What if there are worms in the roots of flowers?

Flower root insects can be mashed and put into flowerpots with sanitary balls, which can achieve the purpose of pest control; omethoate can also be irrigated with water to kill pests, or garlic can be mashed and scattered into flowerpots, which can mainly control ants and nematodes; when root pests are serious, the soil can be directly changed to kill the soil.