Vegetables produce pesticides, which are simple and effective, do not pollute the environment, and are harmless to humans and animals. 1. Cucumber Cucumber Le 1.25 kg, add water, 2.5 kg smashed, to the slag to take the liquid, 5 kg of water per kilogram of the original solution after spraying release, can control vegetable insects, vegetable worms and other pests, insecticidal effect of 100%. 2, tomato leaves add a small amount of water smashed, to the slag to take the original solution. Mix 3 parts of raw liquid and 2 parts of water, add a small amount of soap and water to mix and spray. It can control aphids, and the insecticidal effect is over 90%. 3, leek Leek 1 kilograms of water 0.1 kg smashed, take the original solution. After adding 8 kg of water per gram of liquid, spray it to prevent the insects such as red spider and cotton aphid. The insecticidal effect can reach over 90%. 4, pepper leaf pepper plus a small amount of water smashed, take the original solution, with 7 parts of the original plus 13 parts of water mixed, plus a small amount of soap, spray evenly after mixing to prevent aphids.