What are the methods for making plant-based insecticides?
Do not use inferior pesticides. To ensure the quality of the pesticides used, purchase them from legitimate manufacturers and pesticide sales outlets to avoid buying counterfeit or substandard pesticides, and pay attention to the production date and expiration period of the pesticides. Do not use bacterial insecticides at low temperatures; their active ingredients are protein crystals and living spores...
Chinese chive leaves: Take 1 kg of Chinese chive leaves, add 100 g of water, mash them, and squeeze out the undiluted liquid. For every 1 kg of undiluted liquid, add 8 kg of water and spray; the control effect against red spider mites and cotton aphids reaches about 90%.Welsh onion: Take 1 kg of Welsh onion, add 400 g of water, mash and squeeze out the juice. For every 1 kg of the liquid, add 6 kg of water, stir well, and spray; it can control cabbage caterpillars, aphids, stem borers, and many other pests.
Tomato leaves: Mash tomato leaves with a small amount of water, remove the residue and collect the undiluted liquid. Mix 3 parts undiluted liquid with 2 parts water, stir evenly, then add a small amount of soap solution and spray; the control effect against red spider mites can reach 100%.
Luffa leaves: Mash luffa leaves with a small amount of water, remove the residue and collect the undiluted liquid. Mix 7 parts undiluted liquid with 13 parts water, then add a small amount of soap solution, mix evenly, and spray; it has over 90% effectiveness against cabbage caterpillars, red spider mites, cabbage webworms, and other pests.
Pumpkin leaves: Mash pumpkin leaves with a small amount of water, remove the residue and collect the undiluted liquid. Mix 3 parts undiluted liquid with 3 parts water, then add a small amount of soap solution, stir evenly; the effectiveness against aphids reaches over 90%.
Cucumber vines: Take cucumber vines at a ratio of 2.5 kg vines to 1 kg water, and mash the cucumber vines. Remove the residue and collect the undiluted liquid; dilute every 1 kg of undiluted liquid with 5 kg of water; the effectiveness against cabbage caterpillars and cabbage webworms reaches over 90%.
Peanut leaves: When cotton aphids appear, mash fresh peanut leaves with water and squeeze out the juice. At a ratio of 2 kg leaf juice to 3 kg water, add some soap solution, and spray it on cotton stems and leaves to kill cotton aphids.