1, pepper and pepper water. A relatively simple and easy-to-operate method is to soak pepper or pepper in water, which can effectively kill insects. Generally speaking, you can soak pepper or pepper in water and wait quietly. In about five days, mixing the solution with water evenly and spraying it around the flowers can not only effectively control aphids and red spiders, but also sterilize and kill two birds with one stone. If you choose to soak in warm water, the waiting time can be shortened appropriately.

2, cigarette butts soaked in water. This is also a common method. Choose about 20 cigarette butts and soak them in water until the color of the aqueous solution turns brown. Then mix it with water to water the flowers. When watering the flowers, a small amount of soap can be added, and the insecticidal effect will be more obvious.

3. The orange peel is soaked in water. Citrus peel contains limonene and other substances, which can effectively kill pests such as aphids, bacteria and mosquitoes, and also play a mosquito repellent effect. Citrus peel can be broken into small pieces, soaked in warm water for about 24 hours, then filtered and sprayed on flowers, which can effectively kill insects.