We all use these toxic substances, known as pesticides to kill some type of a living thing. But the pesticides have a lot of chemicals which can cause headaches, nausea, cancer, neurological problems, and endocrine disruption. Also, these agricultural chemicals are harmful to the environment as they can destroy our land, kill the precious bees which are our pollinators, and poison our water supplies.
But, we show you 10 natural substances that act as organic pesticides:
The fossilized remains of the tiny, aquatic organisms whose are rich in natural substance silica make a fine powder, known as Diatomaceous Earth (DE). These minuscule fossils have a shape like a cylinder and a razor sharp edges which can kill and cut parasites and small insects, without affecting humans.
DE can be used as an insecticide against numerous garden pests such as ants, aphids, cockroaches, mites, snails, slugs, and earwigs.
Sprinkle the powder on the affected areas around the garden by using a dust applicator bottle or your own hand. After the application, if it starts raining, you should reapply it.
Garlic has antiviral, antibacterial, and anti-fungal properties and this is the reason why it has been used for centuries as a natural medicine. And, this is what makes this herb a potent pesticide.
Making a garlic pesticide is simple, quick, and cheap. You need 5 bulbs of garlic. Peel and crush the cloves from the bulbs and mix them with 17 oz water. Let the mixture stay at least 6 hours.
Before putting the mixture through a fine strainer, add a dash of natural dish soap. Make a dilution of the liquid and a gallon of water and put it into a spray bottle. Spray this mixture on the plants one or two times in a week.
If this garlic pesticide is used in the vegetable garden, make sure not to use it close to harvest time because the food flavors can be affected by it.
Neem oil is a vegetable oil pressed from the seeds and fruits of the neem tree, and it can be used as a natural pesticide, insect repellent and medicinal herb which has garlic odor and bitter taste. It is not harmful to mammals, birds, plants, and bees.
This bug killer can be effective against 200 species of insects. Also, it can fight mildews, rusts, and fungi.
We recommend you to apply this spray to young plants where it can have effect for 22 days.
Mix 1 teaspoon of neem oil with a quart of warm water, and a half teaspoon of soap. You need to spray it on each part of the plant.
Epsom Salt Pesticide
Epsom salt has a lot of usages including pesticide and a pest deterrent.
There are two ways of using these salts to fight bugs: sprinkling and spraying.
You need to dissolve 1 cup of the salts in 5 gallons of water. Put the mixture into a spray bottle and sprinkle on the affected areas of the plants.
But there is an easier option-you can sprinkle the salts around your plants, and every week you need to reapply. This will increase the nutrition absorption due to the fact that magnesium will help the roots of the plant to take nutrients like phosphorus, sulfur, and nitrogen.
White Oil Spray
This spray is made only of two ingredients: oil and soap.
Mix a quarter cup of liquid soap with a cup of vegetable oil. And make sure to shake it well until the color is white!
You need to dilute the concentrate before you use it. When it comes to treating plants, mix 4 cups of water with 1 tablespoon of the liquid. The liquid needs to be reapplied every 5-7 days.
This pesticide is very useful for aphids, the insects which secretly damage your plants.
You need to put a water to boil. Grate the rind from one lemon and when the water is boiling, remove it from the heat and add the lemon rind in it. Let it stand overnight before you strain the liquid. Then put the mixture into a spray bottle. You need to apply to the underside and the top of the leaves of the affected areas of the plant.
Hot Pepper Spray
It is very important to wear gloves! Add 2 cups of chopped hot peppers along with 1 tablespoon of cayenne pepper and a bulb of garlic to a food processor.
Place this mixture in a bucket with 4 gallons of water. Before you strain it let it stand for 24 hours. Add 3 tablespoons of dish soap to the mixture and put it in a spray bottle.
Apply this mixture on your plant two times in a week.
Essential Oil Blends
They are very effective at attracting pollinators to suppressing fungus.
Some of the oils can be used as pesticides:
- Rosemary essential oil is very useful for repelling fleas, mosquitoes, flies and cabbage looper caterpillar.
- Peppermint essential oil helps in eliminating squash bugs, ants, spiders, aphids, fleas, and beetles.
- Clove essential oils can prevent flying insects.
- Cedarwood and pine essential oils are of great importance for keeping snails and slugs at bay.
- Thyme essential oil fights ticks, chiggers, and roaches.
To make an insecticide for all purpose you need to mix 1 teaspoon of vodka with 10 drops of lemon essential oil, 10 drops of cedarwood oil, 10 drops of eucalyptus oil, and an ounce of water. Put it in a glass spray bottle and make sure to shake it before using.
Castile Soap Spray
This spray will eliminate insects like mealybugs, spider mites, and aphids.
It is very simple to make. You need a natural soap which does not have fragrances and synthetic additives, like Dr. Bronner’s Pure Castile Soap.
Mix 1 tablespoon of the soap with a quart of warm water. You can add some of the essential oils that we mentioned before or 1 teaspoon of cayenne powder or garlic.
Rubbing Alcohol Spray
Apply the alcohol directly to the insects by using a cotton swab soaked in the alcohol in order to tackle a small infestation.
When it comes to larger infestations you need to spray the alcohol directly on the entire plant including flowers, the underside of the lower leaves, and stems. The alcohol should cause minimal damage to the plant due to the fact that it evaporates quickly when it is exposed to sun or air.
Apply one or two times in a week.
NOTE: When you use a homemade mixture on your plants, you need to test it first on a small area before applying to the entire plant. And wait for 1-2 days until you are sure that the mixture does not cause any damage.
It is very important not to apply DIY pesticides on hot or sunny days because they can kill the plant. We recommend you to use these treatments in an early evening.
Source: Natural Living Ideas