18 homemade and eco-friendly plant insecticides

homemade and ecological insecticides for plants

We share “recipes” for manufacture 100% organic plant insecticideswhich will help you keep unwanted insects away, while respecting the environment.

For those who want to grow their own food, flowers, medicinal plants, you can use your porch, garden or orchard, the important thing is to start!

But often it’s not easy and to complicate it a little more, after an exhausting day’s work you arrive in your garden and find a legion of insects and pests which, if left unchecked, can ruin your garden. our plans and frustrate all our efforts. .

But all is not lost, here are some “recipes” for be able to manufacture 100% organic insecticides, which will help you keep unwanted insects away, with total respect for the environment. I also recommend that you see what plants you can plant in the garden that will help you control pests.

Important to note, insect repellents should be used after the flowers have fallen.


Natural plant insecticides.

Garlic insecticide spray.

Garlic is a powerful natural insect repellent, capable of deterring and driving away many insects from our garden.

To prepare our homemade insecticide, crush a head of garlic with a few cloves (spice) in a blender, as well as two glasses of water to obtain a very homogeneous compound. Leave to stand for a day then mix in 3 liters of water.

The resulting mixture can be sprayed directly on the leaves of the plants.

Garlic tea is also very effective against aphids. Learn how to prepare it.

Fungicide with milk.

fungicide with milk to fight fungus

There are many ways to fight fungus, some better than others, but with this home remedy with milk (besides being cheap) and organic we will have an excellent weapon to fight and prevent them. So you can prepare it.

Chromatic traps to control whiteflies.

Chromatic traps to control whiteflies.

To fight against the whitefly we are going to use a very simple principle and that is that many insects are attracted by the color yellow, this is what the chromatic traps are based on, knowing that they are irresistibly attracted by this color , you can always catch once they are sometimes perched on it, with adherent materials such as glue, honey, etc…

Ecological remedies against snails and slugs.

Ecological remedies against snails and slugs.

For anyone who has plants outside and especially for people who have a garden, snails and slugs are often one of the biggest problems to deal withboth because they eat the leaves (which is the least serious) but above all because even shoots of newly planted plants you can leave us a simple stem in such a way that this plant will no longer have a future .

As always in home remedies, the ideal is to apply it when snails or slugs become a plague, If we have few snails and the damage is not very serious, my recommendation is to do nothing.

nettle tea

How many times have you accidentally touched a nettle leaf and felt that annoying itchy feeling?

Well, the nettle may not be so troublesome as it becomes an excellent ally for your crops. Put on a pair of thick gloves and collect nettle (500 gr).

Put it in a bucket and cover it with 5 liters of water, let it sit for at least a week and you will have your new 100% organic liquid fertilizer. How to make and use nettle porridge.

Insecticide for tomatoes.

Tomato leaves are rich in alkaloids, an excellent repellent for aphids, worms and caterpillars. Fill two cups with chopped tomato leaves and add water.

Leave to stand for at least one night and dilute the mixture in two glasses of water.

Ready! You can spray the plants with tomato spray. Keep it away from pets as it can be toxic to them.


How to add calcium to our plants with eggshells

Eggshells are an interesting ingredient for our garden. They have a double advantage, they can be used as a fertilizer or as a repellent, in pieces or crushed.

Crushed, sprinkle the powder at the foot of your plants, or in pieces, creating a sort of ring at the base of the plant: this barrier can keep them away from snails and certain caterpillars.

Marinate the tobacco.

The nicotine present in tobacco leaves can be an excellent insect repellent. To prepare the tobacco macerate put 3 or 4 cigarettes in half a liter of water. Leave to macerate for two days then filter or pass the liquid through a fine sieve. Put in a spray bottle and your natural insecticide is ready.

Ginger tea to combat tuta or tomato moth.

This moth wreaks havoc on our nightshades, especially on tomatoes, with ginger tea we will fight this scourge that pierces our fruits. Moreover, ginger is very easy to grow at home.


Pepper insecticide.

Pepper is a natural pest control. To prepare the spray, blend in a high-speed blender for 2 minutes, 6 to 10 chili peppers (any type) with two cups of water. Leave the mixture overnight. The next day, filter and add a glass of water. Pour the liquid into the sprayer.

Nematode friends.

I know it may sound strange, but there are friendly worms for your garden. Often, to control the population of certain pests, other pests are necessary, or on the contrary, other antagonistic insects. This type of good nematode is capable of killing many pests in your garden or orchard, including beetles, weevils and others. It can be purchased in specialized stores.

Remove weeds with newspapers.

Tips for killing weeds

Here is a trick to get rid of weeds in your urban garden or plot of land without using herbicides or toxic chemicals, with which we will not harm our land. With a few newspapers, a little work, no maintenance we can have a better quality soil without weeds.

As we have seen, there is a lot you can do to preserve your crops without using chemicals and contaminants. Again it is nature that gives us solutions to problems.

Citrus orange oil.

insecticide for plants

Mix three tablespoons of organic liquid soap with 30 ml of orange oil and add four liters of water. Spray plants, you can apply it directly to ants and cockroaches.

Neem oil.

Vegetable oil from neem, a tree from India that is a recommended pesticide for 200 types of insects.

Mix a tablespoon of pure vegetable neem oil with half a tablespoon of natural soap and a quarter liter of warm water. Add to any part of the plant.

Magnesium sulfate.

Its most common name is Epsom salt. You can spread it on the plants, it will also provide nutrients such as nitrogen, phosphorus or sulphur.

You can also mix one cup of salt in 20 liters of water to use with a spray bottle.


Blend 3 onions with water in a blender. You can put the mixture in a jar with water and let it sit overnight. Strain it and it will be ready to apply to your plants.

To treat spider mites, whiteflies and aphids.


A medicinal plant as well as a natural insecticide. It will drive animals away in your garden or orchard.

Planted in your orchard or garden, it is a natural remedy to repel weevils, mites and caterpillars in corn plantations.

We can also prepare and spray other plants with pests to combat them. This way it works for mites, whiteflies, aphids, scale insects and also for ants.

Marinate 250 g of fresh absinthe in 1 liter of water in a partially covered container for one week. Filter and spray the affected areas.

Nasturtium infusion.

A powerful fungicide that, in addition to being cheap, we can use at home whenever we need it, since it is made with a very widespread plant and that we can also grow ourselves for its beautiful color or even because it is eaten.

It helps us to control fungi in fruit trees, especially canker, we can also use it to repel pests or to control fungi in crops such as mildew, brotytis or powdery mildew.

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