Home remedies to eliminate plant pests

home remedies to eliminate plant pests

Our gardens and orchards are usually infested with aphids, ants, slugs or mites. Often the easiest recourse is to buy pesticides to save crops, or crops that can be reduced or lost if we want to go fully organic. exist home remedies to eliminate plant pests which are very effective.

For this reason, we are going to tell you in this article what are the main home remedies to eliminate plant pests and how you should use them.

pests in the garden

pests in the garden

Insecticides, which we see in many stores, are chemicals used in agriculture to protect crops from insects, fungi, weeds, and other pests. Pesticides are also potentially toxic to humans., according to the World Health Organization. They may have harmful health effects, for example, cause cancer, or have effects on the reproductive, immune, or nervous systems. Pesticides must be studied for all possible health effects before they are approved for use.

Long before the invention of chemical insecticides, farmers had home remedies to kill off invasions of plant-infecting insects. These natural alternatives to chemical pesticides can be easily made at home and can save our horticultural crops.

How to know if there are pests in your plants

Before learning how to combat plant pests, the first thing you should do is determine if your plants have any. Below we list the characteristics of plants infested with aphids and other insects so that you know how to recognize these parasites:

  • Yellowed and wrinkled leaves.
  • The shiny, sticky leaves are caused by the honeydew they excrete by eating the sap of the plant.
  • The ants roam the stems.
  • Plant growth is late or weak.
  • Variations of buds and flowers.
  • White spots, especially on cacti and succulents.
  • You can also check the underside of the leaves to see if you see any insects.
  • Don't worry if your plants have these characteristics or if you see aphids on the leaves, as these parasites are easy to kill.

Home remedies to eliminate plant pests

home remedies to eliminate pests from plants in your garden


Garlic is a powerful insect repellent that will keep them away. To prepare this spray, you must crush a head of garlic with a few cloves with two glasses of water in a blender until a homogeneous mixture is obtained. Let this mixture sit for a full day before adding another 3 liters of water. It can be applied by directly evaporating the leaves of the plant.


Tomato leaves are rich in alkaloids and are excellent repellents against aphids, worms and caterpillars. Fill two cups with chopped tomato leaves and add water. Rest at least one night, then dilute the mixture with two glasses of water. It is important to keep it away from pets as it can be toxic to pets.


The shells make a good soil fertilizer and are a repellent to snails and some caterpillars. Crush the husks and sprinkle the powder over the base of the plant.


To kill mites, coriander is a great remedy. The plant should be boiled in water for about 10 minutes.Strain the mixture and throw it into the orchard or garden with the help of a sprayer.

Vegetable oil

To kill aphids, whiteflies, mites or caterpillars, a good solution is to mix 2 cups of vegetable oil with 1/2 cup of pure liquid soap, shake well until white, dilute with water and spray. It is better to use it in the morning or in the afternoon when the sun is not too hot, as more than 30 degrees Celsius may damage the plants.

marigold or basil

Planting marigolds or basil around the plants is a great way to repel whiteflies.


To kill insect eggs, mix half a cup of fresh, unpasteurized milk with 4 cups of flour and 20 liters of water.


In addition to being a nuisance plant that causes irritation if you touch it, nettle makes an excellent insecticide for aphid control and soil fertilizer. Mix 100 g of nettles with 10 liters of water and let it rest for 4 days before using.


Using natural tobacco we can fight against annoying red mites. 60 grams of tobacco should be mixed with 1 liter of water and 10 grams of natural soap. Apply the mixture every 7 days for two months.


Lavender is a great way to repel ants. The infusion should be made with 300g of fresh lavender leaves and 1 liter of water. Let cool and spray on the attacked plants.

Other home remedies to eliminate plant pests

plants with pests

Castile soap

Castile soap is ideal for eliminating powdery mildew, whitefly and other insects such as aphids, mites and thrips. Just dilute a tablespoon of Castile soap, 2 teaspoons of baking soda and 2 tablespoons of vegetable oil in 2 liters of water. Mix well and spray the plants.


The natural oils contained in the peel of citrus fruits such as limes, lemons, oranges, tangerines, and grapefruit are very effective in killing insects such as aphids, mealybugs, and other soft-shelled insects. To make homemade citrus bug repellent, you should peel the fruit into strips and place them in a heatproof container with 2 cups of boiling water. Cover and let sit for at least 24 hours. Spray the plants with this solution several times a week.


Wood ash, which can be left in the fireplace or after a barbecue, is rich in minerals that help plants absorb nutrients more efficiently, but its benefits don't end there, as it is an insecticide and fungicide. versatile. In fact, to get rid of snails, worms and slugs, spray around the plants. To prepare an insecticide from ash, just mix a few tablespoons of ash in a liter of water and let it sit for about 4 days. Strain to remove impurities and add a tablespoon of Castile soap. Spray the plants with a sprinkler.

I hope that with this information you can learn more about home remedies to eliminate plant pests.

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