Explain why the water plant contains the pesticide ddt

The water plants contain DDT or dichlor-diphenyl-tricloroehane was developed in the 1940s as an insecticide. Because of its availability, it is inexpensive, has a high rate of longevity and can readily be produced that is why it is mostly used as the main ingredient. However, the manufacturing of this product has stopped due to the effects that it has on humans and other organisms. It can accumulate in plants and can destroy fatty tissues in organisms.