There’s been no innovation or change in rodent control since the Middle Ages, and the world still has a rat problem.
Lethal rat poisons may enter the ecosystem where they can become toxic to the environment, pets and wildlife if not used as directed.
According to the American Association of Poison Control Centers, between 12-15,000 children are accidentally poisoned yearly in the USA alone.
There’s no sustained reduction in population. Killing rats often creates a rebound effect: surviving rats can reproduce even faster and neighboring rats can move in.