are cute bugs!) but not this year. Even the lightning bugs are spare and I really think it’s this new bug I never see. What could it be?

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  • Amila B Madduma

    I can prepared organic pesticide used by cashew nut shell. Presently I apply it for all of coconut and paddy pest. It’s have some special odour to control the pest. Special procedure was used to produce it. If somebody represent can gave help to me I surely improve it as most popular organic pesticide in the world. ( today I doing research about rice pest control using that pesticide. Basic test was successfully.

  • Amila B Madduma

    I’m University a student. I can prepared special organic pesticide using cashew nut shell. It very successfully for pest control in paddy, vegetable and coconut pests. presently I’m doing research for brown plant hopper (Nilapavarta lugens) control research. any body can help me for improve it as best organic pesticide in world. It has special to increase plant growth rate.

  • CoJoGo

    I desperately need help with bird mites! I thought it would be a great idea to allow barn swallows build a nest under the front porch roof just above our door. Now mites are literally everywhere and getting worse. I’d rather not use an exterminator but this is crazy! Ideas?

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  • http://www.globalhealingcenter.com/ Global Healing Center

    That’s a problem! Check out this site, it has some info: http://www.birdmites.org/strategies.html

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