1, use pesticides, such as killing the enemy. The fruits and vegetables planted in this way can only be eaten after 15 days, and they need to be soaked in water for 5 minutes when cleaning.

2. Soak a little tobacco in water for 2 days, then filter out the tobacco and spray the solution directly on the stems and leaves of crops, which can prevent pests and diseases.

3, water the vegetables, drop a few drops of essential oil, and the plants will have certain preventive ability. Spray the leaves with pepper water, and there will be no bugs on the leaves. Boil water and dried peppers together for about an hour, filter and spray.

4. Add some enzymes to water vegetables, and enzymes also have certain insect-proof effect? .

5. Spray the tea seed cake in water or dilute the spray surface with flour and detergent, and the effect is good.

6. When aphids grow on vegetable seedlings, they can be removed by spraying plant ash.