6 ways to make herbal pesticides for your home vegetable garden.
(Baonghean.vn) - Faced with the problem of contaminated food, many families utilize vacant land or rooftops to grow vegetables and fruit trees. Therefore, pest control is also a concern for many. Using natural products, growers can create solutions to limit and eliminate pests.
1. Solution made from chili peppers, garlic, and ginger
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Chili peppers, garlic, and ginger are among the vegetables and fruits that contain a high amount of acid, which can kill or repel pests and insects that harm leafy vegetables.
The ingredients include 1 kg of garlic, 1 kg of chili peppers, and 1 kg of ginger, all crushed and mixed with 3 liters of alcohol. You can soak each ingredient separately or mix all three together in alcohol; this is the concentrated liquid used for spraying.
The optimal soaking time is 15 days, the purpose being to allow the pungent substances in the ingredients to mix evenly into the alcohol. This ensures the highest concentration of these substances in the soaking solution, which is most effective in killing pests.
2. Pesticides from shallots
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Effects: Antifungal, insecticide, mild insect repellent.
Target pests: Aphids, cabbage moths, mites, tomato flies, ticks, whiteflies, seedling blight due to overwatering, late blight, tomato leaf spot, mice and moles.
Preparation method: Crush 10-100g of shallots with 1 liter of water, let it sit in a covered container for 4-7 days before spraying.
3. Making pesticide from basil
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Basil is effective in killing aphids and other insects by inhibiting their egg-laying. The leaves, stems, or the entire plant can be used to make insecticide. When using this insecticide mixture, spray it onto the infected parts of the plant early in the morning to increase its effectiveness.
Instructions: Take cinnamon leaves, crush them, then soak them in water (about 2-3 liters of water for 50g of leaves) overnight. Afterward, filter the water, add soap (8-12 ml of soap for the above amount of solution), and stir well.
4. Pesticide from papaya leaves
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A pesticide solution made from papaya is effective against fungi, nematodes, and insects such as aphids, caterpillars, moths, segmented nematodes, termites, coffee rust, powdery mildew, and brown planthoppers that cause leaf spot in rice.
Add 1 kg of chopped leaves to 1 liter of water, shake vigorously, filter, add 4 liters of water, two tablespoons of kerosene and a little soap (20 g or ml), spray or water the soil to control night moths.
5. Tomato leaf pesticide
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Effects: Tomato leaves contain many alkaloids, a type of chemical that is very effective in killing and repelling insects, especially aphids, moths, caterpillars, thrips, etc.
Preparation method: Soak about 2 bowls of crushed tomato leaves in 2 cups of water overnight. In the morning, strain the clear liquid, add two more cups of water, and spray it on plants, especially herbs and spices.
It's a good idea to intercrop a few tomato plants in the garden to help deter certain pests.
6.Leaf-based pesticidetobacco plant
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Effects: Tobacco-based insecticides can eliminate thrips, stem borers, long-horned stink bugs, small leaf-rolling caterpillars, various types of corn aphids, soybean aphids, leaf miners, and tortoiseshell caterpillars on water spinach, leaf miners on apple trees, and red spider mites on citrus fruits, etc.
Preparation method: To prepare the medicine, soak the medicinal leaves in plain water for one day at a ratio of 1 kg of leaves to 20-40 liters of water. Then, remove the leaves, crush them into a powder, and filter the liquid for spraying.
