Many types of vegetables or crops are affected by pests and diseases, causing growers to wonder whether to use chemicals to eliminate them and accept the risk to health and the environment. In fact, you have another choice, which is to apply natural tricks to prevent pests and diseases in plants, so that they can grow healthily and develop well without being affected by harmful chemicals.
Natural tricks to prevent pests and diseases in plants
Aphids, spiders, and other harmful species can damage plants and prevent them from growing. If you want to get rid of them without spraying chemicals, you can apply these simple tricks below.
Spray solution of chili, garlic, ginger
Spraying a solution made from ginger, garlic, chili, and alcohol is a natural trick to prevent pests and diseases in plants. (Photo: My Garden)
Vegetables and fruits like chili, garlic, ginger… contain high levels of acid, which affects the eyes and skin of pests and insects that harm plants, so they have an effect on eliminating and repelling them.
To make this herbal pesticide, you need to prepare some ingredients: 1kg of garlic, 1kg of chili, 1kg of ginger, and 3 liters of alcohol.
Crush the garlic, chili, ginger and place them in a sealed container, pour alcohol into it and seal the container tightly. Let it soak for 15 days. During the soaking process, do not leave the container of the solution in places that are too hot or exposed to direct sunlight, to avoid evaporation of the alcohol. You can soak each type of ingredient separately with alcohol or soak them together. If soaking separately, use 1kg of ingredient with 1 liter of alcohol.
After soaking for 15 days, the spicy substances in chili, garlic, and ginger are released and mixed with the alcohol. You can use this solution to spray on plants to prevent pests and diseases.
Make a solution from Pyrethrum flowers
Chrysanthemum contains a powerful botanical chemical called pyrethrin. This substance will affect the nervous system of insects and make them unable to function.
You can make your own homemade pesticide solution from chrysanthemum flowers by boiling 100 grams of dried chrysanthemum flowers with one liter of water for 20 minutes, then strain the water, let it cool, and pour it into a spray bottle to spray. This is a natural trick to prevent pests and diseases in plants, especially effective against insects and invertebrates.
Chrysanthemum water can be stored for up to 2 months. You can mix it with neem oil for better effectiveness.
Citrus fruits
Most citrus fruits can be used to make homemade pesticide solutions, such as oranges, lemons, and grapefruits. You can follow these 2 methods:
– For grapefruits, remove the pith and place them on the ground. Ants, snails, and some dangerous reptiles can easily crawl inside due to the fragrance emitted from the grapefruit.
– Boil orange peels and let the solution sit for 24 hours. Then, add a few drops of liquid soap and pour it into a spray bottle and spray all over the garden.
Garlic chives
Garlic chives have the effect of anti-fungal and insect repellent. (Photo: Elipsport)
You use 100 grams of crushed garlic chives, mix with 1 liter of water, pour into a bottle, seal it tightly, and let it sit for 4-7 days before spraying. This natural trick helps prevent pests and diseases in plants, especially effective in controlling fungi and repelling mild pests.
Tomato leaves
Tomato leaves contain many alkaloids, a chemical that has the effect of killing and repelling insects, especially drosophila, moths, and leafhoppers…
You only need to use about 2 cups of crushed tomato leaves soaked in one liter of water overnight, then strain the water and add two cups of water and spray it on the plants.
You can also interplant some tomato plants in the garden to repel some pests.
Source: VTC news
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