There is no fermented and decomposed nutrient soil, and there are many pests and diseases in the soil. Animal manure, crop stalks and leftovers contain germs, eggs and viruses. If directly applied to the soil, it will spread, breed and hatch in the soil, endangering crop growth and breaking out pests and diseases.

People who grow flowers for a long time often encounter bugs in pots. Here I briefly introduce several methods:

First, prevention. Before the potted flowers are put in the pot, put the pot soil into a bigger old food bag, pour boiling water, fasten the mouth of the bag, expose it in the sun for a day, and then spread it out to dry it, which can kill eggs.

second, chemical method. Long-term humidity in the basin soil causes insect pests, so you can buy pesticides, spray them to kill insects, and avoid using them in indoor potted plants.

Third, change the living environment of pests, move the flowerpot to a dry and ventilated place, bask in the sun, pay attention to watering it in time, and shade-loving flowers, such as orchids and asparagus, should cover the plants to prevent sunburn.

fourth, change the pot soil. Use the appropriate pot soil that has been sterilized by insects and bacteria to completely change the soil. After changing the soil, it is necessary to pay attention to shading and curing for a period of time before it can be transferred to normal planting.

Summary: It is a very common phenomenon that insects grow in the soil where flowers are planted, and there are many reasons for their formation. The main reason is that the soil is not properly treated, and many germs, eggs and pests live or overwinter in the soil. So the best way is to change the basin, that is, change the soil. If you haven't started to put on the pot, kill the soil before putting on the pot.